#57359B
Closest named color: Rebecca Purple (#663399). oklch(42.8% 0.158 294), rgb(87, 53, 155).
Aa
White text reads best on this color (8.79:1).
About this color
#57359B is a dark, vivid purple. In OKLCH its lightness is 43%, its chroma 0.158 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.029 away. White text reads best on it, at 8.79:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | vivid (0.158) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.38:1 |
| White text | 8.79:1 |
Values
| HEX | #57359B |
| RGB | rgb(87, 53, 155) |
| HSL | hsl(260, 49%, 41%) |
| OKLCH | oklch(42.8% 0.158 294) |
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 #57359B | 8.79:1 | AAA | Lc -94.1 | Preferred for body text |
| Black text on #57359B | 2.38:1 | Fails | Lc 14.4 | Not readable |
| #57359B text on white | 8.79:1 | AAA | Lc 89.6 | Fine for body text |
| #57359B text on black | 2.38:1 | Fails | Lc -12.6 | 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
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#EAE7FB
oklch(93.6% 0.027 292.8)
-
Step 200
200
#DAD3F8
oklch(88.4% 0.051 294)
-
Step 300
300
#C3B5F7
oklch(80.8% 0.093 293.9)
-
Step 400
400
#A68CF3
oklch(70.6% 0.148 293.9)
-
Step 500
500
#926CEE
oklch(63.1% 0.188 293.8)
-
Step 600
600
#7E4FDC
oklch(55.5% 0.204 294.1)
-
Step 700
700
#6B3EBF
oklch(49% 0.191 294.3)
-
Step 800
800 (this color)
#57359B
oklch(42.8% 0.158 294)
-
Step 900
900
#47307B
oklch(37.8% 0.122 293.9)
-
Step 950
950
#291D48
oklch(27% 0.077 293.4)
#57359B 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) | #004C9E | 0.099 |
| Deuteranopia (no green cones) | #004999 | 0.099 |
| Tritanopia (no blue cones) | #444D63 | 0.125 |
| Achromatopsia (no color) | #4A4A4A | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57359B
#57359B
oklch(42.8% 0.158 294)
- #4F5400
#4F5400
oklch(42.7% 0.096 113.7)
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 #57359B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.029
- Blueberry #464196 ΔE 0.039
- Dark Slate Blue #483D8B ΔE 0.041
- Chrysanthemum #560BAD ΔE 0.062
- Blue With A Hint Of Purple #533CC6 ΔE 0.071
- Imperial Purple #480CA8 ΔE 0.071
- Bluey Purple #6241C7 ΔE 0.077
- Twilight #4E518B ΔE 0.078
Use #57359B 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.