#59377B
Closest named color: Dark Slate Blue (#483D8B). oklch(41% 0.114 305), rgb(89, 55, 123).
Aa
White text reads best on this color (9.30:1).
About this color
#59377B is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.114 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.041 away. White text reads best on it, at 9.30:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.114) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.25:1 |
| White text | 9.30:1 |
Values
| HEX | #59377B |
| RGB | rgb(89, 55, 123) |
| HSL | hsl(270, 38%, 35%) |
| OKLCH | oklch(41% 0.114 305) |
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 #59377B | 9.30:1 | AAA | Lc -95.6 | Preferred for body text |
| Black text on #59377B | 2.25:1 | Fails | Lc 12.8 | Not readable |
| #59377B text on white | 9.30:1 | AAA | Lc 91.2 | Preferred for body text |
| #59377B text on black | 2.25:1 | Fails | Lc -11.1 | 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 800.
-
Step 50
50
#F7F4FA
oklch(97.1% 0.009 308.4)
-
Step 100
100
#EDE7F5
oklch(93.7% 0.02 305.3)
-
Step 200
200
#DFD3ED
oklch(88.4% 0.037 306.4)
-
Step 300
300
#CAB6E4
oklch(80.8% 0.067 304.7)
-
Step 400
400
#B08FD6
oklch(70.6% 0.107 305.1)
-
Step 500
500
#9D72CB
oklch(63.1% 0.136 305.1)
-
Step 600
600
#8859B8
oklch(55.7% 0.148 304.9)
-
Step 700
700
#73489E
oklch(49% 0.138 305)
-
Step 800
800 (this color)
#59377B
oklch(41% 0.114 305)
-
Step 900
900
#4D3467
oklch(37.8% 0.088 305.2)
-
Step 950
950
#2D1F3C
oklch(27.1% 0.055 305.3)
#59377B 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) | #21467D | 0.087 |
| Deuteranopia (no green cones) | #2B4779 | 0.080 |
| Tritanopia (no blue cones) | #534353 | 0.084 |
| Achromatopsia (no color) | #474747 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #59377B
#59377B
oklch(41% 0.114 305)
- #3E5300
#3E5300
oklch(41% 0.103 124.7)
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 #59377B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.041
- Rebecca Purple #663399 ΔE 0.056
- Blueberry #464196 ΔE 0.057
- Twilight #4E518B ΔE 0.070
- Dusk #4E5481 ΔE 0.078
- Dusty Grape #545775 ΔE 0.092
- Cobalt #1E488F ΔE 0.092
- Grape Purple #5D1451 ΔE 0.094
Use #59377B 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.