#521E01
Closest named color: Chocolate Brown (#411900). oklch(30.9% 0.087 45.3), rgb(82, 30, 1).
Aa
White text reads best on this color (13.59:1).
About this color
#521E01 is a dark, moderately saturated brown. In OKLCH its lightness is 31%, its chroma 0.087 and its hue 45°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.043 away. White text reads best on it, at 13.59:1.
| Hue family | Browns |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.087) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.54:1 |
| White text | 13.59:1 |
Values
| HEX | #521E01 |
| RGB | rgb(82, 30, 1) |
| HSL | hsl(21, 98%, 16%) |
| OKLCH | oklch(30.9% 0.087 45.3) |
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 #521E01 | 13.59:1 | AAA | Lc -102.8 | Preferred for body text |
| Black text on #521E01 | 1.54:1 | Fails | Lc 0.0 | Not readable |
| #521E01 text on white | 13.59:1 | AAA | Lc 99.6 | Preferred for body text |
| #521E01 text on black | 1.54:1 | 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
#FACEBA
oklch(88.4% 0.057 45.8)
-
Step 300
300
#F9AC89
oklch(81% 0.103 45.3)
-
Step 400
400
#F17A3D
oklch(70.6% 0.164 45.5)
-
Step 500
500
#DD5C00
oklch(63.1% 0.18 45.2)
-
Step 600
600
#BB4D00
oklch(55.7% 0.158 45.4)
-
Step 700
700
#9E4000
oklch(49.2% 0.14 45.4)
-
Step 800
800
#823300
oklch(42.6% 0.121 45.2)
-
Step 900
900
#6D2A00
oklch(37.7% 0.107 45.6)
-
Step 950
950 (this color)
#521E01
oklch(30.9% 0.087 45.3)
#521E01 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) | #2D2700 | 0.081 |
| Deuteranopia (no green cones) | #3A3200 | 0.072 |
| Tritanopia (no blue cones) | #5B1119 | 0.046 |
| Achromatopsia (no color) | #2E2E2E | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #521E01
#521E01
oklch(30.9% 0.087 45.3)
- #003646
#003646
oklch(30.9% 0.058 224.4)
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 #521E01, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.043
- Mahogany #4A0100 ΔE 0.060
- Reddy Brown #6E1005 ΔE 0.063
- Dark Brown #341C02 ΔE 0.069
- Claret #680018 ΔE 0.069
- Burgundy #610023 ΔE 0.075
- Deep Brown #410200 ΔE 0.075
- Chestnut #742802 ΔE 0.082
Use #521E01 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.