#311C03
Closest named color: Dark Brown (#341C02). oklch(24.9% 0.05 67.6), rgb(49, 28, 3).
Aa
White text reads best on this color (16.17:1).
About this color
#311C03 is a very dark, muted brown. In OKLCH its lightness is 25%, its chroma 0.050 and its hue 68°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.007 away. White text reads best on it, at 16.17:1.
| Hue family | Browns |
| Lightness | very dark (25%) |
| Chroma | muted (0.050) |
| Temperature | warm |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.29:1 |
| White text | 16.17:1 |
Values
| HEX | #311C03 |
| RGB | rgb(49, 28, 3) |
| HSL | hsl(33, 88%, 10%) |
| OKLCH | oklch(24.9% 0.05 67.6) |
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 #311C03 | 16.17:1 | AAA | Lc -105.5 | Preferred for body text |
| Black text on #311C03 | 1.29:1 | Fails | Lc 0.0 | Not readable |
| #311C03 text on white | 16.17:1 | AAA | Lc 103.0 | Preferred for body text |
| #311C03 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
#F9F5F0
oklch(97.2% 0.008 73.7)
-
Step 100
100
#F2E8DE
oklch(93.6% 0.017 67.6)
-
Step 200
200
#E8D6C3
oklch(88.6% 0.032 68.9)
-
Step 300
300
#DBBA98
oklch(80.9% 0.059 67.7)
-
Step 400
400
#C8955D
oklch(70.7% 0.095 67.8)
-
Step 500
500
#BA7929
oklch(63.1% 0.122 67.1)
-
Step 600
600
#A26300
oklch(55.7% 0.123 67.4)
-
Step 700
700
#885300
oklch(49.1% 0.108 68.1)
-
Step 800
800
#704300
oklch(42.6% 0.094 67.6)
-
Step 900
900
#5D3805
oklch(37.7% 0.08 67.5)
-
Step 950
950 (this color)
#311C03
oklch(24.9% 0.05 67.6)
#311C03 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) | #231E01 | 0.031 |
| Deuteranopia (no green cones) | #282303 | 0.029 |
| Tritanopia (no blue cones) | #361717 | 0.039 |
| Achromatopsia (no color) | #212121 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #311C03
#311C03
oklch(24.9% 0.05 67.6)
- #0B2338
#0B2338
oklch(24.9% 0.05 247.8)
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 #311C03, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.007
- Chocolate Brown #411900 ΔE 0.036
- Jet #212529 ΔE 0.061
- Deep Brown #410200 ΔE 0.063
- Dark Maroon #3C0008 ΔE 0.071
- Mahogany #4A0100 ΔE 0.072
- Dark #1B2431 ΔE 0.078
- Pakistan Green #283618 ΔE 0.082
Use #311C03 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.