#59317B
Closest named color: Dark Slate Blue (#483D8B). oklch(40% 0.124 306.6), rgb(89, 49, 123).
Aa
White text reads best on this color (9.76:1).
About this color
#59317B is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.124 and its hue 307°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.047 away. White text reads best on it, at 9.76:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.124) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.15:1 |
| White text | 9.76:1 |
Values
| HEX | #59317B |
| RGB | rgb(89, 49, 123) |
| HSL | hsl(272, 43%, 34%) |
| OKLCH | oklch(40% 0.124 306.6) |
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 #59317B | 9.76:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #59317B | 2.15:1 | Fails | Lc 11.7 | Not readable |
| #59317B text on white | 9.76:1 | AAA | Lc 92.3 | Preferred for body text |
| #59317B text on black | 2.15:1 | Fails | Lc -10.1 | 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
#F7F3FC
oklch(97% 0.013 306)
-
Step 100
100
#EEE6F8
oklch(93.6% 0.025 305.8)
-
Step 200
200
#E2D1F5
oklch(88.6% 0.052 306.6)
-
Step 300
300
#D0B1F0
oklch(80.9% 0.093 306.8)
-
Step 400
400
#B886E9
oklch(70.7% 0.148 306.2)
-
Step 500
500
#A763E2
oklch(63.1% 0.19 306.4)
-
Step 600
600
#9345CF
oklch(55.6% 0.206 306.8)
-
Step 700
700
#7D35B4
oklch(49.1% 0.193 306.4)
-
Step 800
800
#662E91
oklch(42.8% 0.158 306.8)
-
Step 900
900 (this color)
#59317B
oklch(40% 0.124 306.6)
-
Step 950
950
#301A44
oklch(27% 0.078 306)
#59317B 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) | #14427D | 0.102 |
| Deuteranopia (no green cones) | #244479 | 0.091 |
| Tritanopia (no blue cones) | #543F51 | 0.089 |
| Achromatopsia (no color) | #444444 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #59317B
#59317B
oklch(40% 0.124 306.6)
- #395100
#395100
oklch(40% 0.103 126.7)
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 #59317B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.047
- Rebecca Purple #663399 ΔE 0.055
- Blueberry #464196 ΔE 0.063
- Indigo #4B0082 ΔE 0.083
- Twilight #4E518B ΔE 0.083
- Grape Purple #5D1451 ΔE 0.086
- Royal Purple #4B006E ΔE 0.090
- Dusk #4E5481 ΔE 0.092
Use #59317B 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.