#635540
Closest named color: Milk Chocolate (#7F4E1E). oklch(45.7% 0.037 77.7), rgb(99, 85, 64).
Aa
White text reads best on this color (7.23:1).
About this color
#635540 is a medium-dark, muted brown. In OKLCH its lightness is 46%, its chroma 0.037 and its hue 78°. Its hue sits on the warm side of the wheel. The nearest named color is Milk Chocolate (#7F4E1E), ΔE 0.057 away. White text reads best on it, at 7.23:1.
| Hue family | Browns |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.037) |
| Temperature | warm |
| Nearest name | Milk Chocolate (#7F4E1E) |
| Black text | 2.90:1 |
| White text | 7.23:1 |
Values
| HEX | #635540 |
| RGB | rgb(99, 85, 64) |
| HSL | hsl(36, 21%, 32%) |
| OKLCH | oklch(45.7% 0.037 77.7) |
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 #635540 | 7.23:1 | AAA | Lc -90.0 | Fine for body text |
| Black text on #635540 | 2.90:1 | Fails | Lc 18.9 | Dividers and decoration only |
| #635540 text on white | 7.23:1 | AAA | Lc 85.1 | Fine for body text |
| #635540 text on black | 2.90:1 | Fails | Lc -16.9 | 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 800.
-
Step 50
50
#F6F5F3
oklch(97% 0.003 84.6)
-
Step 100
100
#ECE9E5
oklch(93.5% 0.006 75.4)
-
Step 200
200
#DED8D0
oklch(88.5% 0.013 75.4)
-
Step 300
300
#C9BFB1
oklch(80.9% 0.022 76.5)
-
Step 400
400
#AD9E89
oklch(70.6% 0.034 76.3)
-
Step 500
500
#99876C
oklch(63.2% 0.044 77.8)
-
Step 600
600
#837053
oklch(55.6% 0.048 78)
-
Step 700
700
#6F5E44
oklch(49.2% 0.045 78)
-
Step 800
800 (this color)
#635540
oklch(45.7% 0.037 77.7)
-
Step 900
900
#4A4030
oklch(37.7% 0.029 79.3)
-
Step 950
950
#2B251C
oklch(26.8% 0.018 77.8)
#635540 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) | #5B553F | 0.014 |
| Deuteranopia (no green cones) | #5E5841 | 0.011 |
| Tritanopia (no blue cones) | #69514F | 0.032 |
| Achromatopsia (no color) | #575757 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #635540
#635540
oklch(45.7% 0.037 77.7)
- #4A586C
#4A586C
oklch(45.6% 0.037 257.3)
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 #635540, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Milk Chocolate #7F4E1E ΔE 0.057
- Olive Brown #645403 ΔE 0.058
- Mud Brown #60460F ΔE 0.060
- Medium Brown #7F5112 ΔE 0.062
- Mud #735C12 ΔE 0.062
- Green Brown #544E03 ΔE 0.069
- Greeny Brown #696006 ΔE 0.072
- Brownish Purple #76424E ΔE 0.072
Use #635540 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.