#88370A
Closest named color: Rust Brown (#8B3103). oklch(44.3% 0.122 44), rgb(136, 55, 10).
Aa
White text reads best on this color (8.08:1).
About this color
#88370A is a dark, moderately saturated brown. In OKLCH its lightness is 44%, its chroma 0.122 and its hue 44°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Brown (#8B3103), ΔE 0.012 away. White text reads best on it, at 8.08:1.
| Hue family | Browns |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.122) |
| Temperature | warm |
| Nearest name | Rust Brown (#8B3103) |
| Black text | 2.59:1 |
| White text | 8.08:1 |
Values
| HEX | #88370A |
| RGB | rgb(136, 55, 10) |
| HSL | hsl(21, 86%, 29%) |
| OKLCH | oklch(44.3% 0.122 44) |
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 #88370A | 8.08:1 | AAA | Lc -92.0 | Preferred for body text |
| Black text on #88370A | 2.59:1 | Fails | Lc 16.7 | Dividers and decoration only |
| #88370A text on white | 8.08:1 | AAA | Lc 87.3 | Fine for body text |
| #88370A text on black | 2.59:1 | Fails | Lc -14.8 | Not readable |
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
#FBF4F0
oklch(97.1% 0.009 52.1)
-
Step 100
100
#F7E6DF
oklch(93.7% 0.021 43.9)
-
Step 200
200
#F1D1C4
oklch(88.4% 0.04 43.4)
-
Step 300
300
#E9B29B
oklch(80.8% 0.072 43.8)
-
Step 400
400
#DC8864
oklch(70.7% 0.115 43.7)
-
Step 500
500
#D06737
oklch(63% 0.147 43.6)
-
Step 600
600
#BB4C07
oklch(55.6% 0.158 44.2)
-
Step 700
700
#9F3E00
oklch(49.1% 0.142 44.2)
-
Step 800
800 (this color)
#88370A
oklch(44.3% 0.122 44)
-
Step 900
900
#692D10
oklch(37.6% 0.095 43.7)
-
Step 950
950
#3E1B0B
oklch(27% 0.061 43.8)
#88370A 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) | #4E4401 | 0.117 |
| Deuteranopia (no green cones) | #625706 | 0.106 |
| Tritanopia (no blue cones) | #96232F | 0.062 |
| Achromatopsia (no color) | #505050 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #88370A
#88370A
oklch(44.3% 0.122 44)
- #005D75
#005D75
oklch(44.4% 0.083 223.3)
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 #88370A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Brown #8B3103 ΔE 0.012
- Red Brown #8B2E16 ΔE 0.022
- Brown Red #922B05 ΔE 0.027
- Saddle Brown #8B4513 ΔE 0.033
- Burnt Red #9F2305 ΔE 0.052
- Russet #A13905 ΔE 0.052
- Milk Chocolate #7F4E1E ΔE 0.053
- Brick Red #8F1402 ΔE 0.054
Use #88370A 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.