#331B20
Closest named color: Jet (#212529). oklch(25.6% 0.039 6.7), rgb(51, 27, 32).
Aa
White text reads best on this color (15.92:1).
About this color
#331B20 is a dark, muted red. In OKLCH its lightness is 26%, its chroma 0.039 and its hue 7°. 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 15.92:1.
| Hue family | Reds |
| Lightness | dark (26%) |
| Chroma | muted (0.039) |
| Temperature | warm |
| Nearest name | Jet (#212529) |
| Black text | 1.31:1 |
| White text | 15.92:1 |
Values
| HEX | #331B20 |
| RGB | rgb(51, 27, 32) |
| HSL | hsl(348, 31%, 15%) |
| OKLCH | oklch(25.6% 0.039 6.7) |
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 #331B20 | 15.92:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #331B20 | 1.31:1 | Fails | Lc 0.0 | Not readable |
| #331B20 text on white | 15.92:1 | AAA | Lc 102.8 | Preferred for body text |
| #331B20 text on black | 1.31:1 | 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
#F2E6E8
oklch(93.5% 0.013 5.8)
-
Step 200
200
#E9D3D6
oklch(88.6% 0.025 8.2)
-
Step 300
300
#DCB5BC
oklch(80.9% 0.046 6)
-
Step 400
400
#C98E99
oklch(70.8% 0.073 6.8)
-
Step 500
500
#BA7180
oklch(63.2% 0.094 6.8)
-
Step 600
600
#A55869
oklch(55.6% 0.102 6.9)
-
Step 700
700
#8D4858
oklch(49.1% 0.095 6.4)
-
Step 800
800
#733B48
oklch(42.7% 0.08 6.2)
-
Step 900
900
#5D333C
oklch(37.7% 0.062 6.7)
-
Step 950
950 (this color)
#331B20
oklch(25.6% 0.039 6.7)
#331B20 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) | #1F1F20 | 0.042 |
| Deuteranopia (no green cones) | #252420 | 0.039 |
| Tritanopia (no blue cones) | #37191D | 0.010 |
| Achromatopsia (no color) | #222222 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #331B20
#331B20
oklch(25.6% 0.039 6.7)
- #072926
#072926
oklch(25.6% 0.039 186.7)
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 #331B20, 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 0.047
- Chocolate Brown #411900 ΔE 0.053
- Dark #1B2431 ΔE 0.055
- Dark Maroon #3C0008 ΔE 0.062
- Deep Brown #410200 ΔE 0.064
- Oxford Blue #1B263B ΔE 0.065
- Eggplant #380835 ΔE 0.069
Use #331B20 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.