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Robust Isis Crimson

#cd525a
Notes

Robust Isis Crimson (#CD525A) is a true red with a warm character. It leans warm, pulling light toward red, orange, and yellow. Naturally inviting, it suits editorial and hospitality contexts. Its HSL profile (356°, 55%, 56%) 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
#cd525a
RGB
rgb(205, 82, 90)
HSL
hsl(356, 55%, 56%)
HWB
hwb(356 32% 20%)
OKLCH
oklch(60.1% 0.156 19.2)
P3
color(display-p3 0.7465 0.3523 0.3650)
HSV
hsv(356, 60%, 80%)
LAB
lab(51.56% 49.39 20.85)
LCH
lch(51.56% 53.61 22.89)
CMYK
cmyk(0%, 60%, 56%, 20%)

Etymology

Robust
adjective

From the Latin robustus, of oak — implying strength combined with substance. As a color modifier, robust describes saturation combined with body: a robust burgundy, a robust olive. Sits in the bold-and-warm corner alongside strong and solid, with the slightly textural implication of a color that has substance behind the pigment.

Isis
modifier

Egyptian Aset, throne-and-mother-goddess. As a color modifier, isis implies a winged-and-throne-and-mother-goddess quality, the visual register of Egyptian-Isis-and-Philae-temple hand-winged-and-throne-and-mother-goddess Egyptian-Isis-and-Philae-temple-and-Osirian-myth isis-and-winged-and-throne-and-mother-goddess surfaces under Egyptian-Isis-and-Philae-temple-and-Osirian-myth Nile-and-Philae-Aswan-temple winged-throne-light. Sits at the modifier-and-myth end of the grid, parallel to horus and thoth 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.

#cd525a
Original
#706b5a
Protanopia
#8f8457
Deuteranopia
#e03c56
Tritanopia
#6d6d6d
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).
AA Largeon White
4.24:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
4.95:1

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
##CD525A
Display P3
Display P3
color(display-p3 0.7465 0.3523 0.3650)
P3 has subtle headroomOKLCH chroma 0.156

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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