#57336A
Closest named color: Dark Slate Blue (#483D8B). oklch(39% 0.098 312.9), rgb(87, 51, 106).
Aa
White text reads best on this color (10.06:1).
About this color
#57336A is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.098 and its hue 313°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.063 away. White text reads best on it, at 10.06:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.098) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.08:1 |
| White text | 10.06:1 |
Values
| HEX | #57336A |
| RGB | rgb(87, 51, 106) |
| HSL | hsl(279, 35%, 31%) |
| OKLCH | oklch(39% 0.098 312.9) |
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 #57336A | 10.06:1 | AAA | Lc -97.3 | Preferred for body text |
| Black text on #57336A | 2.08:1 | Fails | Lc 10.8 | Not readable |
| #57336A text on white | 10.06:1 | AAA | Lc 93.1 | Preferred for body text |
| #57336A text on black | 2.08:1 | Fails | Lc -9.4 | 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
#F8F4FA
oklch(97.2% 0.009 314.8)
-
Step 100
100
#EFE6F4
oklch(93.6% 0.021 313.8)
-
Step 200
200
#E3D2ED
oklch(88.6% 0.041 313.2)
-
Step 300
300
#D1B3E3
oklch(80.8% 0.074 312.7)
-
Step 400
400
#BA8AD5
oklch(70.7% 0.118 312.8)
-
Step 500
500
#A96BCA
oklch(63.2% 0.151 312.9)
-
Step 600
600
#9450B6
oklch(55.6% 0.164 313.1)
-
Step 700
700
#7E409D
oklch(49.1% 0.153 312.9)
-
Step 800
800
#66367F
oklch(42.7% 0.125 312.6)
-
Step 900
900 (this color)
#57336A
oklch(39% 0.098 312.9)
-
Step 950
950
#311C3C
oklch(27% 0.063 313.1)
#57336A 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) | #26406C | 0.083 |
| Deuteranopia (no green cones) | #314369 | 0.074 |
| Tritanopia (no blue cones) | #553C49 | 0.068 |
| Achromatopsia (no color) | #424242 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57336A
#57336A
oklch(39% 0.098 312.9)
- #2F4F0F
#2F4F0F
oklch(38.9% 0.098 132.8)
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 #57336A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.063
- Grape Purple #5D1451 ΔE 0.071
- Blueberry #464196 ΔE 0.082
- Rebecca Purple #663399 ΔE 0.083
- Purple Brown #673A3F ΔE 0.088
- Twilight #4E518B ΔE 0.089
- Rich Purple #720058 ΔE 0.090
- Velvet #750851 ΔE 0.091
Use #57336A 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.