#311403
Closest named color: Dark Brown (#341C02). oklch(23.1% 0.055 49.8), rgb(49, 20, 3).
Aa
White text reads best on this color (17.04:1).
About this color
#311403 is a very dark, muted brown. In OKLCH its lightness is 23%, its chroma 0.055 and its hue 50°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.026 away. White text reads best on it, at 17.04:1.
| Hue family | Browns |
| Lightness | very dark (23%) |
| Chroma | muted (0.055) |
| Temperature | warm |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.23:1 |
| White text | 17.04:1 |
Values
| HEX | #311403 |
| RGB | rgb(49, 20, 3) |
| HSL | hsl(22, 88%, 10%) |
| OKLCH | oklch(23.1% 0.055 49.8) |
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 #311403 | 17.04:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #311403 | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #311403 text on white | 17.04:1 | AAA | Lc 103.7 | Preferred for body text |
| #311403 text on black | 1.23:1 | 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
#F5E7DF
oklch(93.7% 0.019 52)
-
Step 200
200
#EED3C4
oklch(88.5% 0.037 51)
-
Step 300
300
#E4B59C
oklch(80.9% 0.065 49.4)
-
Step 400
400
#D58D64
oklch(70.7% 0.104 50.1)
-
Step 500
500
#C86E37
oklch(63.1% 0.133 49.7)
-
Step 600
600
#B45407
oklch(55.7% 0.145 49.8)
-
Step 700
700
#994500
oklch(49.2% 0.131 49.6)
-
Step 800
800
#7D3803
oklch(42.6% 0.111 49.6)
-
Step 900
900
#653110
oklch(37.6% 0.087 49.3)
-
Step 950
950 (this color)
#311403
oklch(23.1% 0.055 49.8)
#311403 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) | #1C1802 | 0.048 |
| Deuteranopia (no green cones) | #231F03 | 0.045 |
| Tritanopia (no blue cones) | #370E10 | 0.032 |
| Achromatopsia (no color) | #1C1C1C | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #311403
#311403
oklch(23.1% 0.055 49.8)
- #00212E
#00212E
oklch(23.2% 0.045 228.5)
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 #311403, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.026
- Chocolate Brown #411900 ΔE 0.042
- Deep Brown #410200 ΔE 0.047
- Dark Maroon #3C0008 ΔE 0.051
- Mahogany #4A0100 ΔE 0.062
- Jet #212529 ΔE 0.071
- Very Dark Brown #1D0200 ΔE 0.081
- Dark #1B2431 ΔE 0.085
Use #311403 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.