#431B03
Closest named color: Chocolate Brown (#411900). oklch(27.7% 0.071 48), rgb(67, 27, 3).
Aa
White text reads best on this color (15.03:1).
About this color
#431B03 is a dark, moderately saturated brown. In OKLCH its lightness is 28%, its chroma 0.071 and its hue 48°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.008 away. White text reads best on it, at 15.03:1.
| Hue family | Browns |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.071) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.39:1 |
| White text | 15.03:1 |
Values
| HEX | #431B03 |
| RGB | rgb(67, 27, 3) |
| HSL | hsl(23, 91%, 14%) |
| OKLCH | oklch(27.7% 0.071 48) |
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 #431B03 | 15.03:1 | AAA | Lc -104.4 | Preferred for body text |
| Black text on #431B03 | 1.39:1 | Fails | Lc 0.0 | Not readable |
| #431B03 text on white | 15.03:1 | AAA | Lc 101.5 | Preferred for body text |
| #431B03 text on black | 1.39:1 | 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
#FCF3EF
oklch(97% 0.011 45.7)
-
Step 100
100
#F8E5DC
oklch(93.5% 0.024 47.1)
-
Step 200
200
#F4D1BF
oklch(88.6% 0.046 48.9)
-
Step 300
300
#EEB191
oklch(80.9% 0.084 48.8)
-
Step 400
400
#E38451
oklch(70.6% 0.134 47.8)
-
Step 500
500
#D96101
oklch(63.2% 0.172 47.9)
-
Step 600
600
#B75100
oklch(55.7% 0.151 48.1)
-
Step 700
700
#9B4300
oklch(49.2% 0.134 47.9)
-
Step 800
800
#803600
oklch(42.8% 0.117 47.8)
-
Step 900
900
#6B2C00
oklch(37.6% 0.103 47.9)
-
Step 950
950 (this color)
#431B03
oklch(27.7% 0.071 48)
#431B03 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) | #272101 | 0.063 |
| Deuteranopia (no green cones) | #302A02 | 0.058 |
| Tritanopia (no blue cones) | #4B1216 | 0.040 |
| Achromatopsia (no color) | #272727 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #431B03
#431B03
oklch(27.7% 0.071 48)
- #002D3D
#002D3D
oklch(27.7% 0.054 228)
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 #431B03, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.008
- Dark Brown #341C02 ΔE 0.034
- Mahogany #4A0100 ΔE 0.048
- Deep Brown #410200 ΔE 0.052
- Dark Maroon #3C0008 ΔE 0.067
- Jet #212529 ΔE 0.081
- Pakistan Green #283618 ΔE 0.089
- Burgundy #610023 ΔE 0.091
Use #431B03 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.