#581B42
Closest named color: Grape Purple (#5D1451). oklch(33.3% 0.102 344.7), rgb(88, 27, 66).
Aa
White text reads best on this color (12.72:1).
About this color
#581B42 is a dark, moderately saturated purple. In OKLCH its lightness is 33%, its chroma 0.102 and its hue 345°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.032 away. White text reads best on it, at 12.72:1.
| Hue family | Purples |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.102) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.65:1 |
| White text | 12.72:1 |
Values
| HEX | #581B42 |
| RGB | rgb(88, 27, 66) |
| HSL | hsl(322, 53%, 23%) |
| OKLCH | oklch(33.3% 0.102 344.7) |
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 #581B42 | 12.72:1 | AAA | Lc -101.6 | Preferred for body text |
| Black text on #581B42 | 1.65:1 | Fails | Lc 0.0 | Not readable |
| #581B42 text on white | 12.72:1 | AAA | Lc 98.1 | Preferred for body text |
| #581B42 text on black | 1.65:1 | 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
#FBF3F7
oklch(97.1% 0.01 345.4)
-
Step 100
100
#F5E4ED
oklch(93.5% 0.022 344.2)
-
Step 200
200
#EFCFE0
oklch(88.6% 0.042 344.7)
-
Step 300
300
#E5ADCC
oklch(80.8% 0.077 344.6)
-
Step 400
400
#D680B2
oklch(70.6% 0.122 344.9)
-
Step 500
500
#C95D9F
oklch(63.1% 0.157 344.9)
-
Step 600
600
#B4408A
oklch(55.6% 0.17 344.8)
-
Step 700
700
#9A3175
oklch(49% 0.158 344.7)
-
Step 800
800
#7D2A5F
oklch(42.6% 0.13 344.8)
-
Step 900
900 (this color)
#581B42
oklch(33.3% 0.102 344.7)
-
Step 950
950
#3C182E
oklch(27.1% 0.065 344.7)
#581B42 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) | #212C43 | 0.111 |
| Deuteranopia (no green cones) | #333641 | 0.097 |
| Tritanopia (no blue cones) | #5E1A2B | 0.043 |
| Achromatopsia (no color) | #333333 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #581B42
#581B42
oklch(33.3% 0.102 344.7)
- #00412D
#00412D
oklch(33.3% 0.07 165.2)
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 #581B42, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.032
- Plum Purple #4E0550 ΔE 0.056
- Burgundy #610023 ΔE 0.057
- Deep Violet #490648 ΔE 0.058
- Merlot #730039 ΔE 0.061
- Velvet #750851 ΔE 0.068
- Eggplant Purple #430541 ΔE 0.069
- Rich Purple #720058 ΔE 0.071
Use #581B42 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.