#331B23
Closest named color: Jet (#212529). oklch(25.8% 0.04 358.8), rgb(51, 27, 35).
Aa
White text reads best on this color (15.88:1).
About this color
#331B23 is a dark, muted red. In OKLCH its lightness is 26%, its chroma 0.040 and its hue 359°. Its hue sits on the warm side of the wheel. The nearest named color is Jet (#212529), ΔE 0.044 away. White text reads best on it, at 15.88:1.
| Hue family | Reds |
| Lightness | dark (26%) |
| Chroma | muted (0.040) |
| Temperature | warm |
| Nearest name | Jet (#212529) |
| Black text | 1.32:1 |
| White text | 15.88:1 |
Values
| HEX | #331B23 |
| RGB | rgb(51, 27, 35) |
| HSL | hsl(340, 31%, 15%) |
| OKLCH | oklch(25.8% 0.04 358.8) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #331B23 | 15.88:1 | AAA | Lc -105.3 | Preferred for body text |
| Black text on #331B23 | 1.32:1 | Fails | Lc 0.0 | Not readable |
| #331B23 text on white | 15.88:1 | AAA | Lc 102.7 | Preferred for body text |
| #331B23 text on black | 1.32:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#F9F4F5
oklch(97.1% 0.006 3.3)
-
Step 100
100
#F2E6E9
oklch(93.5% 0.014 0.3)
-
Step 200
200
#E9D2D9
oklch(88.5% 0.027 357.3)
-
Step 300
300
#DBB5C0
oklch(81% 0.046 358.9)
-
Step 400
400
#C88DA0
oklch(70.7% 0.076 358.2)
-
Step 500
500
#B97088
oklch(63.1% 0.097 359.1)
-
Step 600
600
#A45772
oklch(55.6% 0.106 358.8)
-
Step 700
700
#8C4760
oklch(49.1% 0.098 358.3)
-
Step 800
800
#723B4E
oklch(42.7% 0.08 359)
-
Step 900
900
#5C3341
oklch(37.7% 0.062 358.6)
-
Step 950
950 (this color)
#331B23
oklch(25.8% 0.04 358.8)
#331B23 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #1E2023 | 0.044 |
| Deuteranopia (no green cones) | #242422 | 0.041 |
| Tritanopia (no blue cones) | #371A1E | 0.012 |
| Achromatopsia (no color) | #222222 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #331B23
#331B23
oklch(25.8% 0.04 358.8)
- #082A24
#082A24
oklch(25.9% 0.04 179)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #331B23, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.044
- Dark Brown #341C02 ΔE 0.052
- Dark #1B2431 ΔE 0.053
- Chocolate Brown #411900 ΔE 0.057
- Oxford Blue #1B263B ΔE 0.062
- Eggplant #380835 ΔE 0.064
- Aubergine #3D0734 ΔE 0.064
- Dark Maroon #3C0008 ΔE 0.064
Use #331B23 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.