#634427
Closest named color: Mud Brown (#60460F). oklch(41.4% 0.061 62.9), rgb(99, 68, 39).
Aa
White text reads best on this color (8.79:1).
About this color
#634427 is a dark, muted brown. In OKLCH its lightness is 41%, its chroma 0.061 and its hue 63°. 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 8.79:1.
| Hue family | Browns |
| Lightness | dark (41%) |
| Chroma | muted (0.061) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.38:1 |
| White text | 8.79:1 |
Values
| HEX | #634427 |
| RGB | rgb(99, 68, 39) |
| HSL | hsl(29, 43%, 27%) |
| OKLCH | oklch(41.4% 0.061 62.9) |
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 #634427 | 8.79:1 | AAA | Lc -94.5 | Preferred for body text |
| Black text on #634427 | 2.38:1 | Fails | Lc 14.0 | Not readable |
| #634427 text on white | 8.79:1 | AAA | Lc 90.0 | Fine for body text |
| #634427 text on black | 2.38:1 | Fails | Lc -12.3 | 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
#F8F5F2
oklch(97.2% 0.005 67.8)
-
Step 100
100
#EFE8E3
oklch(93.5% 0.01 58.2)
-
Step 200
200
#E3D7CC
oklch(88.6% 0.02 65.1)
-
Step 300
300
#D2BCAA
oklch(80.9% 0.035 61.6)
-
Step 400
400
#BB997C
oklch(70.7% 0.057 62.2)
-
Step 500
500
#A9805B
oklch(63.1% 0.072 63)
-
Step 600
600
#946941
oklch(55.6% 0.078 63)
-
Step 700
700
#7E5732
oklch(49% 0.073 63.2)
-
Step 800
800 (this color)
#634427
oklch(41.4% 0.061 62.9)
-
Step 900
900
#543C27
oklch(37.8% 0.047 61.8)
-
Step 950
950
#312317
oklch(26.9% 0.03 61.6)
#634427 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) | #4E4625 | 0.039 |
| Deuteranopia (no green cones) | #554D27 | 0.036 |
| Tritanopia (no blue cones) | #6C3D3D | 0.047 |
| Achromatopsia (no color) | #4A4A4A | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #634427
#634427
oklch(41.4% 0.061 62.9)
- #2C4F6A
#2C4F6A
oklch(41.4% 0.061 243.3)
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 #634427, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.027
- Purple Brown #673A3F ΔE 0.053
- Green Brown #544E03 ΔE 0.057
- Olive Brown #645403 ΔE 0.062
- Milk Chocolate #7F4E1E ΔE 0.064
- Chestnut #742802 ΔE 0.069
- Medium Brown #7F5112 ΔE 0.071
- Brownish Purple #76424E ΔE 0.072
Use #634427 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.