#5B221B
Closest named color: Reddy Brown (#6E1005). oklch(33.5% 0.086 29.4), rgb(91, 34, 27).
Aa
White text reads best on this color (12.42:1).
About this color
#5B221B is a dark, moderately saturated red. In OKLCH its lightness is 34%, its chroma 0.086 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Reddy Brown (#6E1005), ΔE 0.045 away. White text reads best on it, at 12.42:1.
| Hue family | Reds |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.086) |
| Temperature | warm |
| Nearest name | Reddy Brown (#6E1005) |
| Black text | 1.68:1 |
| White text | 12.42:1 |
Values
| HEX | #5B221B |
| RGB | rgb(91, 34, 27) |
| HSL | hsl(7, 54%, 23%) |
| OKLCH | oklch(33.5% 0.086 29.4) |
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 #5B221B | 12.42:1 | AAA | Lc -101.2 | Preferred for body text |
| Black text on #5B221B | 1.68:1 | Fails | Lc 0.0 | Not readable |
| #5B221B text on white | 12.42:1 | AAA | Lc 97.7 | Preferred for body text |
| #5B221B text on black | 1.68:1 | 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
#F0D1CC
oklch(88.5% 0.036 28.7)
-
Step 300
300
#E7B2A9
oklch(80.9% 0.064 29.5)
-
Step 400
400
#D9887B
oklch(70.8% 0.102 29.7)
-
Step 500
500
#CD6759
oklch(63.1% 0.132 29.3)
-
Step 600
600
#B84C3F
oklch(55.6% 0.143 29.3)
-
Step 700
700
#9E3C31
oklch(49% 0.133 29.2)
-
Step 800
800
#803329
oklch(42.7% 0.109 29.7)
-
Step 900
900 (this color)
#5B221B
oklch(33.5% 0.086 29.4)
-
Step 950
950
#3D1B16
oklch(27% 0.055 29.8)
#5B221B 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) | #312C1A | 0.088 |
| Deuteranopia (no green cones) | #3F391A | 0.082 |
| Tritanopia (no blue cones) | #641721 | 0.030 |
| Achromatopsia (no color) | #343434 | 0.086 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B221B
#5B221B
oklch(33.5% 0.086 29.4)
- #003F47
#003F47
oklch(33.7% 0.058 208.9)
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 #5B221B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Reddy Brown #6E1005 ΔE 0.045
- Claret #680018 ΔE 0.050
- Burgundy #610023 ΔE 0.057
- Chestnut #742802 ΔE 0.063
- Blood #770001 ΔE 0.065
- Chocolate Brown #411900 ΔE 0.072
- Wine Red #7B0323 ΔE 0.075
- Purple Brown #673A3F ΔE 0.076
Use #5B221B 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.