#5B3759
Closest named color: Purple Brown (#673A3F). oklch(39.3% 0.072 328.8), rgb(91, 55, 89).
Aa
White text reads best on this color (9.83:1).
About this color
#5B3759 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.072 and its hue 329°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.053 away. White text reads best on it, at 9.83:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.072) |
| Temperature | in between |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.13:1 |
| White text | 9.83:1 |
Values
| HEX | #5B3759 |
| RGB | rgb(91, 55, 89) |
| HSL | hsl(303, 25%, 29%) |
| OKLCH | oklch(39.3% 0.072 328.8) |
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 #5B3759 | 9.83:1 | AAA | Lc -96.8 | Preferred for body text |
| Black text on #5B3759 | 2.13:1 | Fails | Lc 11.3 | Not readable |
| #5B3759 text on white | 9.83:1 | AAA | Lc 92.7 | Preferred for body text |
| #5B3759 text on black | 2.13:1 | Fails | Lc -9.8 | 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
#F8F4F8
oklch(97.1% 0.007 325.6)
-
Step 100
100
#F0E6EF
oklch(93.5% 0.016 328.8)
-
Step 200
200
#E5D2E3
oklch(88.4% 0.031 329.1)
-
Step 300
300
#D5B5D2
oklch(81% 0.053 329.1)
-
Step 400
400
#BF8DBC
oklch(70.7% 0.088 328.5)
-
Step 500
500
#AE70AB
oklch(63.1% 0.111 328.5)
-
Step 600
600
#995796
oklch(55.6% 0.121 328.7)
-
Step 700
700
#834780
oklch(49.2% 0.113 329)
-
Step 800
800
#6A3B68
oklch(42.7% 0.092 328.6)
-
Step 900
900 (this color)
#5B3759
oklch(39.3% 0.072 328.8)
-
Step 950
950
#331E31
oklch(27% 0.045 330.1)
#5B3759 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) | #35405A | 0.068 |
| Deuteranopia (no green cones) | #3E4558 | 0.063 |
| Tritanopia (no blue cones) | #5D3A44 | 0.040 |
| Achromatopsia (no color) | #434343 | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B3759
#5B3759
oklch(39.3% 0.072 328.8)
- #275030
#275030
oklch(39.2% 0.071 149.3)
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 #5B3759, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.053
- Brownish Purple #76424E ΔE 0.070
- Grape Purple #5D1451 ΔE 0.076
- Charcoal Grey #3C4142 ΔE 0.079
- Onyx #343A40 ΔE 0.086
- Dark Grey Blue #29465B ΔE 0.087
- Velvet #750851 ΔE 0.088
- Dark Slate Blue #483D8B ΔE 0.089
Use #5B3759 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.