#511E1E
Closest named color: Burgundy (#610023). oklch(31.2% 0.077 22.6), rgb(81, 30, 30).
Aa
White text reads best on this color (13.51:1).
About this color
#511E1E is a dark, moderately saturated red. In OKLCH its lightness is 31%, its chroma 0.077 and its hue 23°. Its hue sits on the warm side of the wheel. The nearest named color is Burgundy (#610023), ΔE 0.054 away. White text reads best on it, at 13.51:1.
| Hue family | Reds |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.077) |
| Temperature | warm |
| Nearest name | Burgundy (#610023) |
| Black text | 1.55:1 |
| White text | 13.51:1 |
Values
| HEX | #511E1E |
| RGB | rgb(81, 30, 30) |
| HSL | hsl(0, 46%, 22%) |
| OKLCH | oklch(31.2% 0.077 22.6) |
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 #511E1E | 13.51:1 | AAA | Lc -102.8 | Preferred for body text |
| Black text on #511E1E | 1.55:1 | Fails | Lc 0.0 | Not readable |
| #511E1E text on white | 13.51:1 | AAA | Lc 99.5 | Preferred for body text |
| #511E1E 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FBE3E2
oklch(93.5% 0.026 20.5)
-
Step 200
200
#F9CDCA
oklch(88.5% 0.05 22.7)
-
Step 300
300
#F6A9A5
oklch(80.8% 0.092 22.6)
-
Step 400
400
#EE7876
oklch(70.8% 0.146 22.5)
-
Step 500
500
#E44E52
oklch(63.1% 0.186 22.7)
-
Step 600
600
#CF2637
oklch(55.5% 0.202 22.5)
-
Step 700
700
#B31429
oklch(49.1% 0.188 22.7)
-
Step 800
800
#911723
oklch(42.6% 0.155 22.7)
-
Step 900
900
#751D21
oklch(37.8% 0.122 22.9)
-
Step 950
950 (this color)
#511E1E
oklch(31.2% 0.077 22.6)
#511E1E 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) | #2A281E | 0.083 |
| Deuteranopia (no green cones) | #37321D | 0.075 |
| Tritanopia (no blue cones) | #59151E | 0.023 |
| Achromatopsia (no color) | #2E2E2E | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #511E1E
#511E1E
oklch(31.2% 0.077 22.6)
- #00383C
#00383C
oklch(31% 0.053 202.6)
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 #511E1E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burgundy #610023 ΔE 0.054
- Chocolate Brown #411900 ΔE 0.055
- Claret #680018 ΔE 0.057
- Mahogany #4A0100 ΔE 0.062
- Reddy Brown #6E1005 ΔE 0.065
- Deep Brown #410200 ΔE 0.077
- Dark Brown #341C02 ΔE 0.078
- Blood #770001 ΔE 0.084
Use #511E1E 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.