#5F428B
Closest named color: Rebecca Purple (#663399). oklch(44.6% 0.118 300), rgb(95, 66, 139).
Aa
White text reads best on this color (7.95:1).
About this color
#5F428B is a dark, moderately saturated purple. In OKLCH its lightness is 45%, its chroma 0.118 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.044 away. White text reads best on it, at 7.95:1.
| Hue family | Purples |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.118) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.63:1 |
| White text | 7.95:1 |
Values
| HEX | #5F428B |
| RGB | rgb(95, 66, 139) |
| HSL | hsl(264, 36%, 40%) |
| OKLCH | oklch(44.6% 0.118 300) |
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 #5F428B | 7.95:1 | AAA | Lc -92.1 | Preferred for body text |
| Black text on #5F428B | 2.63:1 | Fails | Lc 16.6 | Dividers and decoration only |
| #5F428B text on white | 7.95:1 | AAA | Lc 87.4 | Fine for body text |
| #5F428B text on black | 2.63:1 | Fails | Lc -14.7 | 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
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#ECE7F6
oklch(93.6% 0.021 301.1)
-
Step 200
200
#DDD4EF
oklch(88.5% 0.038 300.8)
-
Step 300
300
#C7B7E7
oklch(80.9% 0.069 300.1)
-
Step 400
400
#AB90DB
oklch(70.6% 0.111 300.1)
-
Step 500
500
#9773D1
oklch(63% 0.141 300.1)
-
Step 600
600
#825ABE
oklch(55.6% 0.152 299.9)
-
Step 700
700
#6E49A4
oklch(49% 0.142 299.9)
-
Step 800
800 (this color)
#5F428B
oklch(44.6% 0.118 300)
-
Step 900
900
#49346B
oklch(37.6% 0.093 299.5)
-
Step 950
950
#2B1F3E
oklch(27% 0.058 300.4)
#5F428B 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) | #29518E | 0.081 |
| Deuteranopia (no green cones) | #305089 | 0.075 |
| Tritanopia (no blue cones) | #565060 | 0.091 |
| Achromatopsia (no color) | #515151 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F428B
#5F428B
oklch(44.6% 0.118 300)
- #4D5C00
#4D5C00
oklch(44.6% 0.106 120.1)
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 #5F428B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.044
- Dark Slate Blue #483D8B ΔE 0.044
- Twilight #4E518B ΔE 0.046
- Blueberry #464196 ΔE 0.047
- Dusk #4E5481 ΔE 0.059
- Dusty Grape #545775 ΔE 0.077
- Denim Blue #3B5B92 ΔE 0.080
- Dusky Blue #475F94 ΔE 0.082
Use #5F428B 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.