#634B29
Closest named color: Mud Brown (#60460F). oklch(43% 0.059 74.7), rgb(99, 75, 41).
Aa
White text reads best on this color (8.17:1).
About this color
#634B29 is a dark, muted brown. In OKLCH its lightness is 43%, its chroma 0.059 and its hue 75°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.027 away. White text reads best on it, at 8.17:1.
| Hue family | Browns |
| Lightness | dark (43%) |
| Chroma | muted (0.059) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.56:1 |
| White text | 8.17:1 |
Values
| HEX | #634B29 |
| RGB | rgb(99, 75, 41) |
| HSL | hsl(35, 41%, 27%) |
| OKLCH | oklch(43% 0.059 74.7) |
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 #634B29 | 8.17:1 | AAA | Lc -92.8 | Preferred for body text |
| Black text on #634B29 | 2.56:1 | Fails | Lc 15.8 | Dividers and decoration only |
| #634B29 text on white | 8.17:1 | AAA | Lc 88.2 | Fine for body text |
| #634B29 text on black | 2.56:1 | Fails | Lc -14.0 | 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 800.
-
Step 50
50
#F7F5F2
oklch(97.1% 0.005 78.3)
-
Step 100
100
#EEE9E3
oklch(93.6% 0.01 72.7)
-
Step 200
200
#E1D8CC
oklch(88.6% 0.019 75.3)
-
Step 300
300
#CEBEA9
oklch(80.9% 0.034 74.7)
-
Step 400
400
#B59C7A
oklch(70.6% 0.055 75.2)
-
Step 500
500
#A38358
oklch(63% 0.071 74.1)
-
Step 600
600
#8E6D3D
oklch(55.7% 0.077 75.4)
-
Step 700
700
#795B30
oklch(49.3% 0.071 74.7)
-
Step 800
800 (this color)
#634B29
oklch(43% 0.059 74.7)
-
Step 900
900
#503E25
oklch(37.7% 0.046 74.8)
-
Step 950
950
#2F2416
oklch(26.9% 0.029 72.8)
#634B29 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) | #544C26 | 0.028 |
| Deuteranopia (no green cones) | #5A512A | 0.023 |
| Tritanopia (no blue cones) | #6B4543 | 0.049 |
| Achromatopsia (no color) | #4F4F4F | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #634B29
#634B29
oklch(43% 0.059 74.7)
- #395170
#395170
oklch(42.9% 0.06 255.2)
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 #634B29, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.027
- Olive Brown #645403 ΔE 0.046
- Green Brown #544E03 ΔE 0.048
- Milk Chocolate #7F4E1E ΔE 0.054
- Medium Brown #7F5112 ΔE 0.059
- Mud #735C12 ΔE 0.067
- Purple Brown #673A3F ΔE 0.068
- Army Green #4B5D16 ΔE 0.075
Use #634B29 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.