#5B3536
Closest named color: Purple Brown (#673A3F). oklch(37.6% 0.055 18.3), rgb(91, 53, 54).
Aa
White text reads best on this color (10.46:1).
About this color
#5B3536 is a dark, muted red. In OKLCH its lightness is 38%, its chroma 0.055 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.031 away. White text reads best on it, at 10.46:1.
| Hue family | Reds |
| Lightness | dark (38%) |
| Chroma | muted (0.055) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 2.00:1 |
| White text | 10.46:1 |
Values
| HEX | #5B3536 |
| RGB | rgb(91, 53, 54) |
| HSL | hsl(358, 26%, 28%) |
| OKLCH | oklch(37.6% 0.055 18.3) |
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 #5B3536 | 10.46:1 | AAA | Lc -98.1 | Preferred for body text |
| Black text on #5B3536 | 2.00:1 | Fails | Lc 9.8 | Not readable |
| #5B3536 text on white | 10.46:1 | AAA | Lc 94.1 | Preferred for body text |
| #5B3536 text on black | 2.00:1 | Fails | Lc -8.4 | 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
#F9F4F4
oklch(97.1% 0.005 17.2)
-
Step 100
100
#F2E7E7
oklch(93.7% 0.012 17.4)
-
Step 200
200
#E8D3D3
oklch(88.4% 0.023 17.6)
-
Step 300
300
#DAB7B6
oklch(81% 0.04 20)
-
Step 400
400
#C69091
oklch(70.6% 0.066 17.6)
-
Step 500
500
#B77476
oklch(63% 0.085 17.8)
-
Step 600
600
#A25C5F
oklch(55.6% 0.092 17.7)
-
Step 700
700
#8A4C4E
oklch(49.1% 0.084 18.5)
-
Step 800
800
#713E40
oklch(42.7% 0.071 18)
-
Step 900
900 (this color)
#5B3536
oklch(37.6% 0.055 18.3)
-
Step 950
950
#361F20
oklch(27% 0.036 16.9)
#5B3536 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) | #3C3B36 | 0.059 |
| Deuteranopia (no green cones) | #464235 | 0.053 |
| Tritanopia (no blue cones) | #623136 | 0.017 |
| Achromatopsia (no color) | #3F3F3F | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B3536
#5B3536
oklch(37.6% 0.055 18.3)
- #144A4C
#144A4C
oklch(37.6% 0.055 198.6)
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 #5B3536, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.031
- Charcoal Grey #3C4142 ΔE 0.062
- Chestnut #742802 ΔE 0.069
- Onyx #343A40 ΔE 0.071
- Brownish Purple #76424E ΔE 0.073
- Mud Brown #60460F ΔE 0.080
- Reddy Brown #6E1005 ΔE 0.081
- Claret #680018 ΔE 0.090
Use #5B3536 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.