#331D21
Closest named color: Jet (#212529). oklch(26.1% 0.035 7.9), rgb(51, 29, 33).
Aa
White text reads best on this color (15.68:1).
About this color
#331D21 is a dark, muted red. In OKLCH its lightness is 26%, its chroma 0.035 and its hue 8°. Its hue sits on the warm side of the wheel. The nearest named color is Jet (#212529), ΔE 0.041 away. White text reads best on it, at 15.68:1.
| Hue family | Reds |
| Lightness | dark (26%) |
| Chroma | muted (0.035) |
| Temperature | warm |
| Nearest name | Jet (#212529) |
| Black text | 1.33:1 |
| White text | 15.68:1 |
Values
| HEX | #331D21 |
| RGB | rgb(51, 29, 33) |
| HSL | hsl(349, 28%, 16%) |
| OKLCH | oklch(26.1% 0.035 7.9) |
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 #331D21 | 15.68:1 | AAA | Lc -105.2 | Preferred for body text |
| Black text on #331D21 | 1.33:1 | Fails | Lc 0.0 | Not readable |
| #331D21 text on white | 15.68:1 | AAA | Lc 102.6 | Preferred for body text |
| #331D21 text on black | 1.33:1 | 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
#F2E7E8
oklch(93.7% 0.012 11)
-
Step 200
200
#E8D3D6
oklch(88.5% 0.024 7.8)
-
Step 300
300
#DAB6BB
oklch(80.9% 0.042 8.6)
-
Step 400
400
#C69099
oklch(70.8% 0.066 7.8)
-
Step 500
500
#B67480
oklch(63.2% 0.084 7.9)
-
Step 600
600
#A15B69
oklch(55.6% 0.093 7.7)
-
Step 700
700
#8A4B57
oklch(49.2% 0.086 8.5)
-
Step 800
800
#703E47
oklch(42.8% 0.071 8.9)
-
Step 900
900
#5B353C
oklch(37.8% 0.055 8.1)
-
Step 950
950 (this color)
#331D21
oklch(26.1% 0.035 7.9)
#331D21 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) | #212121 | 0.038 |
| Deuteranopia (no green cones) | #262521 | 0.036 |
| Tritanopia (no blue cones) | #371B1E | 0.010 |
| Achromatopsia (no color) | #232323 | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #331D21
#331D21
oklch(26.1% 0.035 7.9)
- #0D2A27
#0D2A27
oklch(26.2% 0.035 186.1)
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 #331D21, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.041
- Dark Brown #341C02 ΔE 0.046
- Dark #1B2431 ΔE 0.052
- Chocolate Brown #411900 ΔE 0.052
- Oxford Blue #1B263B ΔE 0.062
- Space Cadet #2B2D42 ΔE 0.067
- Dark Maroon #3C0008 ΔE 0.067
- Deep Brown #410200 ΔE 0.067
Use #331D21 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.