#57429B
Closest named color: Blueberry (#464196). oklch(44.9% 0.139 290.6), rgb(87, 66, 155).
Aa
White text reads best on this color (7.90:1).
About this color
#57429B is a dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.139 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.030 away. White text reads best on it, at 7.90:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.139) |
| Temperature | in between |
| Nearest name | Blueberry (#464196) |
| Black text | 2.65:1 |
| White text | 7.90:1 |
Values
| HEX | #57429B |
| RGB | rgb(87, 66, 155) |
| HSL | hsl(254, 40%, 43%) |
| OKLCH | oklch(44.9% 0.139 290.6) |
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 #57429B | 7.90:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #57429B | 2.65:1 | Fails | Lc 16.9 | Dividers and decoration only |
| #57429B text on white | 7.90:1 | AAA | Lc 87.1 | Fine for body text |
| #57429B text on black | 2.65:1 | Fails | Lc -15.0 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#E9E8F9
oklch(93.7% 0.023 288.7)
-
Step 200
200
#D8D5F6
oklch(88.6% 0.045 289.6)
-
Step 300
300
#C0B8F2
oklch(80.9% 0.081 290.8)
-
Step 400
400
#A191EB
oklch(70.7% 0.13 290.9)
-
Step 500
500
#8B73E5
oklch(63.1% 0.166 290.5)
-
Step 600
600
#7658D3
oklch(55.5% 0.181 290.5)
-
Step 700
700
#6448B7
oklch(49.2% 0.168 290.5)
-
Step 800
800 (this color)
#57429B
oklch(44.9% 0.139 290.6)
-
Step 900
900
#433476
oklch(37.7% 0.109 290.7)
-
Step 950
950
#271F45
oklch(27% 0.069 290.8)
#57429B 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) | #0F539E | 0.084 |
| Deuteranopia (no green cones) | #144F99 | 0.081 |
| Tritanopia (no blue cones) | #435568 | 0.113 |
| Achromatopsia (no color) | #515151 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57429B
#57429B
oklch(44.9% 0.139 290.6)
- #585900
#585900
oklch(44.8% 0.098 110.5)
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 #57429B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.030
- Dark Slate Blue #483D8B ΔE 0.039
- Rebecca Purple #663399 ΔE 0.040
- Twilight #4E518B ΔE 0.051
- Dusk #4E5481 ΔE 0.071
- Blue With A Hint Of Purple #533CC6 ΔE 0.071
- Bluey Purple #6241C7 ΔE 0.072
- Denim Blue #3B5B92 ΔE 0.077
Use #57429B 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.