#813537
Closest named color: Red Brown (#8B2E16). oklch(43.4% 0.105 20.9), rgb(129, 53, 55).
Aa
White text reads best on this color (8.40:1).
About this color
#813537 is a dark, moderately saturated red. In OKLCH its lightness is 43%, its chroma 0.105 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Red Brown (#8B2E16), ΔE 0.039 away. White text reads best on it, at 8.40:1.
| Hue family | Reds |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.105) |
| Temperature | warm |
| Nearest name | Red Brown (#8B2E16) |
| Black text | 2.49:1 |
| White text | 8.40:1 |
Values
| HEX | #813537 |
| RGB | rgb(129, 53, 55) |
| HSL | hsl(358, 42%, 36%) |
| OKLCH | oklch(43.4% 0.105 20.9) |
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 #813537 | 8.40:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #813537 | 2.49:1 | Fails | Lc 15.6 | Dividers and decoration only |
| #813537 text on white | 8.40:1 | AAA | Lc 88.4 | Fine for body text |
| #813537 text on black | 2.49:1 | 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
#FBF3F3
oklch(97% 0.009 17.3)
-
Step 100
100
#F6E5E5
oklch(93.5% 0.019 17.5)
-
Step 200
200
#EFD1CF
oklch(88.5% 0.034 22.4)
-
Step 300
300
#E6B1B0
oklch(80.8% 0.062 19.8)
-
Step 400
400
#D78786
oklch(70.6% 0.099 20.6)
-
Step 500
500
#CA6768
oklch(63% 0.126 20.7)
-
Step 600
600
#B64C4F
oklch(55.6% 0.138 21)
-
Step 700
700
#9C3D40
oklch(49.1% 0.127 21.2)
-
Step 800
800 (this color)
#813537
oklch(43.4% 0.105 20.9)
-
Step 900
900
#662D2E
oklch(37.6% 0.082 20.8)
-
Step 950
950
#3C1B1B
oklch(26.9% 0.052 21.1)
#813537 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) | #474337 | 0.113 |
| Deuteranopia (no green cones) | #5A5335 | 0.104 |
| Tritanopia (no blue cones) | #8D2836 | 0.031 |
| Achromatopsia (no color) | #4D4D4D | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #813537
#813537
oklch(43.4% 0.105 20.9)
- #005D62
#005D62
oklch(43.5% 0.074 201.2)
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 #813537, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Brown #8B2E16 ΔE 0.039
- Brownish Purple #76424E ΔE 0.041
- Rust Brown #8B3103 ΔE 0.050
- Purple Brown #673A3F ΔE 0.052
- Brown Red #922B05 ΔE 0.053
- Auburn #9B2226 ΔE 0.056
- Brick Red #8F1402 ΔE 0.061
- Chestnut #742802 ΔE 0.063
Use #813537 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.