#57319D
Closest named color: Rebecca Purple (#663399). oklch(42.4% 0.166 294.4), rgb(87, 49, 157).
Aa
White text reads best on this color (9.00:1).
About this color
#57319D is a dark, vivid purple. In OKLCH its lightness is 42%, its chroma 0.166 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 0.031 away. White text reads best on it, at 9.00:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | vivid (0.166) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.33:1 |
| White text | 9.00:1 |
Values
| HEX | #57319D |
| RGB | rgb(87, 49, 157) |
| HSL | hsl(261, 52%, 40%) |
| OKLCH | oklch(42.4% 0.166 294.4) |
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 #57319D | 9.00:1 | AAA | Lc -94.6 | Preferred for body text |
| Black text on #57319D | 2.33:1 | Fails | Lc 13.9 | Not readable |
| #57319D text on white | 9.00:1 | AAA | Lc 90.1 | Preferred for body text |
| #57319D text on black | 2.33:1 | Fails | Lc -12.2 | 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
#F6F4FE
oklch(97.2% 0.013 295.3)
-
Step 100
100
#EAE7FB
oklch(93.6% 0.027 292.8)
-
Step 200
200
#DBD3FA
oklch(88.6% 0.054 294.7)
-
Step 300
300
#C4B5F9
oklch(80.9% 0.096 294.3)
-
Step 400
400
#A78BF6
oklch(70.7% 0.154 294.2)
-
Step 500
500
#9469F3
oklch(63.1% 0.198 294.4)
-
Step 600
600
#804BE1
oklch(55.6% 0.215 294.6)
-
Step 700
700
#6C3BC4
oklch(49.1% 0.2 294.2)
-
Step 800
800 (this color)
#57319D
oklch(42.4% 0.166 294.4)
-
Step 900
900
#482E7E
oklch(37.8% 0.129 294.3)
-
Step 950
950
#2A1C4A
oklch(27.1% 0.082 294.3)
#57319D 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) | #004AA0 | 0.102 |
| Deuteranopia (no green cones) | #00479B | 0.101 |
| Tritanopia (no blue cones) | #444B63 | 0.129 |
| Achromatopsia (no color) | #494949 | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57319D
#57319D
oklch(42.4% 0.166 294.4)
- #4D5300
#4D5300
oklch(42.2% 0.095 114.5)
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 #57319D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.031
- Blueberry #464196 ΔE 0.045
- Dark Slate Blue #483D8B ΔE 0.047
- Chrysanthemum #560BAD ΔE 0.054
- Imperial Purple #480CA8 ΔE 0.064
- Blue With A Hint Of Purple #533CC6 ΔE 0.070
- Grape #7209B7 ΔE 0.074
- Bluey Purple #6241C7 ΔE 0.078
Use #57319D 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.