#863B37
Closest named color: Red Brown (#8B2E16). oklch(45.1% 0.104 25.2), rgb(134, 59, 55).
Aa
White text reads best on this color (7.79:1).
About this color
#863B37 is a medium-dark, moderately saturated red. In OKLCH its lightness is 45%, its chroma 0.104 and its hue 25°. Its hue sits on the warm side of the wheel. The nearest named color is Red Brown (#8B2E16), ΔE 0.037 away. White text reads best on it, at 7.79:1.
| Hue family | Reds |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.104) |
| Temperature | warm |
| Nearest name | Red Brown (#8B2E16) |
| Black text | 2.69:1 |
| White text | 7.79:1 |
Values
| HEX | #863B37 |
| RGB | rgb(134, 59, 55) |
| HSL | hsl(3, 42%, 37%) |
| OKLCH | oklch(45.1% 0.104 25.2) |
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 #863B37 | 7.79:1 | AAA | Lc -91.3 | Preferred for body text |
| Black text on #863B37 | 2.69:1 | Fails | Lc 17.5 | Dividers and decoration only |
| #863B37 text on white | 7.79:1 | AAA | Lc 86.6 | Fine for body text |
| #863B37 text on black | 2.69:1 | Fails | Lc -15.5 | 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
#FBF3F3
oklch(97% 0.009 17.3)
-
Step 100
100
#F6E6E4
oklch(93.7% 0.018 26.1)
-
Step 200
200
#EFD1CE
oklch(88.5% 0.034 24.6)
-
Step 300
300
#E6B2AD
oklch(80.9% 0.061 24.8)
-
Step 400
400
#D78882
oklch(70.7% 0.098 24.6)
-
Step 500
500
#CA6962
oklch(63.2% 0.124 25.5)
-
Step 600
600
#B54E49
oklch(55.6% 0.135 25.2)
-
Step 700
700
#9B3E3A
oklch(49% 0.126 25.3)
-
Step 800
800 (this color)
#863B37
oklch(45.1% 0.104 25.2)
-
Step 900
900
#662E2B
oklch(37.7% 0.081 24.8)
-
Step 950
950
#3C1C19
oklch(27.1% 0.051 26.5)
#863B37 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) | #4D4836 | 0.110 |
| Deuteranopia (no green cones) | #605835 | 0.101 |
| Tritanopia (no blue cones) | #922E3A | 0.034 |
| Achromatopsia (no color) | #525252 | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #863B37
#863B37
oklch(45.1% 0.104 25.2)
- #00626A
#00626A
oklch(45.3% 0.077 204.6)
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 #863B37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Brown #8B2E16 ΔE 0.037
- Brownish Purple #76424E ΔE 0.043
- Rust Brown #8B3103 ΔE 0.045
- Brown Red #922B05 ΔE 0.048
- Saddle Brown #8B4513 ΔE 0.052
- Auburn #9B2226 ΔE 0.053
- Brick #A03623 ΔE 0.054
- Brown #A52A2A ΔE 0.063
Use #863B37 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.