#63572B
Closest named color: Olive Brown (#645403). oklch(45.8% 0.064 94.4), rgb(99, 87, 43).
Aa
White text reads best on this color (7.17:1).
About this color
#63572B is a medium-dark, muted brown. In OKLCH its lightness is 46%, its chroma 0.064 and its hue 94°. Its hue sits on the warm side of the wheel. The nearest named color is Olive Brown (#645403), ΔE 0.028 away. White text reads best on it, at 7.17:1.
| Hue family | Browns |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.064) |
| Temperature | warm |
| Nearest name | Olive Brown (#645403) |
| Black text | 2.92:1 |
| White text | 7.17:1 |
Values
| HEX | #63572B |
| RGB | rgb(99, 87, 43) |
| HSL | hsl(47, 39%, 28%) |
| OKLCH | oklch(45.8% 0.064 94.4) |
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 #63572B | 7.17:1 | AAA | Lc -89.7 | Fine for body text |
| Black text on #63572B | 2.92:1 | Fails | Lc 19.2 | Dividers and decoration only |
| #63572B text on white | 7.17:1 | AAA | Lc 84.8 | Fine for body text |
| #63572B text on black | 2.92:1 | Fails | Lc -17.2 | 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
#F6F5F2
oklch(97% 0.004 91.4)
-
Step 100
100
#ECEAE2
oklch(93.6% 0.011 95.2)
-
Step 200
200
#DDD9CA
oklch(88.4% 0.021 94.5)
-
Step 300
300
#C8C1A6
oklch(80.9% 0.038 95.1)
-
Step 400
400
#ACA176
oklch(70.8% 0.06 95.5)
-
Step 500
500
#988952
oklch(63.1% 0.076 94.6)
-
Step 600
600
#837335
oklch(55.7% 0.084 95)
-
Step 700
700
#6F6028
oklch(49.1% 0.077 94.4)
-
Step 800
800 (this color)
#63572B
oklch(45.8% 0.064 94.4)
-
Step 900
900
#4A4121
oklch(37.6% 0.05 94.1)
-
Step 950
950
#2B2614
oklch(26.9% 0.031 94.4)
#63572B 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) | #5F5527 | 0.010 |
| Deuteranopia (no green cones) | #62592D | 0.006 |
| Tritanopia (no blue cones) | #6A514D | 0.059 |
| Achromatopsia (no color) | #575757 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #63572B
#63572B
oklch(45.8% 0.064 94.4)
- #4D557C
#4D557C
oklch(45.9% 0.064 274.7)
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 #63572B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Olive Brown #645403 ΔE 0.028
- Mud #735C12 ΔE 0.039
- Greeny Brown #696006 ΔE 0.044
- Green Brown #544E03 ΔE 0.049
- Mud Brown #60460F ΔE 0.050
- Medium Brown #7F5112 ΔE 0.050
- Camo Green #526525 ΔE 0.051
- Army Green #4B5D16 ΔE 0.052
Use #63572B 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.