#5B3333
Closest named color: Purple Brown (#673A3F). oklch(37.1% 0.058 20.2), rgb(91, 51, 51).
Aa
White text reads best on this color (10.68:1).
About this color
#5B3333 is a dark, muted red. In OKLCH its lightness is 37%, its chroma 0.058 and its hue 20°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.035 away. White text reads best on it, at 10.68:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | muted (0.058) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.96:1 |
| White text | 10.68:1 |
Values
| HEX | #5B3333 |
| RGB | rgb(91, 51, 51) |
| HSL | hsl(0, 28%, 28%) |
| OKLCH | oklch(37.1% 0.058 20.2) |
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 #5B3333 | 10.68:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #5B3333 | 1.96:1 | Fails | Lc 9.3 | Not readable |
| #5B3333 text on white | 10.68:1 | AAA | Lc 94.6 | Preferred for body text |
| #5B3333 text on black | 1.96:1 | Fails | Lc -8.0 | 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
#F2E7E6
oklch(93.6% 0.012 23.7)
-
Step 200
200
#E9D3D2
oklch(88.5% 0.025 20.8)
-
Step 300
300
#DCB6B5
oklch(80.9% 0.044 19.9)
-
Step 400
400
#C9908E
oklch(70.8% 0.07 21.2)
-
Step 500
500
#B97373
oklch(63% 0.089 19.9)
-
Step 600
600
#A45B5B
oklch(55.6% 0.096 20.6)
-
Step 700
700
#8D4A4B
oklch(49.1% 0.091 20)
-
Step 800
800
#723D3E
oklch(42.6% 0.074 19.5)
-
Step 900
900 (this color)
#5B3333
oklch(37.1% 0.058 20.2)
-
Step 950
950
#361F1F
oklch(26.9% 0.036 19.7)
#5B3333 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) | #3B3933 | 0.062 |
| Deuteranopia (no green cones) | #454132 | 0.057 |
| Tritanopia (no blue cones) | #622E33 | 0.018 |
| Achromatopsia (no color) | #3E3E3E | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B3333
#5B3333
oklch(37.1% 0.058 20.2)
- #0C494C
#0C494C
oklch(37.1% 0.058 200)
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 #5B3333, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.035
- Charcoal Grey #3C4142 ΔE 0.065
- Chestnut #742802 ΔE 0.067
- Onyx #343A40 ΔE 0.072
- Reddy Brown #6E1005 ΔE 0.076
- Brownish Purple #76424E ΔE 0.078
- Mud Brown #60460F ΔE 0.082
- Claret #680018 ΔE 0.085
Use #5B3333 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.