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Adamant Eden Crimson

#df2838
Notes

Adamant Eden Crimson (#DF2838) is a true red with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (355°, 74%, 52%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary cyan. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#df2838
RGB
rgb(223, 40, 56)
HSL
hsl(355, 74%, 52%)
HWB
hwb(355 16% 13%)
OKLCH
oklch(58.6% 0.215 23.4)
P3
color(display-p3 0.8040 0.2348 0.2482)
HSV
hsv(355, 82%, 87%)
LAB
lab(48.88% 67.85 38.21)
LCH
lch(48.88% 77.87 29.39)
CMYK
cmyk(0%, 82%, 75%, 13%)

Etymology

Adamant
adjective

Greek adámas, unconquerable — derived from a- (not) plus damnan (to subdue). As a color modifier, adamant implies a saturated-and-rock-hard quality where the hue maintains diamond-hard pigmentation. Sits at the bold-and-resilient end of the grid, parallel to indomitable and ironclad in usage.

Eden
modifier

Hebrew ‘Ēden, garden-of-paradise. As a color modifier, eden implies a primal-paradise-and-garden-of-creation quality, the visual register of Genesis-Eden-and-Lucas-Cranach-paradise hand-primal-paradise-and-garden-of-creation Genesis-Eden-and-Lucas-Cranach-paradise-and-Northern-Renaissance eden-and-primal-paradise-and-garden-of-creation surfaces under Genesis-Eden-and-Lucas-Cranach-paradise-and-Northern-Renaissance Cranach-and-Bosch-and-Hieronymus primal-garden-light. Sits at the modifier-and-myth end of the grid, parallel to avalon and bliss in usage.

Crimson
noun

From the Old Spanish cremesin, itself from the Arabic qirmiz — the kermes scale insect, dried and ground into a brilliant carmine dye prized in the medieval Mediterranean. For centuries the most expensive red on a draper's shelf, reserved for cardinals, kings, and the cloth that gave English the word crimson. Cooler than scarlet, deeper than rose; the color of pomegranate seeds and a serious occasion.

Closest matches

The nearest named color in three reference sources, ranked by perceptual distance (ΔE76 in CIELAB). ΔE < 1 is imperceptible to most viewers; ΔE > 10 is clearly different. When two sources point to the same hex they’re merged into one tile; click any to open that color’s page.

Variations

Click any swatch to explore

Harmonies

Accessibility

Color-vision simulation

How this color appears to viewers with the four major color-vision-deficiency types. Computed via the Machado (2009) physiologically-based model. If a tile matches the original, the color reads the same to that viewer.

#df2838
Original
#645b37
Protanopia
#908231
Deuteranopia
#f60031
Tritanopia
#505050
Achromatopsia
WCAG contrast

The color used as foreground text against pure white and pure black, with the contrast ratio and WCAG 2.1 grade. Aim for AA (4.5:1) for body text and AA Large (3:1) for 18 pt+ headlines; AAA (7:1) is the gold standard for long-form reading surfaces.

The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon White
4.67:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
4.50:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##DF2838
Display P3
Display P3
color(display-p3 0.8040 0.2348 0.2482)
P3 has visible headroomOKLCH chroma 0.215

This color is chromatic enough that authoring it as P3 native (instead of clamping to sRGB) gives a perceptibly more saturated render on wide-gamut displays — modern Macs, iPhones, iPads, and most recent OLED laptops.

Related Colors

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