#523D09
Closest named color: Mud Brown (#60460F). oklch(37.3% 0.071 84.6), rgb(82, 61, 9).
Aa
White text reads best on this color (10.34:1).
About this color
#523D09 is a dark, moderately saturated brown. In OKLCH its lightness is 37%, its chroma 0.071 and its hue 85°. Its hue sits on the warm side of the wheel. The nearest named color is Mud Brown (#60460F), ΔE 0.039 away. White text reads best on it, at 10.34:1.
| Hue family | Browns |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.071) |
| Temperature | warm |
| Nearest name | Mud Brown (#60460F) |
| Black text | 2.03:1 |
| White text | 10.34:1 |
Values
| HEX | #523D09 |
| RGB | rgb(82, 61, 9) |
| HSL | hsl(43, 80%, 18%) |
| OKLCH | oklch(37.3% 0.071 84.6) |
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 #523D09 | 10.34:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #523D09 | 2.03:1 | Fails | Lc 10.1 | Not readable |
| #523D09 text on white | 10.34:1 | AAA | Lc 93.9 | Preferred for body text |
| #523D09 text on black | 2.03:1 | Fails | Lc -8.7 | 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
#F8F5F0
oklch(97.1% 0.007 80.7)
-
Step 100
100
#EFE9DF
oklch(93.6% 0.015 80.7)
-
Step 200
200
#E2D8C4
oklch(88.5% 0.029 84.6)
-
Step 300
300
#D1BE9A
oklch(80.8% 0.053 83.3)
-
Step 400
400
#B99D61
oklch(70.8% 0.085 85.3)
-
Step 500
500
#A88330
oklch(63% 0.109 84.2)
-
Step 600
600
#926D00
oklch(55.7% 0.114 85)
-
Step 700
700
#7B5B00
oklch(49.1% 0.101 84.7)
-
Step 800
800
#654A00
oklch(42.7% 0.087 84.5)
-
Step 900
900 (this color)
#523D09
oklch(37.3% 0.071 84.6)
-
Step 950
950
#312409
oklch(26.9% 0.045 82.8)
#523D09 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) | #463D01 | 0.025 |
| Deuteranopia (no green cones) | #4B420C | 0.019 |
| Tritanopia (no blue cones) | #5A3633 | 0.063 |
| Achromatopsia (no color) | #404040 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #523D09
#523D09
oklch(37.3% 0.071 84.6)
- #2E3F66
#2E3F66
oklch(37.3% 0.071 265.3)
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 #523D09, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mud Brown #60460F ΔE 0.039
- Dark Olive #373E02 ΔE 0.050
- Green Brown #544E03 ΔE 0.053
- Charcoal Grey #3C4142 ΔE 0.075
- Olive Brown #645403 ΔE 0.079
- Navy Green #35530A ΔE 0.079
- Pakistan Green #283618 ΔE 0.080
- Chestnut #742802 ΔE 0.081
Use #523D09 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.