#635E39
Closest named color: Mud (#735C12). oklch(47.7% 0.055 101.6), rgb(99, 94, 57).
Aa
White text reads best on this color (6.58:1).
About this color
#635E39 is a medium-dark, muted brown. In OKLCH its lightness is 48%, its chroma 0.055 and its hue 102°. Its hue sits on the warm side of the wheel. The nearest named color is Mud (#735C12), ΔE 0.040 away. White text reads best on it, at 6.58:1.
| Hue family | Browns |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.055) |
| Temperature | warm |
| Nearest name | Mud (#735C12) |
| Black text | 3.19:1 |
| White text | 6.58:1 |
Values
| HEX | #635E39 |
| RGB | rgb(99, 94, 57) |
| HSL | hsl(53, 27%, 31%) |
| OKLCH | oklch(47.7% 0.055 101.6) |
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 #635E39 | 6.58:1 | AA | Lc -87.6 | Fine for body text |
| Black text on #635E39 | 3.19:1 | AA large text | Lc 21.5 | Dividers and decoration only |
| #635E39 text on white | 6.58:1 | AA | Lc 82.6 | Fine for body text |
| #635E39 text on black | 3.19:1 | AA large text | Lc -19.3 | Dividers and decoration only |
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 700.
-
Step 50
50
#F6F5F3
oklch(97% 0.003 84.6)
-
Step 100
100
#EBEAE4
oklch(93.6% 0.008 98.9)
-
Step 200
200
#DBDACF
oklch(88.6% 0.015 102.5)
-
Step 300
300
#C4C1AE
oklch(80.8% 0.026 99.6)
-
Step 400
400
#A6A284
oklch(70.8% 0.042 101.1)
-
Step 500
500
#908B65
oklch(63.1% 0.054 101.5)
-
Step 600
600
#7A754C
oklch(55.6% 0.059 102.1)
-
Step 700
700 (this color)
#635E39
oklch(47.7% 0.055 101.6)
-
Step 800
800
#545032
oklch(42.7% 0.046 101.6)
-
Step 900
900
#45422C
oklch(37.6% 0.035 101.3)
-
Step 950
950
#29271A
oklch(27.1% 0.023 100.4)
#635E39 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) | #645C36 | 0.006 |
| Deuteranopia (no green cones) | #665E3A | 0.005 |
| Tritanopia (no blue cones) | #695955 | 0.050 |
| Achromatopsia (no color) | #5D5D5D | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #635E39
#635E39
oklch(47.7% 0.055 101.6)
- #57597B
#57597B
oklch(47.6% 0.055 281.5)
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 #635E39, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud #735C12 ΔE 0.040
- Dark Moss Green #606C38 ΔE 0.043
- Greeny Brown #696006 ΔE 0.045
- Camo Green #526525 ΔE 0.046
- Olive Brown #645403 ΔE 0.047
- Dark Olive Green #556B2F ΔE 0.050
- Mud Green #606602 ΔE 0.058
- Army Green #4B5D16 ΔE 0.058
Use #635E39 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.