#511F1F
Closest named color: Burgundy (#610023). oklch(31.4% 0.075 22.4), rgb(81, 31, 31).
Aa
White text reads best on this color (13.41:1).
About this color
#511F1F is a dark, moderately saturated red. In OKLCH its lightness is 31%, its chroma 0.075 and its hue 22°. Its hue sits on the warm side of the wheel. The nearest named color is Burgundy (#610023), ΔE 0.055 away. White text reads best on it, at 13.41:1.
| Hue family | Reds |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.075) |
| Temperature | warm |
| Nearest name | Burgundy (#610023) |
| Black text | 1.56:1 |
| White text | 13.41:1 |
Values
| HEX | #511F1F |
| RGB | rgb(81, 31, 31) |
| HSL | hsl(0, 45%, 22%) |
| OKLCH | oklch(31.4% 0.075 22.4) |
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 #511F1F | 13.41:1 | AAA | Lc -102.7 | Preferred for body text |
| Black text on #511F1F | 1.56:1 | Fails | Lc 0.0 | Not readable |
| #511F1F text on white | 13.41:1 | AAA | Lc 99.4 | Preferred for body text |
| #511F1F text on black | 1.56:1 | 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
#FDF3F2
oklch(97.2% 0.011 24.3)
-
Step 100
100
#FBE4E2
oklch(93.7% 0.025 23.6)
-
Step 200
200
#F9CDCA
oklch(88.5% 0.05 22.7)
-
Step 300
300
#F5AAA6
oklch(80.9% 0.089 22.6)
-
Step 400
400
#EC7977
oklch(70.7% 0.142 22.4)
-
Step 500
500
#E35054
oklch(63.2% 0.183 22.5)
-
Step 600
600
#CE2A39
oklch(55.7% 0.198 22.4)
-
Step 700
700
#B2182B
oklch(49.2% 0.185 22.4)
-
Step 800
800
#901A25
oklch(42.7% 0.152 22.3)
-
Step 900
900
#741E22
oklch(37.7% 0.119 22.6)
-
Step 950
950 (this color)
#511F1F
oklch(31.4% 0.075 22.4)
#511F1F 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) | #2B281F | 0.080 |
| Deuteranopia (no green cones) | #38331E | 0.074 |
| Tritanopia (no blue cones) | #59171F | 0.022 |
| Achromatopsia (no color) | #2F2F2F | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #511F1F
#511F1F
oklch(31.4% 0.075 22.4)
- #00393D
#00393D
oklch(31.4% 0.053 202.5)
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 #511F1F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burgundy #610023 ΔE 0.055
- Chocolate Brown #411900 ΔE 0.056
- Claret #680018 ΔE 0.058
- Mahogany #4A0100 ΔE 0.064
- Reddy Brown #6E1005 ΔE 0.065
- Dark Brown #341C02 ΔE 0.079
- Deep Brown #410200 ΔE 0.079
- Blood #770001 ΔE 0.084
Use #511F1F 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.