#311203
Closest named color: Dark Brown (#341C02). oklch(22.7% 0.057 46.1), rgb(49, 18, 3).
Aa
White text reads best on this color (17.23:1).
About this color
#311203 is a very dark, muted brown. In OKLCH its lightness is 23%, its chroma 0.057 and its hue 46°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.032 away. White text reads best on it, at 17.23:1.
| Hue family | Browns |
| Lightness | very dark (23%) |
| Chroma | muted (0.057) |
| Temperature | warm |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.21:1 |
| White text | 17.23:1 |
Values
| HEX | #311203 |
| RGB | rgb(49, 18, 3) |
| HSL | hsl(20, 88%, 10%) |
| OKLCH | oklch(22.7% 0.057 46.1) |
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 #311203 | 17.23:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #311203 | 1.21:1 | Fails | Lc 0.0 | Not readable |
| #311203 text on white | 17.23:1 | AAA | Lc 103.8 | Preferred for body text |
| #311203 text on black | 1.21:1 | 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
#F6E6DF
oklch(93.6% 0.02 45.3)
-
Step 200
200
#EFD2C5
oklch(88.4% 0.037 45.6)
-
Step 300
300
#E6B49C
oklch(80.9% 0.067 46.9)
-
Step 400
400
#D88B66
oklch(70.8% 0.107 46.2)
-
Step 500
500
#CB6B3A
oklch(63% 0.137 46)
-
Step 600
600
#B7500F
oklch(55.6% 0.15 46)
-
Step 700
700
#9D4100
oklch(49.2% 0.138 46.2)
-
Step 800
800
#803607
oklch(42.8% 0.115 46.2)
-
Step 900
900
#673012
oklch(37.8% 0.089 46.4)
-
Step 950
950 (this color)
#311203
oklch(22.7% 0.057 46.1)
#311203 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) | #1B1702 | 0.052 |
| Deuteranopia (no green cones) | #221E03 | 0.048 |
| Tritanopia (no blue cones) | #370B0F | 0.032 |
| Achromatopsia (no color) | #1B1B1B | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #311203
#311203
oklch(22.7% 0.057 46.1)
- #00202C
#00202C
oklch(22.7% 0.044 227)
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 #311203, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.032
- Deep Brown #410200 ΔE 0.044
- Chocolate Brown #411900 ΔE 0.045
- Dark Maroon #3C0008 ΔE 0.046
- Mahogany #4A0100 ΔE 0.061
- Jet #212529 ΔE 0.074
- Very Dark Brown #1D0200 ΔE 0.077
- Dark #1B2431 ΔE 0.087
Use #311203 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.