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Erebine Rose

#420b08
Notes

Erebine Rose (#420B08) is a deep red with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (3°, 78%, 15%) places it in the highly saturated band at a dark lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. 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
#420b08
RGB
rgb(66, 11, 8)
HSL
hsl(3, 78%, 15%)
HWB
hwb(3 3% 74%)
OKLCH
oklch(25.2% 0.084 28.1)
P3
color(display-p3 0.2359 0.0614 0.0436)
HSV
hsv(3, 88%, 26%)
LAB
lab(12.06% 25.95 15.42)
LCH
lch(12.06% 30.19 30.71)
CMYK
cmyk(0%, 83%, 88%, 74%)

Etymology

Erebine
adjective

Greek Erebine, of Erebus — adjectival form of Erebus, the primordial deity of darkness in Hesiod's Theogony. As a color modifier, erebine implies the deepest primordial-darkness of pre-cosmic chaos, with literary-cosmological register. Sits at the deepest-and-coolest end of the grid, parallel to Stygian and Cimmerian.

Rose
noun

The Latin rosa, the Greek rhodon, the Persian gul — every European language has a different name for the same flower and the same color. Rose covers the spectrum from blush to fuchsia depending on the cultivar, but in pigment shorthand it means a cool, slightly bluish red — the inside of a damask petal, the dye that washes out of madder root.

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.

#420b08
Original
#1c1807
Protanopia
#292406
Deuteranopia
#4a000b
Tritanopia
#161616
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).
AAAon White
16.37:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
1.28:1

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
##420B08
Display P3
Display P3
color(display-p3 0.2359 0.0614 0.0436)
P3 has subtle headroomOKLCH chroma 0.084

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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