#873637
Closest named color: Red Brown (#8B2E16). oklch(44.5% 0.112 22), rgb(135, 54, 55).
Aa
White text reads best on this color (8.03:1).
About this color
#873637 is a dark, moderately saturated red. In OKLCH its lightness is 45%, its chroma 0.112 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Red Brown (#8B2E16), ΔE 0.035 away. White text reads best on it, at 8.03:1.
| Hue family | Reds |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.112) |
| Temperature | warm |
| Nearest name | Red Brown (#8B2E16) |
| Black text | 2.61:1 |
| White text | 8.03:1 |
Values
| HEX | #873637 |
| RGB | rgb(135, 54, 55) |
| HSL | hsl(359, 43%, 37%) |
| OKLCH | oklch(44.5% 0.112 22) |
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 #873637 | 8.03:1 | AAA | Lc -92.0 | Preferred for body text |
| Black text on #873637 | 2.61:1 | Fails | Lc 16.8 | Dividers and decoration only |
| #873637 text on white | 8.03:1 | AAA | Lc 87.2 | Fine for body text |
| #873637 text on black | 2.61:1 | Fails | Lc -14.9 | 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
#FBF3F3
oklch(97% 0.009 17.3)
-
Step 100
100
#F6E5E4
oklch(93.5% 0.019 21.6)
-
Step 200
200
#F0D0CE
oklch(88.4% 0.036 22.1)
-
Step 300
300
#E8B1AE
oklch(81% 0.065 22.2)
-
Step 400
400
#DA8683
oklch(70.7% 0.104 22.2)
-
Step 500
500
#CE6564
oklch(63.2% 0.134 22.2)
-
Step 600
600
#B9494B
oklch(55.6% 0.145 22)
-
Step 700
700
#9F3A3C
oklch(49.1% 0.135 22.4)
-
Step 800
800 (this color)
#873637
oklch(44.5% 0.112 22)
-
Step 900
900
#682C2C
oklch(37.7% 0.087 22.1)
-
Step 950
950
#3D1A1A
oklch(26.9% 0.055 21.4)
#873637 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) | #4A4636 | 0.119 |
| Deuteranopia (no green cones) | #5E5735 | 0.111 |
| Tritanopia (no blue cones) | #942837 | 0.033 |
| Achromatopsia (no color) | #505050 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #873637
#873637
oklch(44.5% 0.112 22)
- #006066
#006066
oklch(44.5% 0.076 202.3)
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 #873637, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Brown #8B2E16 ΔE 0.035
- Rust Brown #8B3103 ΔE 0.046
- Brownish Purple #76424E ΔE 0.046
- Auburn #9B2226 ΔE 0.047
- Brown Red #922B05 ΔE 0.047
- Brick #A03623 ΔE 0.056
- Brick Red #8F1402 ΔE 0.059
- Brown #A52A2A ΔE 0.060
Use #873637 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.