#311503
Closest named color: Dark Brown (#341C02). oklch(23.3% 0.054 51.8), rgb(49, 21, 3).
Aa
White text reads best on this color (16.94:1).
About this color
#311503 is a very dark, muted brown. In OKLCH its lightness is 23%, its chroma 0.054 and its hue 52°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Brown (#341C02), ΔE 0.023 away. White text reads best on it, at 16.94:1.
| Hue family | Browns |
| Lightness | very dark (23%) |
| Chroma | muted (0.054) |
| Temperature | warm |
| Nearest name | Dark Brown (#341C02) |
| Black text | 1.23:1 |
| White text | 16.94:1 |
Values
| HEX | #311503 |
| RGB | rgb(49, 21, 3) |
| HSL | hsl(23, 88%, 10%) |
| OKLCH | oklch(23.3% 0.054 51.8) |
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 #311503 | 16.94:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #311503 | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #311503 text on white | 16.94:1 | AAA | Lc 103.6 | Preferred for body text |
| #311503 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
#FAF4F0
oklch(97.1% 0.008 56.3)
-
Step 100
100
#F5E7DF
oklch(93.7% 0.019 52)
-
Step 200
200
#EDD3C4
oklch(88.4% 0.036 52)
-
Step 300
300
#E3B69B
oklch(81% 0.064 52.5)
-
Step 400
400
#D38E63
oklch(70.7% 0.102 52.3)
-
Step 500
500
#C67035
oklch(63.1% 0.131 52.3)
-
Step 600
600
#B25603
oklch(55.7% 0.142 51.9)
-
Step 700
700
#964700
oklch(49% 0.126 51.9)
-
Step 800
800
#7C3A01
oklch(42.8% 0.109 52.1)
-
Step 900
900
#64320F
oklch(37.6% 0.085 51.4)
-
Step 950
950 (this color)
#311503
oklch(23.3% 0.054 51.8)
#311503 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) | #1D1902 | 0.046 |
| Deuteranopia (no green cones) | #241F03 | 0.041 |
| Tritanopia (no blue cones) | #370F11 | 0.033 |
| Achromatopsia (no color) | #1D1D1D | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #311503
#311503
oklch(23.3% 0.054 51.8)
- #002130
#002130
oklch(23.3% 0.048 232.2)
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 #311503, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Brown #341C02 ΔE 0.023
- Chocolate Brown #411900 ΔE 0.041
- Deep Brown #410200 ΔE 0.049
- Dark Maroon #3C0008 ΔE 0.053
- Mahogany #4A0100 ΔE 0.063
- Jet #212529 ΔE 0.069
- Dark #1B2431 ΔE 0.084
- Very Dark Brown #1D0200 ΔE 0.084
Use #311503 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.