colors
Back to gallery

Smoldering Saturn Crimson

#b5232d
Notes

Smoldering Saturn Crimson (#B5232D) 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 (356°, 68%, 42%) 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
#b5232d
RGB
rgb(181, 35, 45)
HSL
hsl(356, 68%, 42%)
HWB
hwb(356 14% 29%)
OKLCH
oklch(50.4% 0.181 23.7)
P3
color(display-p3 0.6523 0.1951 0.1997)
HSV
hsv(356, 81%, 71%)
LAB
lab(39.95% 56.91 32.34)
LCH
lch(39.95% 65.46 29.61)
CMYK
cmyk(0%, 81%, 75%, 29%)

Etymology

Smoldering
adjective

The progressive participle of smolder, to burn slowly without flame. Used as a color word since the late nineteenth century for the deep reds and oranges of barely-flame coal — the warm saturated darks where the heat is internal rather than emitted. Sits in the bold-and-warm corner, slightly less luminous than burning and slightly less calm than rich.

Saturn
modifier

Latin Saturnus, Roman-god-of-time-and-sixth-planet. As a color modifier, saturn implies a Roman-god-of-time-and-ringed-sixth-planet quality, the visual register of Roman-Saturn-and-Cassini-rings hand-Roman-god-of-time-and-ringed-sixth-planet Roman-Saturn-and-Cassini-rings-and-Saturnalia saturn-and-Roman-god-of-time-and-ringed-planet surfaces under Roman-Saturn-and-Cassini-rings-and-Saturnalia Saturnalia-festival-and-ringed-gas-giant ringed-planet-light. Sits at the modifier-and-zodiac end of the grid, parallel to jupiter and neptune 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.

#b5232d
Original
#514a2c
Protanopia
#756927
Deuteranopia
#c70029
Tritanopia
#434343
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
6.48:1
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
3.24:1

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
##B5232D
Display P3
Display P3
color(display-p3 0.6523 0.1951 0.1997)
P3 has visible headroomOKLCH chroma 0.181

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

Canvas