#635B45
Closest named color: Mud (#735C12). oklch(47.3% 0.035 90.4), rgb(99, 91, 69).
Aa
White text reads best on this color (6.74:1).
About this color
#635B45 is a medium-dark, muted brown. In OKLCH its lightness is 47%, its chroma 0.035 and its hue 90°. Its hue sits on the warm side of the wheel. The nearest named color is Mud (#735C12), ΔE 0.058 away. White text reads best on it, at 6.74:1.
| Hue family | Browns |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.035) |
| Temperature | warm |
| Nearest name | Mud (#735C12) |
| Black text | 3.11:1 |
| White text | 6.74:1 |
Values
| HEX | #635B45 |
| RGB | rgb(99, 91, 69) |
| HSL | hsl(44, 18%, 33%) |
| OKLCH | oklch(47.3% 0.035 90.4) |
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 #635B45 | 6.74:1 | AA | Lc -88.3 | Fine for body text |
| Black text on #635B45 | 3.11:1 | AA large text | Lc 20.8 | Dividers and decoration only |
| #635B45 text on white | 6.74:1 | AA | Lc 83.3 | Fine for body text |
| #635B45 text on black | 3.11:1 | AA large text | Lc -18.7 | 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
#F6F5F4
oklch(97.1% 0.002 67.8)
-
Step 100
100
#EBEAE6
oklch(93.7% 0.005 95.1)
-
Step 200
200
#DBD9D2
oklch(88.5% 0.01 93.6)
-
Step 300
300
#C5C0B5
oklch(80.9% 0.016 86.4)
-
Step 400
400
#A7A08E
oklch(70.7% 0.027 89.3)
-
Step 500
500
#918972
oklch(63.1% 0.034 91.1)
-
Step 600
600
#7C735A
oklch(55.7% 0.038 90.6)
-
Step 700
700 (this color)
#635B45
oklch(47.3% 0.035 90.4)
-
Step 800
800
#554F3D
oklch(42.8% 0.029 91.8)
-
Step 900
900
#464134
oklch(37.6% 0.022 89.5)
-
Step 950
950
#29261F
oklch(26.9% 0.013 87.6)
#635B45 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) | #605A44 | 0.006 |
| Deuteranopia (no green cones) | #625C46 | 0.003 |
| Tritanopia (no blue cones) | #685755 | 0.033 |
| Achromatopsia (no color) | #5B5B5B | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #635B45
#635B45
oklch(47.3% 0.035 90.4)
- #545B70
#545B70
oklch(47.3% 0.035 270.6)
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 #635B45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud #735C12 ΔE 0.058
- Dim Gray #696969 ΔE 0.060
- Dark Moss Green #606C38 ΔE 0.060
- Olive Brown #645403 ΔE 0.061
- Milk Chocolate #7F4E1E ΔE 0.062
- Dark Taupe #7F684E ΔE 0.063
- Cocoa #875F42 ΔE 0.064
- Medium Brown #7F5112 ΔE 0.065
Use #635B45 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.