#531B17
Closest named color: Chocolate Brown (#411900). oklch(30.9% 0.085 27.2), rgb(83, 27, 23).
Aa
White text reads best on this color (13.66:1).
About this color
#531B17 is a dark, moderately saturated red. In OKLCH its lightness is 31%, its chroma 0.085 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.051 away. White text reads best on it, at 13.66:1.
| Hue family | Reds |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.085) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.53:1 |
| White text | 13.66:1 |
Values
| HEX | #531B17 |
| RGB | rgb(83, 27, 23) |
| HSL | hsl(4, 57%, 21%) |
| OKLCH | oklch(30.9% 0.085 27.2) |
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 #531B17 | 13.66:1 | AAA | Lc -102.8 | Preferred for body text |
| Black text on #531B17 | 1.53:1 | Fails | Lc 0.0 | Not readable |
| #531B17 text on white | 13.66:1 | AAA | Lc 99.6 | Preferred for body text |
| #531B17 text on black | 1.53:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FDE3DF
oklch(93.6% 0.029 28.1)
-
Step 200
200
#FCCCC5
oklch(88.5% 0.056 27.9)
-
Step 300
300
#FBA89D
oklch(81% 0.1 27.8)
-
Step 400
400
#F47468
oklch(70.8% 0.16 27.3)
-
Step 500
500
#EC453E
oklch(63.2% 0.205 27.2)
-
Step 600
600
#D70C19
oklch(55.6% 0.223 27.2)
-
Step 700
700
#B70011
oklch(49% 0.2 27.1)
-
Step 800
800
#97040E
oklch(42.7% 0.172 27.1)
-
Step 900
900
#791614
oklch(37.7% 0.134 27.3)
-
Step 950
950 (this color)
#531B17
oklch(30.9% 0.085 27.2)
#531B17 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) | #2A2616 | 0.089 |
| Deuteranopia (no green cones) | #383215 | 0.082 |
| Tritanopia (no blue cones) | #5C0F1A | 0.028 |
| Achromatopsia (no color) | #2E2E2E | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #531B17
#531B17
oklch(30.9% 0.085 27.2)
- #00373E
#00373E
oklch(30.8% 0.053 208.6)
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 #531B17, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.051
- Burgundy #610023 ΔE 0.052
- Claret #680018 ΔE 0.053
- Mahogany #4A0100 ΔE 0.055
- Reddy Brown #6E1005 ΔE 0.059
- Deep Brown #410200 ΔE 0.072
- Dark Brown #341C02 ΔE 0.077
- Blood #770001 ΔE 0.079
Use #531B17 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.