#5B1B3F
Closest named color: Grape Purple (#5D1451). oklch(33.6% 0.102 349.3), rgb(91, 27, 63).
Aa
White text reads best on this color (12.54:1).
About this color
#5B1B3F is a dark, moderately saturated red. In OKLCH its lightness is 34%, its chroma 0.102 and its hue 349°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.037 away. White text reads best on it, at 12.54:1.
| Hue family | Reds |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.102) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.67:1 |
| White text | 12.54:1 |
Values
| HEX | #5B1B3F |
| RGB | rgb(91, 27, 63) |
| HSL | hsl(326, 54%, 23%) |
| OKLCH | oklch(33.6% 0.102 349.3) |
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 #5B1B3F | 12.54:1 | AAA | Lc -101.3 | Preferred for body text |
| Black text on #5B1B3F | 1.67:1 | Fails | Lc 0.0 | Not readable |
| #5B1B3F text on white | 12.54:1 | AAA | Lc 97.8 | Preferred for body text |
| #5B1B3F text on black | 1.67:1 | 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
#F6E4EC
oklch(93.6% 0.022 348.8)
-
Step 200
200
#F0CEDD
oklch(88.4% 0.043 349.6)
-
Step 300
300
#E7ADC8
oklch(80.9% 0.076 349.4)
-
Step 400
400
#D97FAC
oklch(70.6% 0.123 349.4)
-
Step 500
500
#CC5C98
oklch(63.1% 0.157 349.2)
-
Step 600
600
#B73E82
oklch(55.5% 0.171 349.4)
-
Step 700
700
#9D2F6E
oklch(49% 0.158 349.3)
-
Step 800
800
#80295A
oklch(42.8% 0.131 349.3)
-
Step 900
900 (this color)
#5B1B3F
oklch(33.6% 0.102 349.3)
-
Step 950
950
#3D172B
oklch(27% 0.066 349.6)
#5B1B3F 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) | #242C40 | 0.112 |
| Deuteranopia (no green cones) | #36383D | 0.102 |
| Tritanopia (no blue cones) | #62182A | 0.039 |
| Achromatopsia (no color) | #333333 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B1B3F
#5B1B3F
oklch(33.6% 0.102 349.3)
- #004231
#004231
oklch(33.7% 0.067 169)
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 #5B1B3F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.037
- Burgundy #610023 ΔE 0.051
- Merlot #730039 ΔE 0.054
- Plum Purple #4E0550 ΔE 0.064
- Velvet #750851 ΔE 0.065
- Deep Violet #490648 ΔE 0.066
- Claret #680018 ΔE 0.066
- Rich Purple #720058 ΔE 0.070
Use #5B1B3F 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.