#57538D
Closest named color: Twilight (#4E518B). oklch(47.3% 0.092 285.4), rgb(87, 83, 141).
Aa
White text reads best on this color (6.93:1).
About this color
#57538D is a medium-dark, moderately saturated purple. In OKLCH its lightness is 47%, its chroma 0.092 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.016 away. White text reads best on it, at 6.93:1.
| Hue family | Purples |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 3.02:1 |
| White text | 6.93:1 |
Values
| HEX | #57538D |
| RGB | rgb(87, 83, 141) |
| HSL | hsl(244, 26%, 44%) |
| OKLCH | oklch(47.3% 0.092 285.4) |
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 #57538D | 6.93:1 | AA | Lc -88.9 | Fine for body text |
| Black text on #57538D | 3.02:1 | AA large text | Lc 20.1 | Dividers and decoration only |
| #57538D text on white | 6.93:1 | AA | Lc 83.9 | Fine for body text |
| #57538D text on black | 3.02:1 | AA large text | Lc -18.0 | Dividers and decoration only |
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 700.
-
Step 50
50
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#E9E9F2
oklch(93.7% 0.012 286.2)
-
Step 200
200
#D7D7E9
oklch(88.5% 0.025 285.9)
-
Step 300
300
#BDBDDD
oklch(80.9% 0.045 285.4)
-
Step 400
400
#9C9BCC
oklch(70.8% 0.071 285.4)
-
Step 500
500
#8481BF
oklch(63% 0.092 285.6)
-
Step 600
600
#6E6AAB
oklch(55.6% 0.1 285.5)
-
Step 700
700 (this color)
#57538D
oklch(47.3% 0.092 285.4)
-
Step 800
800
#4B4877
oklch(42.6% 0.077 285.6)
-
Step 900
900
#3F3D60
oklch(37.8% 0.059 285.8)
-
Step 950
950
#252438
oklch(27.1% 0.037 286)
#57538D 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) | #405B8F | 0.036 |
| Deuteranopia (no green cones) | #3E588C | 0.036 |
| Tritanopia (no blue cones) | #485E69 | 0.079 |
| Achromatopsia (no color) | #5A5A5A | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #57538D
#57538D
oklch(47.3% 0.092 285.4)
- #635E13
#635E13
oklch(47.2% 0.092 105.5)
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 #57538D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.016
- Dusk #4E5481 ΔE 0.025
- Dusky Blue #475F94 ΔE 0.037
- Denim Blue #3B5B92 ΔE 0.041
- Dusty Grape #545775 ΔE 0.045
- Light Navy Blue #2E5A88 ΔE 0.055
- Denim #3B638C ΔE 0.056
- YInMn Blue #415A77 ΔE 0.056
Use #57538D 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.