#57338E
Closest named color: Rebecca Purple (#663399). oklch(41.5% 0.144 298), rgb(87, 51, 142).
Aa
White text reads best on this color (9.25:1).
About this color
#57338E is a dark, vivid purple. In OKLCH its lightness is 41%, its chroma 0.144 and its hue 298°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.033 away. White text reads best on it, at 9.25:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | vivid (0.144) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.26:1 |
| White text | 9.25:1 |
Values
| HEX | #57338E |
| RGB | rgb(87, 51, 142) |
| HSL | hsl(264, 47%, 38%) |
| OKLCH | oklch(41.5% 0.144 298) |
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 #57338E | 9.25:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #57338E | 2.26:1 | Fails | Lc 13.1 | Not readable |
| #57338E text on white | 9.25:1 | AAA | Lc 90.9 | Preferred for body text |
| #57338E text on black | 2.26:1 | Fails | Lc -11.4 | 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 800.
-
Step 50
50
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EBE7F9
oklch(93.6% 0.024 296.1)
-
Step 200
200
#DCD3F5
oklch(88.5% 0.047 297.5)
-
Step 300
300
#C7B5F1
oklch(80.9% 0.085 298.2)
-
Step 400
400
#AB8DE9
oklch(70.7% 0.134 297.9)
-
Step 500
500
#986DE2
oklch(63.1% 0.172 298.3)
-
Step 600
600
#8352D0
oklch(55.6% 0.187 298)
-
Step 700
700
#6F41B4
oklch(49% 0.174 298.1)
-
Step 800
800 (this color)
#57338E
oklch(41.5% 0.144 298)
-
Step 900
900
#4A3174
oklch(37.8% 0.111 298.1)
-
Step 950
950
#2B1D44
oklch(27% 0.071 298)
#57338E 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) | #004791 | 0.102 |
| Deuteranopia (no green cones) | #06468C | 0.101 |
| Tritanopia (no blue cones) | #4A475B | 0.111 |
| Achromatopsia (no color) | #474747 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57338E
#57338E
oklch(41.5% 0.144 298)
- #475200
#475200
oklch(41.4% 0.097 118.2)
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 #57338E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.033
- Dark Slate Blue #483D8B ΔE 0.034
- Blueberry #464196 ΔE 0.043
- Chrysanthemum #560BAD ΔE 0.073
- Twilight #4E518B ΔE 0.077
- Imperial Purple #480CA8 ΔE 0.079
- Indigo #4B0082 ΔE 0.084
- Cobalt #1E488F ΔE 0.089
Use #57338E 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.