#5F287B
Closest named color: Rebecca Purple (#663399). oklch(39.5% 0.14 312.2), rgb(95, 40, 123).
Aa
White text reads best on this color (10.11:1).
About this color
#5F287B is a dark, vivid purple. In OKLCH its lightness is 39%, its chroma 0.140 and its hue 312°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.055 away. White text reads best on it, at 10.11:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | vivid (0.140) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.07:1 |
| White text | 10.11:1 |
Values
| HEX | #5F287B |
| RGB | rgb(95, 40, 123) |
| HSL | hsl(280, 51%, 32%) |
| OKLCH | oklch(39.5% 0.14 312.2) |
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 #5F287B | 10.11:1 | AAA | Lc -97.0 | Preferred for body text |
| Black text on #5F287B | 2.07:1 | Fails | Lc 11.1 | Not readable |
| #5F287B text on white | 10.11:1 | AAA | Lc 92.9 | Preferred for body text |
| #5F287B text on black | 2.07:1 | Fails | Lc -9.6 | 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 900.
-
Step 50
50
#F9F3FC
oklch(97.1% 0.013 314.8)
-
Step 100
100
#F1E4F9
oklch(93.5% 0.031 312.9)
-
Step 200
200
#E6CFF6
oklch(88.6% 0.058 311.5)
-
Step 300
300
#D8ADF2
oklch(80.9% 0.105 312.4)
-
Step 400
400
#C47EEB
oklch(70.8% 0.168 312.4)
-
Step 500
500
#B457E5
oklch(63.1% 0.215 312)
-
Step 600
600
#A034D2
oklch(55.6% 0.233 312.3)
-
Step 700
700
#8923B6
oklch(49.1% 0.217 312.4)
-
Step 800
800
#6F2193
oklch(42.7% 0.179 312.4)
-
Step 900
900 (this color)
#5F287B
oklch(39.5% 0.14 312.2)
-
Step 950
950
#351645
oklch(27.1% 0.089 312.4)
#5F287B 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) | #003F7E | 0.129 |
| Deuteranopia (no green cones) | #214379 | 0.113 |
| Tritanopia (no blue cones) | #5C384E | 0.093 |
| Achromatopsia (no color) | #424242 | 0.141 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F287B
#5F287B
oklch(39.5% 0.14 312.2)
- #2E5200
#2E5200
oklch(39.6% 0.111 132.4)
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 #5F287B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.055
- Dark Slate Blue #483D8B ΔE 0.065
- Indigo #4B0082 ΔE 0.074
- Purple #800080 ΔE 0.075
- Grape Purple #5D1451 ΔE 0.077
- Royal Purple #4B006E ΔE 0.079
- Blueberry #464196 ΔE 0.080
- Rich Purple #720058 ΔE 0.081
Use #5F287B 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.