#521D01
Closest named color: Chocolate Brown (#411900). oklch(30.8% 0.088 44.3), rgb(82, 29, 1).
Aa
White text reads best on this color (13.68:1).
About this color
#521D01 is a dark, moderately saturated brown. In OKLCH its lightness is 31%, its chroma 0.088 and its hue 44°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.042 away. White text reads best on it, at 13.68:1.
| Hue family | Browns |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.088) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.53:1 |
| White text | 13.68:1 |
Values
| HEX | #521D01 |
| RGB | rgb(82, 29, 1) |
| HSL | hsl(21, 98%, 16%) |
| OKLCH | oklch(30.8% 0.088 44.3) |
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 #521D01 | 13.68:1 | AAA | Lc -102.8 | Preferred for body text |
| Black text on #521D01 | 1.53:1 | Fails | Lc 0.0 | Not readable |
| #521D01 text on white | 13.68:1 | AAA | Lc 99.7 | Preferred for body text |
| #521D01 text on black | 1.53:1 | 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 950.
-
Step 50
50
#FEF3EE
oklch(97.1% 0.014 46.2)
-
Step 100
100
#FCE4DA
oklch(93.6% 0.03 44)
-
Step 200
200
#FBCEBB
oklch(88.5% 0.057 44.1)
-
Step 300
300
#F9AB89
oklch(80.9% 0.103 44.4)
-
Step 400
400
#F3793E
oklch(70.8% 0.166 44.4)
-
Step 500
500
#DF5A00
oklch(63.1% 0.183 44.1)
-
Step 600
600
#BC4B00
oklch(55.6% 0.161 44.3)
-
Step 700
700
#9F3E00
oklch(49.1% 0.142 44.2)
-
Step 800
800
#833200
oklch(42.7% 0.123 44.4)
-
Step 900
900
#6E2900
oklch(37.7% 0.109 44.5)
-
Step 950
950 (this color)
#521D01
oklch(30.8% 0.088 44.3)
#521D01 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) | #2D2600 | 0.082 |
| Deuteranopia (no green cones) | #393200 | 0.075 |
| Tritanopia (no blue cones) | #5B0F18 | 0.045 |
| Achromatopsia (no color) | #2D2D2D | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #521D01
#521D01
oklch(30.8% 0.088 44.3)
- #003645
#003645
oklch(30.9% 0.057 222.9)
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 #521D01, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.042
- Mahogany #4A0100 ΔE 0.058
- Reddy Brown #6E1005 ΔE 0.063
- Claret #680018 ΔE 0.068
- Dark Brown #341C02 ΔE 0.068
- Deep Brown #410200 ΔE 0.073
- Burgundy #610023 ΔE 0.074
- Blood #770001 ΔE 0.083
Use #521D01 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.