#5B313B
Closest named color: Purple Brown (#673A3F). oklch(37% 0.062 5.3), rgb(91, 49, 59).
Aa
White text reads best on this color (10.78:1).
About this color
#5B313B is a dark, muted red. In OKLCH its lightness is 37%, its chroma 0.062 and its hue 5°. Its hue sits on the warm side of the wheel. The nearest named color is Purple Brown (#673A3F), ΔE 0.037 away. White text reads best on it, at 10.78:1.
| Hue family | Reds |
| Lightness | dark (37%) |
| Chroma | muted (0.062) |
| Temperature | warm |
| Nearest name | Purple Brown (#673A3F) |
| Black text | 1.94:1 |
| White text | 10.78:1 |
Values
| HEX | #5B313B |
| RGB | rgb(91, 49, 59) |
| HSL | hsl(346, 30%, 27%) |
| OKLCH | oklch(37% 0.062 5.3) |
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 #5B313B | 10.78:1 | AAA | Lc -98.7 | Preferred for body text |
| Black text on #5B313B | 1.94:1 | Fails | Lc 9.1 | Not readable |
| #5B313B text on white | 10.78:1 | AAA | Lc 94.8 | Preferred for body text |
| #5B313B text on black | 1.94:1 | Fails | Lc -7.8 | 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
#F9F4F5
oklch(97.1% 0.006 3.3)
-
Step 100
100
#F2E6E8
oklch(93.5% 0.013 5.8)
-
Step 200
200
#E9D2D7
oklch(88.4% 0.026 2.8)
-
Step 300
300
#DCB5BC
oklch(80.9% 0.046 6)
-
Step 400
400
#C98D9A
oklch(70.6% 0.075 4.9)
-
Step 500
500
#BA7081
oklch(63% 0.096 5.3)
-
Step 600
600
#A5586B
oklch(55.6% 0.103 5.2)
-
Step 700
700
#8D4759
oklch(49% 0.097 4.9)
-
Step 800
800
#733B49
oklch(42.7% 0.08 5.1)
-
Step 900
900 (this color)
#5B313B
oklch(37% 0.062 5.3)
-
Step 950
950
#371E24
oklch(27% 0.04 4.6)
#5B313B 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) | #38393B | 0.068 |
| Deuteranopia (no green cones) | #42403A | 0.062 |
| Tritanopia (no blue cones) | #622E35 | 0.017 |
| Achromatopsia (no color) | #3D3D3D | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B313B
#5B313B
oklch(37% 0.062 5.3)
- #074A44
#074A44
oklch(36.9% 0.062 185.3)
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 #5B313B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Purple Brown #673A3F ΔE 0.037
- Charcoal Grey #3C4142 ΔE 0.068
- Onyx #343A40 ΔE 0.073
- Brownish Purple #76424E ΔE 0.077
- Chestnut #742802 ΔE 0.077
- Reddy Brown #6E1005 ΔE 0.081
- Claret #680018 ΔE 0.084
- Grape Purple #5D1451 ΔE 0.084
Use #5B313B 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.