#521E17
Closest named color: Chocolate Brown (#411900). oklch(31.2% 0.08 30), rgb(82, 30, 23).
Aa
White text reads best on this color (13.48:1).
About this color
#521E17 is a dark, moderately saturated red. In OKLCH its lightness is 31%, its chroma 0.080 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.050 away. White text reads best on it, at 13.48:1.
| Hue family | Reds |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.080) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.55:1 |
| White text | 13.48:1 |
Values
| HEX | #521E17 |
| RGB | rgb(82, 30, 23) |
| HSL | hsl(7, 56%, 21%) |
| OKLCH | oklch(31.2% 0.08 30) |
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 #521E17 | 13.48:1 | AAA | Lc -102.7 | Preferred for body text |
| Black text on #521E17 | 1.55:1 | Fails | Lc 0.0 | Not readable |
| #521E17 text on white | 13.48:1 | AAA | Lc 99.5 | Preferred for body text |
| #521E17 text on black | 1.55:1 | 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
#FEF3F0
oklch(97.2% 0.013 35.7)
-
Step 100
100
#FCE4DF
oklch(93.7% 0.027 31.7)
-
Step 200
200
#FACDC5
oklch(88.5% 0.052 29.9)
-
Step 300
300
#F8AA9D
oklch(81% 0.095 29.7)
-
Step 400
400
#F07866
oklch(70.7% 0.151 30.1)
-
Step 500
500
#E74D3B
oklch(63.2% 0.193 30)
-
Step 600
600
#D22314
oklch(55.6% 0.21 30)
-
Step 700
700
#B50F03
oklch(49% 0.195 29.9)
-
Step 800
800
#93150A
oklch(42.7% 0.161 30)
-
Step 900
900
#761C13
oklch(37.6% 0.126 29.8)
-
Step 950
950 (this color)
#521E17
oklch(31.2% 0.08 30)
#521E17 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) | #2C2716 | 0.082 |
| Deuteranopia (no green cones) | #383316 | 0.077 |
| Tritanopia (no blue cones) | #5A131D | 0.030 |
| Achromatopsia (no color) | #2E2E2E | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #521E17
#521E17
oklch(31.2% 0.08 30)
- #003840
#003840
oklch(31.2% 0.054 210.2)
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 #521E17, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.050
- Claret #680018 ΔE 0.058
- Burgundy #610023 ΔE 0.058
- Mahogany #4A0100 ΔE 0.060
- Reddy Brown #6E1005 ΔE 0.061
- Dark Brown #341C02 ΔE 0.075
- Deep Brown #410200 ΔE 0.076
- Blood #770001 ΔE 0.081
Use #521E17 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.