#63451B
Closest named color: Mud Brown (#60460F). oklch(41.5% 0.071 72.6), rgb(99, 69, 27).
Aa
White text reads best on this color (8.75:1).
About this color
#63451B is a dark, moderately saturated brown. In OKLCH its lightness is 41%, its chroma 0.071 and its hue 73°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.013 away. White text reads best on it, at 8.75:1.
| Hue family | Browns |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.071) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.39:1 |
| White text | 8.75:1 |
Values
| HEX | #63451B |
| RGB | rgb(99, 69, 27) |
| HSL | hsl(35, 57%, 25%) |
| OKLCH | oklch(41.5% 0.071 72.6) |
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 #63451B | 8.75:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #63451B | 2.39:1 | Fails | Lc 14.1 | Not readable |
| #63451B text on white | 8.75:1 | AAA | Lc 89.9 | Fine for body text |
| #63451B text on black | 2.39:1 | Fails | Lc -12.4 | 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 800.
-
Step 50
50
#F8F5F1
oklch(97.1% 0.006 75.4)
-
Step 100
100
#EFE9E1
oklch(93.7% 0.013 75.4)
-
Step 200
200
#E3D7C9
oklch(88.5% 0.023 71.8)
-
Step 300
300
#D1BDA4
oklch(80.9% 0.041 73.3)
-
Step 400
400
#BA9B73
oklch(70.8% 0.066 73.5)
-
Step 500
500
#A9814E
oklch(63.1% 0.084 72)
-
Step 600
600
#946A30
oklch(55.6% 0.092 72.6)
-
Step 700
700
#7E5823
oklch(49.1% 0.085 72.3)
-
Step 800
800 (this color)
#63451B
oklch(41.5% 0.071 72.6)
-
Step 900
900
#533D1F
oklch(37.7% 0.054 73.4)
-
Step 950
950
#312413
oklch(27.1% 0.034 73)
#63451B 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) | #504716 | 0.037 |
| Deuteranopia (no green cones) | #574E1C | 0.033 |
| Tritanopia (no blue cones) | #6C3D3C | 0.059 |
| Achromatopsia (no color) | #4B4B4B | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63451B
#63451B
oklch(41.5% 0.071 72.6)
- #2E4E71
#2E4E71
oklch(41.6% 0.07 251.8)
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 #63451B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.013
- Green Brown #544E03 ΔE 0.046
- Olive Brown #645403 ΔE 0.051
- Milk Chocolate #7F4E1E ΔE 0.062
- Medium Brown #7F5112 ΔE 0.066
- Purple Brown #673A3F ΔE 0.068
- Chestnut #742802 ΔE 0.072
- Mud #735C12 ΔE 0.077
Use #63451B 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.