#511E1F
Closest named color: Burgundy (#610023). oklch(31.2% 0.077 21.4), rgb(81, 30, 31).
Aa
White text reads best on this color (13.50:1).
About this color
#511E1F is a dark, moderately saturated red. In OKLCH its lightness is 31%, its chroma 0.077 and its hue 21°. Its hue sits on the warm side of the wheel. The nearest named color is Burgundy (#610023), ΔE 0.053 away. White text reads best on it, at 13.50:1.
| Hue family | Reds |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.077) |
| Temperature | warm |
| Nearest name | Burgundy (#610023) |
| Black text | 1.55:1 |
| White text | 13.50:1 |
Values
| HEX | #511E1F |
| RGB | rgb(81, 30, 31) |
| HSL | hsl(359, 46%, 22%) |
| OKLCH | oklch(31.2% 0.077 21.4) |
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 #511E1F | 13.50:1 | AAA | Lc -102.7 | Preferred for body text |
| Black text on #511E1F | 1.55:1 | Fails | Lc 0.0 | Not readable |
| #511E1F text on white | 13.50:1 | AAA | Lc 99.5 | Preferred for body text |
| #511E1F 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
#F9CDCB
oklch(88.6% 0.05 21.2)
-
Step 300
300
#F6A9A7
oklch(80.8% 0.091 20.9)
-
Step 400
400
#ED7878
oklch(70.7% 0.145 21.4)
-
Step 500
500
#E44E55
oklch(63.2% 0.186 21.6)
-
Step 600
600
#CF263A
oklch(55.6% 0.202 21.5)
-
Step 700
700
#B3132C
oklch(49.1% 0.188 21.6)
-
Step 800
800
#911726
oklch(42.7% 0.155 21.3)
-
Step 900
900
#751D23
oklch(37.8% 0.121 21.6)
-
Step 950
950 (this color)
#511E1F
oklch(31.2% 0.077 21.4)
#511E1F 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) | #2A281F | 0.083 |
| Deuteranopia (no green cones) | #37321E | 0.075 |
| Tritanopia (no blue cones) | #59151F | 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°).
- #511E1F
#511E1F
oklch(31.2% 0.077 21.4)
- #00393C
#00393C
oklch(31.3% 0.053 200.6)
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 #511E1F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burgundy #610023 ΔE 0.053
- Chocolate Brown #411900 ΔE 0.056
- Claret #680018 ΔE 0.057
- Mahogany #4A0100 ΔE 0.062
- Reddy Brown #6E1005 ΔE 0.066
- Deep Brown #410200 ΔE 0.077
- Dark Brown #341C02 ΔE 0.079
- Blood #770001 ΔE 0.084
Use #511E1F 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.