#5B457D
Closest named color: Twilight (#4E518B). oklch(43.9% 0.092 300.8), rgb(91, 69, 125).
Aa
White text reads best on this color (8.10:1).
About this color
#5B457D is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.092 and its hue 301°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.040 away. White text reads best on it, at 8.10:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.092) |
| Temperature | in between |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.59:1 |
| White text | 8.10:1 |
Values
| HEX | #5B457D |
| RGB | rgb(91, 69, 125) |
| HSL | hsl(264, 29%, 38%) |
| OKLCH | oklch(43.9% 0.092 300.8) |
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 #5B457D | 8.10:1 | AAA | Lc -92.6 | Preferred for body text |
| Black text on #5B457D | 2.59:1 | Fails | Lc 16.1 | Dividers and decoration only |
| #5B457D text on white | 8.10:1 | AAA | Lc 87.9 | Fine for body text |
| #5B457D text on black | 2.59:1 | Fails | Lc -14.2 | 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#EBE8F3
oklch(93.7% 0.015 298.6)
-
Step 200
200
#DCD5EA
oklch(88.5% 0.029 301)
-
Step 300
300
#C6B9DF
oklch(80.9% 0.055 300.8)
-
Step 400
400
#A994CF
oklch(70.6% 0.087 300.5)
-
Step 500
500
#9579C2
oklch(63.1% 0.111 300.9)
-
Step 600
600
#7F61AE
oklch(55.6% 0.12 300.5)
-
Step 700
700
#6C5096
oklch(49.2% 0.112 300.8)
-
Step 800
800 (this color)
#5B457D
oklch(43.9% 0.092 300.8)
-
Step 900
900
#483862
oklch(37.7% 0.072 300.5)
-
Step 950
950
#2A2139
oklch(27% 0.045 300.7)
#5B457D 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) | #364F7F | 0.059 |
| Deuteranopia (no green cones) | #3A4F7C | 0.056 |
| Tritanopia (no blue cones) | #554F5B | 0.072 |
| Achromatopsia (no color) | #505050 | 0.093 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B457D
#5B457D
oklch(43.9% 0.092 300.8)
- #4B5A15
#4B5A15
oklch(44% 0.093 121.1)
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 #5B457D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.040
- Dusk #4E5481 ΔE 0.044
- Dark Slate Blue #483D8B ΔE 0.049
- Dusty Grape #545775 ΔE 0.057
- Blueberry #464196 ΔE 0.057
- Rebecca Purple #663399 ΔE 0.068
- YInMn Blue #415A77 ΔE 0.072
- Denim Blue #3B5B92 ΔE 0.074
Use #5B457D 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.