#591B37
Closest named color: Burgundy (#610023). oklch(33% 0.096 355.8), rgb(89, 27, 55).
Aa
White text reads best on this color (12.83:1).
About this color
#591B37 is a dark, moderately saturated red. In OKLCH its lightness is 33%, its chroma 0.096 and its hue 356°. Its hue sits on the warm side of the wheel. The nearest named color is Burgundy (#610023), ΔE 0.043 away. White text reads best on it, at 12.83:1.
| Hue family | Reds |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.096) |
| Temperature | warm |
| Nearest name | Burgundy (#610023) |
| Black text | 1.63:1 |
| White text | 12.83:1 |
Values
| HEX | #591B37 |
| RGB | rgb(89, 27, 55) |
| HSL | hsl(333, 53%, 23%) |
| OKLCH | oklch(33% 0.096 355.8) |
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 #591B37 | 12.83:1 | AAA | Lc -101.7 | Preferred for body text |
| Black text on #591B37 | 1.63:1 | Fails | Lc 0.0 | Not readable |
| #591B37 text on white | 12.83:1 | AAA | Lc 98.3 | Preferred for body text |
| #591B37 text on black | 1.63:1 | 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 900.
-
Step 50
50
#FBF3F6
oklch(97.1% 0.009 352.4)
-
Step 100
100
#F6E4EA
oklch(93.5% 0.021 355.2)
-
Step 200
200
#F0CFDA
oklch(88.5% 0.04 355.8)
-
Step 300
300
#E7AEC2
oklch(80.9% 0.071 355.9)
-
Step 400
400
#D981A3
oklch(70.7% 0.115 355.8)
-
Step 500
500
#CC5F8D
oklch(63.1% 0.147 355.6)
-
Step 600
600
#B74277
oklch(55.6% 0.16 355.5)
-
Step 700
700
#9E3364
oklch(49.2% 0.149 355.8)
-
Step 800
800
#802B51
oklch(42.7% 0.123 356)
-
Step 900
900 (this color)
#591B37
oklch(33% 0.096 355.8)
-
Step 950
950
#3D1827
oklch(27% 0.061 356.5)
#591B37 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) | #252B38 | 0.107 |
| Deuteranopia (no green cones) | #363636 | 0.096 |
| Tritanopia (no blue cones) | #601626 | 0.031 |
| Achromatopsia (no color) | #323232 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #591B37
#591B37
oklch(33% 0.096 355.8)
- #003F34
#003F34
oklch(32.9% 0.061 176.4)
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 #591B37, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burgundy #610023 ΔE 0.043
- Grape Purple #5D1451 ΔE 0.051
- Claret #680018 ΔE 0.057
- Merlot #730039 ΔE 0.059
- Deep Violet #490648 ΔE 0.071
- Plum Purple #4E0550 ΔE 0.073
- Bordeaux #7B002C ΔE 0.075
- Velvet #750851 ΔE 0.076
Use #591B37 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.