#5B181D
Closest named color: Claret (#680018). oklch(32.2% 0.097 20.4), rgb(91, 24, 29).
Aa
White text reads best on this color (13.18:1).
About this color
#5B181D is a dark, moderately saturated red. In OKLCH its lightness is 32%, its chroma 0.097 and its hue 20°. Its hue sits on the warm side of the wheel. The nearest named color is Claret (#680018), ΔE 0.035 away. White text reads best on it, at 13.18:1.
| Hue family | Reds |
| Lightness | dark (32%) |
| Chroma | moderately saturated (0.097) |
| Temperature | warm |
| Nearest name | Claret (#680018) |
| Black text | 1.59:1 |
| White text | 13.18:1 |
Values
| HEX | #5B181D |
| RGB | rgb(91, 24, 29) |
| HSL | hsl(356, 58%, 23%) |
| OKLCH | oklch(32.2% 0.097 20.4) |
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 #5B181D | 13.18:1 | AAA | Lc -102.1 | Preferred for body text |
| Black text on #5B181D | 1.59:1 | Fails | Lc 0.0 | Not readable |
| #5B181D text on white | 13.18:1 | AAA | Lc 98.7 | Preferred for body text |
| #5B181D text on black | 1.59:1 | 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
#FFF2F1
oklch(97.1% 0.014 22.8)
-
Step 100
100
#FFE2E1
oklch(93.6% 0.032 20.1)
-
Step 200
200
#FFCAC8
oklch(88.5% 0.061 20.9)
-
Step 300
300
#FFA4A3
oklch(80.9% 0.108 20.4)
-
Step 400
400
#FF676E
oklch(70.7% 0.185 20.4)
-
Step 500
500
#F82748
oklch(63.2% 0.236 20.4)
-
Step 600
600
#D70036
oklch(55.6% 0.223 20.4)
-
Step 700
700
#B6002C
oklch(49.1% 0.197 20.5)
-
Step 800
800
#970023
oklch(42.8% 0.172 20.4)
-
Step 900
900
#7F001C
oklch(37.7% 0.152 20.3)
-
Step 950
950 (this color)
#5B181D
oklch(32.2% 0.097 20.4)
#5B181D 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) | #2A271D | 0.106 |
| Deuteranopia (no green cones) | #3B351B | 0.097 |
| Tritanopia (no blue cones) | #64071A | 0.026 |
| Achromatopsia (no color) | #303030 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B181D
#5B181D
oklch(32.2% 0.097 20.4)
- #003B3E
#003B3E
oklch(32% 0.054 200.4)
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 #5B181D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Claret #680018 ΔE 0.035
- Burgundy #610023 ΔE 0.036
- Reddy Brown #6E1005 ΔE 0.046
- Blood #770001 ΔE 0.063
- Mahogany #4A0100 ΔE 0.066
- Wine Red #7B0323 ΔE 0.070
- Chocolate Brown #411900 ΔE 0.071
- Merlot #730039 ΔE 0.074
Use #5B181D 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.