#511901
Closest named color: Chocolate Brown (#411900). oklch(30% 0.09 41.2), rgb(81, 25, 1).
Aa
White text reads best on this color (14.10:1).
About this color
#511901 is a dark, moderately saturated brown. In OKLCH its lightness is 30%, its chroma 0.090 and its hue 41°. Its hue sits on the warm side of the wheel. The nearest named color is Chocolate Brown (#411900), ΔE 0.037 away. White text reads best on it, at 14.10:1.
| Hue family | Browns |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.090) |
| Temperature | warm |
| Nearest name | Chocolate Brown (#411900) |
| Black text | 1.48:1 |
| White text | 14.10:1 |
Values
| HEX | #511901 |
| RGB | rgb(81, 25, 1) |
| HSL | hsl(18, 98%, 16%) |
| OKLCH | oklch(30% 0.09 41.2) |
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 #511901 | 14.10:1 | AAA | Lc -103.2 | Preferred for body text |
| Black text on #511901 | 1.48:1 | Fails | Lc 0.0 | Not readable |
| #511901 text on white | 14.10:1 | AAA | Lc 100.1 | Preferred for body text |
| #511901 text on black | 1.48:1 | 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
#FFF3EE
oklch(97.2% 0.015 44.2)
-
Step 100
100
#FDE4DA
oklch(93.6% 0.031 43.1)
-
Step 200
200
#FDCDBB
oklch(88.5% 0.06 41.6)
-
Step 300
300
#FCA98A
oklch(80.9% 0.107 41.3)
-
Step 400
400
#F67542
oklch(70.6% 0.171 41.1)
-
Step 500
500
#E45300
oklch(63% 0.194 41.1)
-
Step 600
600
#C14500
oklch(55.6% 0.171 41.1)
-
Step 700
700
#A33900
oklch(49.1% 0.151 41.1)
-
Step 800
800
#872E00
oklch(42.8% 0.131 41.2)
-
Step 900
900
#712500
oklch(37.6% 0.115 41.2)
-
Step 950
950 (this color)
#511901
oklch(30% 0.09 41.2)
#511901 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) | #2A2300 | 0.087 |
| Deuteranopia (no green cones) | #373000 | 0.080 |
| Tritanopia (no blue cones) | #5A0914 | 0.041 |
| Achromatopsia (no color) | #2B2B2B | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #511901
#511901
oklch(30% 0.09 41.2)
- #003441
#003441
oklch(30.1% 0.055 220.3)
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 #511901, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chocolate Brown #411900 ΔE 0.037
- Mahogany #4A0100 ΔE 0.048
- Deep Brown #410200 ΔE 0.064
- Reddy Brown #6E1005 ΔE 0.065
- Dark Brown #341C02 ΔE 0.065
- Claret #680018 ΔE 0.065
- Burgundy #610023 ΔE 0.070
- Dark Maroon #3C0008 ΔE 0.081
Use #511901 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.