#310F02
Closest named color: Dark Brown (#341C02). oklch(22.2% 0.061 42.8), rgb(49, 15, 2).
Aa
White text reads best on this color (17.50:1).
About this color
#310F02 is a very dark, muted brown. In OKLCH its lightness is 22%, its chroma 0.061 and its hue 43°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.039 away. White text reads best on it, at 17.50:1.
| Hue family | Browns |
| Lightness | very dark (22%) |
| Chroma | muted (0.061) |
| Temperature | warm |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.19:1 |
| White text | 17.50:1 |
Values
| HEX | #310F02 |
| RGB | rgb(49, 15, 2) |
| HSL | hsl(17, 92%, 10%) |
| OKLCH | oklch(22.2% 0.061 42.8) |
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 #310F02 | 17.50:1 | AAA | Lc -106.3 | Preferred for body text |
| Black text on #310F02 | 1.19:1 | Fails | Lc 0.0 | Not readable |
| #310F02 text on white | 17.50:1 | AAA | Lc 104.0 | Preferred for body text |
| #310F02 text on black | 1.19:1 | 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
#FBF4F0
oklch(97.1% 0.009 52.1)
-
Step 100
100
#F7E6DF
oklch(93.7% 0.021 43.9)
-
Step 200
200
#F1D1C5
oklch(88.4% 0.04 41.7)
-
Step 300
300
#E9B29C
oklch(80.8% 0.071 42.8)
-
Step 400
400
#DC8865
oklch(70.7% 0.114 43.2)
-
Step 500
500
#D16739
oklch(63.2% 0.147 42.7)
-
Step 600
600
#BC4B0D
oklch(55.6% 0.159 42.9)
-
Step 700
700
#A13C00
oklch(49.1% 0.146 42.8)
-
Step 800
800
#833206
oklch(42.7% 0.122 43)
-
Step 900
900
#6A2D11
oklch(37.8% 0.096 42.9)
-
Step 950
950 (this color)
#310F02
oklch(22.2% 0.061 42.8)
#310F02 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) | #191501 | 0.058 |
| Deuteranopia (no green cones) | #211C01 | 0.052 |
| Tritanopia (no blue cones) | #37070C | 0.030 |
| Achromatopsia (no color) | #191919 | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #310F02
#310F02
oklch(22.2% 0.061 42.8)
- #001F29
#001F29
oklch(22.2% 0.041 223)
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 #310F02, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.039
- Deep Brown #410200 ΔE 0.041
- Dark Maroon #3C0008 ΔE 0.042
- Chocolate Brown #411900 ΔE 0.050
- Mahogany #4A0100 ΔE 0.060
- Very Dark Brown #1D0200 ΔE 0.071
- Jet #212529 ΔE 0.080
- Dark Plum #3F012C ΔE 0.091
Use #310F02 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.