#57277D
Closest named color: Dark Slate Blue (#483D8B). oklch(38.4% 0.141 306.5), rgb(87, 39, 125).
Aa
White text reads best on this color (10.54:1).
About this color
#57277D is a dark, vivid purple. In OKLCH its lightness is 38%, its chroma 0.141 and its hue 306°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.058 away. White text reads best on it, at 10.54:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | vivid (0.141) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.99:1 |
| White text | 10.54:1 |
Values
| HEX | #57277D |
| RGB | rgb(87, 39, 125) |
| HSL | hsl(273, 52%, 32%) |
| OKLCH | oklch(38.4% 0.141 306.5) |
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 #57277D | 10.54:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #57277D | 1.99:1 | Fails | Lc 10.0 | Not readable |
| #57277D text on white | 10.54:1 | AAA | Lc 93.9 | Preferred for body text |
| #57277D text on black | 1.99:1 | Fails | Lc -8.7 | 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
#F8F3FD
oklch(97.1% 0.014 308.3)
-
Step 100
100
#EFE5FA
oklch(93.6% 0.03 307.1)
-
Step 200
200
#E3D0F8
oklch(88.6% 0.058 306.7)
-
Step 300
300
#D2AFF7
oklch(81% 0.106 306.4)
-
Step 400
400
#BC81F2
oklch(70.8% 0.168 306.7)
-
Step 500
500
#AB5AEE
oklch(63% 0.217 306.3)
-
Step 600
600
#9738DC
oklch(55.6% 0.235 306.4)
-
Step 700
700
#8128BF
oklch(49.1% 0.219 306.4)
-
Step 800
800
#69249A
oklch(42.7% 0.181 306.7)
-
Step 900
900 (this color)
#57277D
oklch(38.4% 0.141 306.5)
-
Step 950
950
#321748
oklch(27% 0.09 306.8)
#57277D 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) | #003D80 | 0.116 |
| Deuteranopia (no green cones) | #113F7B | 0.110 |
| Tritanopia (no blue cones) | #513A4E | 0.102 |
| Achromatopsia (no color) | #3F3F3F | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57277D
#57277D
oklch(38.4% 0.141 306.5)
- #364C00
#364C00
oklch(38.4% 0.098 126.2)
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 #57277D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.058
- Rebecca Purple #663399 ΔE 0.060
- Indigo #4B0082 ΔE 0.061
- Royal Purple #4B006E ΔE 0.069
- Blueberry #464196 ΔE 0.074
- Grape Purple #5D1451 ΔE 0.081
- Chrysanthemum #560BAD ΔE 0.085
- Imperial Purple #480CA8 ΔE 0.087
Use #57277D 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.