#5F308D
Closest named color: Rebecca Purple (#663399). oklch(41.9% 0.149 303.8), rgb(95, 48, 141).
Aa
White text reads best on this color (9.15:1).
About this color
#5F308D is a dark, vivid purple. In OKLCH its lightness is 42%, its chroma 0.149 and its hue 304°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.024 away. White text reads best on it, at 9.15:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | vivid (0.149) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.29:1 |
| White text | 9.15:1 |
Values
| HEX | #5F308D |
| RGB | rgb(95, 48, 141) |
| HSL | hsl(270, 49%, 37%) |
| OKLCH | oklch(41.9% 0.149 303.8) |
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 #5F308D | 9.15:1 | AAA | Lc -95.0 | Preferred for body text |
| Black text on #5F308D | 2.29:1 | Fails | Lc 13.4 | Not readable |
| #5F308D text on white | 9.15:1 | AAA | Lc 90.6 | Preferred for body text |
| #5F308D text on black | 2.29:1 | Fails | Lc -11.7 | 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
#F7F4FC
oklch(97.2% 0.011 303.1)
-
Step 100
100
#EDE6F8
oklch(93.6% 0.025 303.5)
-
Step 200
200
#E0D2F4
oklch(88.6% 0.048 304.1)
-
Step 300
300
#CCB3EF
oklch(80.8% 0.087 303.5)
-
Step 400
400
#B389E7
oklch(70.7% 0.14 303.6)
-
Step 500
500
#A168DF
oklch(63% 0.178 303.8)
-
Step 600
600
#8D4CCD
oklch(55.6% 0.193 303.9)
-
Step 700
700
#783CB1
oklch(49.1% 0.179 304.1)
-
Step 800
800 (this color)
#5F308D
oklch(41.9% 0.149 303.8)
-
Step 900
900
#4F2E73
oklch(37.8% 0.116 303.4)
-
Step 950
950
#2E1B43
oklch(26.9% 0.074 303.8)
#5F308D 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) | #004790 | 0.118 |
| Deuteranopia (no green cones) | #14488B | 0.112 |
| Tritanopia (no blue cones) | #56445A | 0.109 |
| Achromatopsia (no color) | #484848 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F308D
#5F308D
oklch(41.9% 0.149 303.8)
- #415500
#415500
oklch(41.7% 0.103 123.8)
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 #5F308D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.024
- Dark Slate Blue #483D8B ΔE 0.049
- Blueberry #464196 ΔE 0.057
- Chrysanthemum #560BAD ΔE 0.074
- Grape #7209B7 ΔE 0.084
- Twilight #4E518B ΔE 0.085
- Purple #800080 ΔE 0.085
- Imperial Purple #480CA8 ΔE 0.085
Use #5F308D 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.