#5B2909
Closest named color: Chestnut (#742802). oklch(34.5% 0.084 48.5), rgb(91, 41, 9).
Aa
White text reads best on this color (11.89:1).
About this color
#5B2909 is a dark, moderately saturated brown. In OKLCH its lightness is 34%, its chroma 0.084 and its hue 48°. Its hue sits on the warm side of the wheel. The nearest named color is Chestnut (#742802), ΔE 0.053 away. White text reads best on it, at 11.89:1.
| Hue family | Browns |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.084) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 1.76:1 |
| White text | 11.89:1 |
Values
| HEX | #5B2909 |
| RGB | rgb(91, 41, 9) |
| HSL | hsl(23, 82%, 20%) |
| OKLCH | oklch(34.5% 0.084 48.5) |
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 #5B2909 | 11.89:1 | AAA | Lc -100.4 | Preferred for body text |
| Black text on #5B2909 | 1.76:1 | Fails | Lc 0.0 | Not readable |
| #5B2909 text on white | 11.89:1 | AAA | Lc 96.8 | Preferred for body text |
| #5B2909 text on black | 1.76:1 | 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
#FBF4F1
oklch(97.2% 0.009 44.9)
-
Step 100
100
#F5E7DF
oklch(93.7% 0.019 52)
-
Step 200
200
#EED3C5
oklch(88.6% 0.036 49.2)
-
Step 300
300
#E4B59D
oklch(80.9% 0.064 48.4)
-
Step 400
400
#D48D67
oklch(70.7% 0.101 48.7)
-
Step 500
500
#C76F3C
oklch(63.1% 0.129 48.9)
-
Step 600
600
#B35515
oklch(55.7% 0.141 48.7)
-
Step 700
700
#994404
oklch(49% 0.131 48.4)
-
Step 800
800
#7D390B
oklch(42.8% 0.109 48.5)
-
Step 900
900 (this color)
#5B2909
oklch(34.5% 0.084 48.5)
-
Step 950
950
#3B1E0D
oklch(27.1% 0.053 49.4)
#5B2909 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) | #373005 | 0.076 |
| Deuteranopia (no green cones) | #433B08 | 0.068 |
| Tritanopia (no blue cones) | #651E23 | 0.049 |
| Achromatopsia (no color) | #373737 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B2909
#5B2909
oklch(34.5% 0.084 48.5)
- #003F55
#003F55
oklch(34.4% 0.068 229.3)
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 #5B2909, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.053
- Reddy Brown #6E1005 ΔE 0.055
- Claret #680018 ΔE 0.074
- Blood #770001 ΔE 0.074
- Chocolate Brown #411900 ΔE 0.076
- Purple Brown #673A3F ΔE 0.078
- Mud Brown #60460F ΔE 0.082
- Burgundy #610023 ΔE 0.086
Use #5B2909 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.