#311B0B
Closest named color: Dark Brown (#341C02). oklch(24.8% 0.044 55.1), rgb(49, 27, 11).
Aa
White text reads best on this color (16.25:1).
About this color
#311B0B is a very dark, muted brown. In OKLCH its lightness is 25%, its chroma 0.044 and its hue 55°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.014 away. White text reads best on it, at 16.25:1.
| Hue family | Browns |
| Lightness | very dark (25%) |
| Chroma | muted (0.044) |
| Temperature | warm |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.29:1 |
| White text | 16.25:1 |
Values
| HEX | #311B0B |
| RGB | rgb(49, 27, 11) |
| HSL | hsl(25, 63%, 12%) |
| OKLCH | oklch(24.8% 0.044 55.1) |
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 #311B0B | 16.25:1 | AAA | Lc -105.6 | Preferred for body text |
| Black text on #311B0B | 1.29:1 | Fails | Lc 0.0 | Not readable |
| #311B0B text on white | 16.25:1 | AAA | Lc 103.1 | Preferred for body text |
| #311B0B 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
#F9F4F1
oklch(97% 0.007 53.4)
-
Step 100
100
#F2E7E1
oklch(93.5% 0.014 50.8)
-
Step 200
200
#E9D5C8
oklch(88.6% 0.028 55.3)
-
Step 300
300
#DCB8A1
oklch(80.8% 0.052 54.4)
-
Step 400
400
#C9936E
oklch(70.7% 0.083 55.4)
-
Step 500
500
#BA7747
oklch(63% 0.106 55.1)
-
Step 600
600
#A65F27
oklch(55.7% 0.115 55.3)
-
Step 700
700
#8E4E1A
oklch(49.2% 0.107 55.1)
-
Step 800
800
#734018
oklch(42.6% 0.088 55.2)
-
Step 900
900
#5D371A
oklch(37.7% 0.069 56)
-
Step 950
950 (this color)
#311B0B
oklch(24.8% 0.044 55.1)
#311B0B 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) | #211D09 | 0.035 |
| Deuteranopia (no green cones) | #27220B | 0.030 |
| Tritanopia (no blue cones) | #361617 | 0.030 |
| Achromatopsia (no color) | #202020 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #311B0B
#311B0B
oklch(24.8% 0.044 55.1)
- #082433
#082433
oklch(24.8% 0.044 235.9)
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 #311B0B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.014
- Chocolate Brown #411900 ΔE 0.036
- Jet #212529 ΔE 0.055
- Deep Brown #410200 ΔE 0.058
- Dark Maroon #3C0008 ΔE 0.064
- Mahogany #4A0100 ΔE 0.068
- Dark #1B2431 ΔE 0.071
- Rich Black #0D1B2A ΔE 0.084
Use #311B0B 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.