#57457D
Closest named color: Twilight (#4E518B). oklch(43.5% 0.092 297.3), rgb(87, 69, 125).
Aa
White text reads best on this color (8.22:1).
About this color
#57457D is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.092 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.038 away. White text reads best on it, at 8.22:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.092) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.55:1 |
| White text | 8.22:1 |
Values
| HEX | #57457D |
| RGB | rgb(87, 69, 125) |
| HSL | hsl(259, 29%, 38%) |
| OKLCH | oklch(43.5% 0.092 297.3) |
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 #57457D | 8.22:1 | AAA | Lc -93.0 | Preferred for body text |
| Black text on #57457D | 2.55:1 | Fails | Lc 15.7 | Dividers and decoration only |
| #57457D text on white | 8.22:1 | AAA | Lc 88.3 | Fine for body text |
| #57457D text on black | 2.55:1 | Fails | Lc -13.8 | 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#EBE8F3
oklch(93.7% 0.015 298.6)
-
Step 200
200
#DBD5EB
oklch(88.4% 0.031 298.2)
-
Step 300
300
#C4BAE0
oklch(80.9% 0.054 297.2)
-
Step 400
400
#A695D0
oklch(70.6% 0.087 297.4)
-
Step 500
500
#917AC3
oklch(63% 0.11 297.7)
-
Step 600
600
#7B62B0
oklch(55.5% 0.12 297.1)
-
Step 700
700
#685197
oklch(49% 0.111 297.3)
-
Step 800
800 (this color)
#57457D
oklch(43.5% 0.092 297.3)
-
Step 900
900
#463963
oklch(37.8% 0.071 297.1)
-
Step 950
950
#29213A
oklch(26.9% 0.047 297.9)
#57457D 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) | #354F7F | 0.055 |
| Deuteranopia (no green cones) | #384E7C | 0.051 |
| Tritanopia (no blue cones) | #4F4F5B | 0.073 |
| Achromatopsia (no color) | #4F4F4F | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57457D
#57457D
oklch(43.5% 0.092 297.3)
- #4E5711
#4E5711
oklch(43.5% 0.091 116.8)
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 #57457D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.038
- Dusk #4E5481 ΔE 0.042
- Dark Slate Blue #483D8B ΔE 0.044
- Blueberry #464196 ΔE 0.053
- Dusty Grape #545775 ΔE 0.057
- YInMn Blue #415A77 ΔE 0.070
- Rebecca Purple #663399 ΔE 0.070
- Denim Blue #3B5B92 ΔE 0.071
Use #57457D 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.