#5B231F
Closest named color: Reddy Brown (#6E1005). oklch(33.8% 0.083 26.6), rgb(91, 35, 31).
Aa
White text reads best on this color (12.31:1).
About this color
#5B231F is a dark, moderately saturated red. In OKLCH its lightness is 34%, its chroma 0.083 and its hue 27°. Its hue sits on the warm side of the wheel. The nearest named color is Reddy Brown (#6E1005), ΔE 0.047 away. White text reads best on it, at 12.31:1.
| Hue family | Reds |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.083) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.70:1 |
| White text | 12.31:1 |
Values
| HEX | #5B231F |
| RGB | rgb(91, 35, 31) |
| HSL | hsl(4, 49%, 24%) |
| OKLCH | oklch(33.8% 0.083 26.6) |
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 #5B231F | 12.31:1 | AAA | Lc -101.1 | Preferred for body text |
| Black text on #5B231F | 1.70:1 | Fails | Lc 0.0 | Not readable |
| #5B231F text on white | 12.31:1 | AAA | Lc 97.5 | Preferred for body text |
| #5B231F text on black | 1.70:1 | Fails | Lc 0.0 | 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
#FBF3F2
oklch(97% 0.009 26)
-
Step 100
100
#F6E6E3
oklch(93.7% 0.018 30.3)
-
Step 200
200
#EFD1CD
oklch(88.5% 0.034 26.8)
-
Step 300
300
#E7B2AB
oklch(81% 0.063 27.2)
-
Step 400
400
#D8887F
oklch(70.7% 0.1 26.8)
-
Step 500
500
#CB685F
oklch(63.1% 0.127 26.6)
-
Step 600
600
#B74D45
oklch(55.7% 0.139 26.8)
-
Step 700
700
#9D3D37
oklch(49.1% 0.13 26.5)
-
Step 800
800
#7F332E
oklch(42.6% 0.107 26.3)
-
Step 900
900 (this color)
#5B231F
oklch(33.8% 0.083 26.6)
-
Step 950
950
#3C1B18
oklch(26.9% 0.053 26.5)
#5B231F 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) | #312D1E | 0.088 |
| Deuteranopia (no green cones) | #3F391E | 0.080 |
| Tritanopia (no blue cones) | #641922 | 0.027 |
| Achromatopsia (no color) | #353535 | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B231F
#5B231F
oklch(33.8% 0.083 26.6)
- #003F46
#003F46
oklch(33.6% 0.058 207.2)
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 #5B231F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddy Brown #6E1005 ΔE 0.047
- Claret #680018 ΔE 0.051
- Burgundy #610023 ΔE 0.057
- Chestnut #742802 ΔE 0.064
- Blood #770001 ΔE 0.066
- Purple Brown #673A3F ΔE 0.072
- Wine Red #7B0323 ΔE 0.074
- Chocolate Brown #411900 ΔE 0.075
Use #5B231F 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.