#87310F
Closest named color: Rust Brown (#8B3103). oklch(43.3% 0.126 39.5), rgb(135, 49, 15).
Aa
White text reads best on this color (8.48:1).
About this color
#87310F is a dark, moderately saturated red. In OKLCH its lightness is 43%, its chroma 0.126 and its hue 39°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Brown (#8B3103), ΔE 0.010 away. White text reads best on it, at 8.48:1.
| Hue family | Reds |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.126) |
| Temperature | warm |
| Nearest name | Rust Brown (#8B3103) |
| Black text | 2.47:1 |
| White text | 8.48:1 |
Values
| HEX | #87310F |
| RGB | rgb(135, 49, 15) |
| HSL | hsl(17, 80%, 29%) |
| OKLCH | oklch(43.3% 0.126 39.5) |
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 #87310F | 8.48:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #87310F | 2.47:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #87310F text on white | 8.48:1 | AAA | Lc 88.4 | Fine for body text |
| #87310F text on black | 2.47:1 | Fails | Lc -13.8 | 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
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F7E5DF
oklch(93.5% 0.021 39.4)
-
Step 200
200
#F2D1C5
oklch(88.5% 0.041 41)
-
Step 300
300
#EBB19D
oklch(80.9% 0.074 39.9)
-
Step 400
400
#DF8668
oklch(70.8% 0.118 39.3)
-
Step 500
500
#D3643D
oklch(63.1% 0.15 39.5)
-
Step 600
600
#BE4718
oklch(55.5% 0.163 39.3)
-
Step 700
700
#A43807
oklch(49.1% 0.152 39.5)
-
Step 800
800 (this color)
#87310F
oklch(43.3% 0.126 39.5)
-
Step 900
900
#6B2B14
oklch(37.6% 0.098 39.4)
-
Step 950
950
#3F1A0D
oklch(27% 0.062 39.6)
#87310F 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) | #4A4109 | 0.124 |
| Deuteranopia (no green cones) | #5F540A | 0.113 |
| Tritanopia (no blue cones) | #951A2B | 0.057 |
| Achromatopsia (no color) | #4D4D4D | 0.126 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #87310F
#87310F
oklch(43.3% 0.126 39.5)
- #005A6E
#005A6E
oklch(43.2% 0.079 219.7)
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 #87310F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Brown #8B3103 ΔE 0.010
- Red Brown #8B2E16 ΔE 0.012
- Brown Red #922B05 ΔE 0.023
- Brick Red #8F1402 ΔE 0.041
- Saddle Brown #8B4513 ΔE 0.047
- Chestnut #742802 ΔE 0.048
- Burnt Red #9F2305 ΔE 0.049
- Auburn #9B2226 ΔE 0.052
Use #87310F 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.