#5F399C
Closest named color: Rebecca Purple (#663399). oklch(44.3% 0.154 297.4), rgb(95, 57, 156).
Aa
White text reads best on this color (8.22:1).
About this color
#5F399C is a dark, vivid purple. In OKLCH its lightness is 44%, its chroma 0.154 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rebecca Purple (#663399), ΔE 0.018 away. White text reads best on it, at 8.22:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | vivid (0.154) |
| Temperature | in between |
| Nearest name | Rebecca Purple (#663399) |
| Black text | 2.55:1 |
| White text | 8.22:1 |
Values
| HEX | #5F399C |
| RGB | rgb(95, 57, 156) |
| HSL | hsl(263, 46%, 42%) |
| OKLCH | oklch(44.3% 0.154 297.4) |
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 #5F399C | 8.22:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #5F399C | 2.55:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #5F399C text on white | 8.22:1 | AAA | Lc 88.0 | Fine for body text |
| #5F399C text on black | 2.55:1 | 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
#F6F4FD
oklch(97.1% 0.012 296.4)
-
Step 100
100
#EBE7FA
oklch(93.7% 0.026 295.5)
-
Step 200
200
#DCD3F7
oklch(88.5% 0.05 296.8)
-
Step 300
300
#C7B5F4
oklch(81% 0.089 297.5)
-
Step 400
400
#AB8BEF
oklch(70.7% 0.145 297.3)
-
Step 500
500
#986BE9
oklch(63.2% 0.184 297.3)
-
Step 600
600
#834ED7
oklch(55.5% 0.2 297.2)
-
Step 700
700
#6F3EBA
oklch(49.1% 0.185 297.2)
-
Step 800
800 (this color)
#5F399C
oklch(44.3% 0.154 297.4)
-
Step 900
900
#4A2F78
oklch(37.7% 0.12 297.4)
-
Step 950
950
#2B1C46
oklch(26.9% 0.076 297.5)
#5F399C 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) | #004F9F | 0.108 |
| Deuteranopia (no green cones) | #054E9A | 0.107 |
| Tritanopia (no blue cones) | #504F65 | 0.119 |
| Achromatopsia (no color) | #4F4F4F | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F399C
#5F399C
oklch(44.3% 0.154 297.4)
- #4F5A00
#4F5A00
oklch(44.2% 0.103 117.6)
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 #5F399C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rebecca Purple #663399 ΔE 0.018
- Blueberry #464196 ΔE 0.046
- Dark Slate Blue #483D8B ΔE 0.049
- Bluey Purple #6241C7 ΔE 0.070
- Blue With A Hint Of Purple #533CC6 ΔE 0.071
- Twilight #4E518B ΔE 0.073
- Chrysanthemum #560BAD ΔE 0.074
- Grape #7209B7 ΔE 0.077
Use #5F399C 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.