#5B321C
Closest named color: Chestnut (#742802). oklch(36.4% 0.068 47.8), rgb(91, 50, 28).
Aa
White text reads best on this color (10.94:1).
About this color
#5B321C is a dark, muted brown. In OKLCH its lightness is 36%, its chroma 0.068 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 10.94:1.
| Hue family | Browns |
| Lightness | dark (36%) |
| Chroma | muted (0.068) |
| Temperature | warm |
| Nearest name | Chestnut (#742802) |
| Black text | 1.91:1 |
| White text | 10.94:1 |
Values
| HEX | #5B321C |
| RGB | rgb(91, 50, 28) |
| HSL | hsl(21, 53%, 23%) |
| OKLCH | oklch(36.4% 0.068 47.8) |
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 #5B321C | 10.94:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #5B321C | 1.91:1 | Fails | Lc 8.8 | Not readable |
| #5B321C text on white | 10.94:1 | AAA | Lc 95.1 | Preferred for body text |
| #5B321C text on black | 1.91:1 | Fails | Lc -7.5 | 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
#FAF4F1
oklch(97.1% 0.008 48.7)
-
Step 100
100
#F3E7E1
oklch(93.6% 0.015 48.6)
-
Step 200
200
#EAD4C9
oklch(88.5% 0.029 48.4)
-
Step 300
300
#DDB7A4
oklch(80.8% 0.051 48.1)
-
Step 400
400
#CB9174
oklch(70.6% 0.082 47.5)
-
Step 500
500
#BD754F
oklch(63.2% 0.105 48)
-
Step 600
600
#A85C32
oklch(55.6% 0.114 47.9)
-
Step 700
700
#904B25
oklch(49% 0.106 47.4)
-
Step 800
800
#753E20
oklch(42.6% 0.088 47.6)
-
Step 900
900 (this color)
#5B321C
oklch(36.4% 0.068 47.8)
-
Step 950
950
#382013
oklch(27.2% 0.044 48.7)
#5B321C 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) | #3D371A | 0.060 |
| Deuteranopia (no green cones) | #47401C | 0.054 |
| Tritanopia (no blue cones) | #642A2D | 0.041 |
| Achromatopsia (no color) | #3C3C3C | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B321C
#5B321C
oklch(36.4% 0.068 47.8)
- #05455A
#05455A
oklch(36.5% 0.068 227.1)
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 #5B321C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chestnut #742802 ΔE 0.053
- Purple Brown #673A3F ΔE 0.057
- Mud Brown #60460F ΔE 0.064
- Reddy Brown #6E1005 ΔE 0.068
- Charcoal Grey #3C4142 ΔE 0.075
- Onyx #343A40 ΔE 0.083
- Blood #770001 ΔE 0.085
- Dark Olive #373E02 ΔE 0.085
Use #5B321C 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.