#331B1D
Closest named color: Dark Brown (#341C02). oklch(25.5% 0.038 14.7), rgb(51, 27, 29).
Aa
White text reads best on this color (15.96:1).
About this color
#331B1D is a dark, muted red. In OKLCH its lightness is 26%, its chroma 0.038 and its hue 15°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.041 away. White text reads best on it, at 15.96:1.
| Hue family | Reds |
| Lightness | dark (26%) |
| Chroma | muted (0.038) |
| Temperature | warm |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.31:1 |
| White text | 15.96:1 |
Values
| HEX | #331B1D |
| RGB | rgb(51, 27, 29) |
| HSL | hsl(355, 31%, 15%) |
| OKLCH | oklch(25.5% 0.038 14.7) |
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 #331B1D | 15.96:1 | AAA | Lc -105.4 | Preferred for body text |
| Black text on #331B1D | 1.31:1 | Fails | Lc 0.0 | Not readable |
| #331B1D text on white | 15.96:1 | AAA | Lc 102.8 | Preferred for body text |
| #331B1D 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
#F9F4F4
oklch(97.1% 0.005 17.2)
-
Step 100
100
#F2E6E7
oklch(93.5% 0.013 11.6)
-
Step 200
200
#E9D3D4
oklch(88.5% 0.025 14.5)
-
Step 300
300
#DCB5B7
oklch(80.8% 0.045 14.7)
-
Step 400
400
#CA8E92
oklch(70.7% 0.073 14.7)
-
Step 500
500
#BA7278
oklch(63.1% 0.091 14.6)
-
Step 600
600
#A65960
oklch(55.6% 0.101 15.1)
-
Step 700
700
#8E4950
oklch(49.2% 0.093 14.7)
-
Step 800
800
#733C41
oklch(42.7% 0.077 15.1)
-
Step 900
900
#5D3437
oklch(37.7% 0.059 15.6)
-
Step 950
950 (this color)
#331B1D
oklch(25.5% 0.038 14.7)
#331B1D 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) | #1F1F1D | 0.042 |
| Deuteranopia (no green cones) | #25241D | 0.040 |
| Tritanopia (no blue cones) | #37181C | 0.011 |
| Achromatopsia (no color) | #222222 | 0.038 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #331B1D
#331B1D
oklch(25.5% 0.038 14.7)
- #062928
#062928
oklch(25.6% 0.039 192.2)
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 #331B1D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.041
- Jet #212529 ΔE 0.045
- Chocolate Brown #411900 ΔE 0.048
- Dark #1B2431 ΔE 0.057
- Dark Maroon #3C0008 ΔE 0.061
- Deep Brown #410200 ΔE 0.061
- Oxford Blue #1B263B ΔE 0.068
- Mahogany #4A0100 ΔE 0.068
Use #331B1D 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.