#5B2F7C
Closest named color: Dark Slate Blue (#483D8B). oklch(40% 0.129 308), rgb(91, 47, 124).
Aa
White text reads best on this color (9.80:1).
About this color
#5B2F7C is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.129 and its hue 308°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.050 away. White text reads best on it, at 9.80:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.129) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.14:1 |
| White text | 9.80:1 |
Values
| HEX | #5B2F7C |
| RGB | rgb(91, 47, 124) |
| HSL | hsl(274, 45%, 34%) |
| OKLCH | oklch(40% 0.129 308) |
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 #5B2F7C | 9.80:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #5B2F7C | 2.14:1 | Fails | Lc 11.6 | Not readable |
| #5B2F7C text on white | 9.80:1 | AAA | Lc 92.3 | Preferred for body text |
| #5B2F7C text on black | 2.14:1 | Fails | Lc -10.1 | 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
#F8F3FC
oklch(97.1% 0.013 310.5)
-
Step 100
100
#EFE5F9
oklch(93.6% 0.029 308.1)
-
Step 200
200
#E3D0F5
oklch(88.5% 0.054 308.4)
-
Step 300
300
#D2B0F1
oklch(80.9% 0.097 308.1)
-
Step 400
400
#BB84EA
oklch(70.7% 0.154 307.8)
-
Step 500
500
#AB60E3
oklch(63.2% 0.197 308.2)
-
Step 600
600
#9641D1
oklch(55.6% 0.214 307.9)
-
Step 700
700
#8031B5
oklch(49.1% 0.199 307.9)
-
Step 800
800
#682A93
oklch(42.7% 0.166 307.8)
-
Step 900
900 (this color)
#5B2F7C
oklch(40% 0.129 308)
-
Step 950
950
#311945
oklch(27% 0.082 306.9)
#5B2F7C 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) | #0E427E | 0.110 |
| Deuteranopia (no green cones) | #23447A | 0.098 |
| Tritanopia (no blue cones) | #563E51 | 0.091 |
| Achromatopsia (no color) | #444444 | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B2F7C
#5B2F7C
oklch(40% 0.129 308)
- #375100
#375100
oklch(39.9% 0.104 127.8)
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 #5B2F7C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.050
- Rebecca Purple #663399 ΔE 0.052
- Blueberry #464196 ΔE 0.067
- Indigo #4B0082 ΔE 0.081
- Grape Purple #5D1451 ΔE 0.085
- Royal Purple #4B006E ΔE 0.087
- Twilight #4E518B ΔE 0.088
- Purple #800080 ΔE 0.088
Use #5B2F7C 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.