#331B04
Closest named color: Dark Brown (#341C02). oklch(25% 0.052 61.3), rgb(51, 27, 4).
Aa
White text reads best on this color (16.16:1).
About this color
#331B04 is a very dark, muted brown. In OKLCH its lightness is 25%, its chroma 0.052 and its hue 61°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.005 away. White text reads best on it, at 16.16:1.
| Hue family | Browns |
| Lightness | very dark (25%) |
| Chroma | muted (0.052) |
| Temperature | warm |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.29:1 |
| White text | 16.16:1 |
Values
| HEX | #331B04 |
| RGB | rgb(51, 27, 4) |
| HSL | hsl(29, 85%, 11%) |
| OKLCH | oklch(25% 0.052 61.3) |
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 #331B04 | 16.16:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #331B04 | 1.29:1 | Fails | Lc 0.0 | Not readable |
| #331B04 text on white | 16.16:1 | AAA | Lc 103.0 | Preferred for body text |
| #331B04 text on black | 1.29:1 | 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
#FAF4F0
oklch(97.1% 0.008 56.3)
-
Step 100
100
#F3E7DE
oklch(93.5% 0.018 59.5)
-
Step 200
200
#EAD5C3
oklch(88.5% 0.034 63)
-
Step 300
300
#DEB899
oklch(80.8% 0.061 61)
-
Step 400
400
#CD925F
oklch(70.7% 0.098 61.1)
-
Step 500
500
#BF762D
oklch(63.2% 0.125 61.5)
-
Step 600
600
#A85E00
oklch(55.6% 0.129 60.9)
-
Step 700
700
#8E4F00
oklch(49.2% 0.114 61.3)
-
Step 800
800
#754000
oklch(42.8% 0.099 61.2)
-
Step 900
900
#603608
oklch(37.7% 0.082 61.5)
-
Step 950
950 (this color)
#331B04
oklch(25% 0.052 61.3)
#331B04 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) | #221D02 | 0.038 |
| Deuteranopia (no green cones) | #282304 | 0.034 |
| Tritanopia (no blue cones) | #391616 | 0.037 |
| Achromatopsia (no color) | #212121 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #331B04
#331B04
oklch(25% 0.052 61.3)
- #052438
#052438
oklch(24.9% 0.052 241.5)
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 #331B04, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.005
- Chocolate Brown #411900 ΔE 0.031
- Deep Brown #410200 ΔE 0.058
- Jet #212529 ΔE 0.062
- Dark Maroon #3C0008 ΔE 0.066
- Mahogany #4A0100 ΔE 0.067
- Dark #1B2431 ΔE 0.079
- Pakistan Green #283618 ΔE 0.085
Use #331B04 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.