#5B3133
Closest named color: Purple Brown (#673A3F). oklch(36.7% 0.061 17.5), rgb(91, 49, 51).
Aa
White text reads best on this color (10.86:1).
About this color
#5B3133 is a dark, muted red. In OKLCH its lightness is 37%, its chroma 0.061 and its hue 17°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.038 away. White text reads best on it, at 10.86:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | muted (0.061) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.93:1 |
| White text | 10.86:1 |
Values
| HEX | #5B3133 |
| RGB | rgb(91, 49, 51) |
| HSL | hsl(357, 30%, 27%) |
| OKLCH | oklch(36.7% 0.061 17.5) |
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 #5B3133 | 10.86:1 | AAA | Lc -98.9 | Preferred for body text |
| Black text on #5B3133 | 1.93:1 | Fails | Lc 8.9 | Not readable |
| #5B3133 text on white | 10.86:1 | AAA | Lc 95.0 | Preferred for body text |
| #5B3133 text on black | 1.93:1 | Fails | Lc -7.7 | 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 900.
-
Step 50
50
#FAF4F4
oklch(97.2% 0.006 17.3)
-
Step 100
100
#F3E6E6
oklch(93.5% 0.014 17.4)
-
Step 200
200
#EAD3D3
oklch(88.6% 0.026 17.6)
-
Step 300
300
#DDB5B6
oklch(80.9% 0.046 16.5)
-
Step 400
400
#CA8E90
oklch(70.6% 0.073 16.9)
-
Step 500
500
#BB7174
oklch(63% 0.094 17.5)
-
Step 600
600
#A6595D
oklch(55.6% 0.101 17.6)
-
Step 700
700
#8E484D
oklch(49% 0.095 16.7)
-
Step 800
800
#743C3F
oklch(42.8% 0.078 17.5)
-
Step 900
900 (this color)
#5B3133
oklch(36.7% 0.061 17.5)
-
Step 950
950
#371E1F
oklch(26.9% 0.039 17.4)
#5B3133 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) | #393833 | 0.066 |
| Deuteranopia (no green cones) | #444032 | 0.060 |
| Tritanopia (no blue cones) | #622C32 | 0.018 |
| Achromatopsia (no color) | #3D3D3D | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B3133
#5B3133
oklch(36.7% 0.061 17.5)
- #03494A
#03494A
oklch(36.8% 0.061 196.4)
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 #5B3133, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.038
- Chestnut #742802 ΔE 0.068
- Charcoal Grey #3C4142 ΔE 0.068
- Reddy Brown #6E1005 ΔE 0.073
- Onyx #343A40 ΔE 0.074
- Brownish Purple #76424E ΔE 0.080
- Claret #680018 ΔE 0.081
- Burgundy #610023 ΔE 0.084
Use #5B3133 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.