#513B23
Closest named color: Mud Brown (#60460F). oklch(37.1% 0.048 67.8), rgb(81, 59, 35).
Aa
White text reads best on this color (10.50:1).
About this color
#513B23 is a dark, muted brown. In OKLCH its lightness is 37%, its chroma 0.048 and its hue 68°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.052 away. White text reads best on it, at 10.50:1.
| Hue family | Browns |
| Lightness | dark (37%) |
| Chroma | muted (0.048) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 1.99:1 |
| White text | 10.50:1 |
Values
| HEX | #513B23 |
| RGB | rgb(81, 59, 35) |
| HSL | hsl(31, 40%, 23%) |
| OKLCH | oklch(37.1% 0.048 67.8) |
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 #513B23 | 10.50:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #513B23 | 1.99:1 | Fails | Lc 9.6 | Not readable |
| #513B23 text on white | 10.50:1 | AAA | Lc 94.3 | Preferred for body text |
| #513B23 text on black | 1.99:1 | Fails | Lc -8.3 | 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
#F8F5F2
oklch(97.2% 0.005 67.8)
-
Step 100
100
#EFE9E3
oklch(93.7% 0.01 67.7)
-
Step 200
200
#E2D7CB
oklch(88.5% 0.02 70)
-
Step 300
300
#D1BDA8
oklch(81% 0.037 68.6)
-
Step 400
400
#B99A7A
oklch(70.6% 0.058 67.6)
-
Step 500
500
#A88158
oklch(63.1% 0.074 67.2)
-
Step 600
600
#936A3D
oklch(55.6% 0.081 67.4)
-
Step 700
700
#7D582F
oklch(49.1% 0.075 67.3)
-
Step 800
800
#664828
oklch(42.7% 0.062 66.6)
-
Step 900
900 (this color)
#513B23
oklch(37.1% 0.048 67.8)
-
Step 950
950
#302416
oklch(27% 0.03 70.3)
#513B23 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) | #423C21 | 0.028 |
| Deuteranopia (no green cones) | #484123 | 0.024 |
| Tritanopia (no blue cones) | #583635 | 0.038 |
| Achromatopsia (no color) | #3F3F3F | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #513B23
#513B23
oklch(37.1% 0.048 67.8)
- #2B4258
#2B4258
oklch(37% 0.048 248.1)
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 #513B23, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.052
- Charcoal Grey #3C4142 ΔE 0.054
- Purple Brown #673A3F ΔE 0.063
- Dark Olive #373E02 ΔE 0.064
- Onyx #343A40 ΔE 0.067
- Green Brown #544E03 ΔE 0.072
- Chestnut #742802 ΔE 0.077
- Pakistan Green #283618 ΔE 0.079
Use #513B23 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.