#510027
Closest named color: Burgundy (#610023). oklch(28.2% 0.114 359.9), rgb(81, 0, 39).
Aa
White text reads best on this color (15.22:1).
About this color
#510027 is a dark, moderately saturated red. In OKLCH its lightness is 28%, its chroma 0.114 and its hue 360°. Its hue sits on the warm side of the wheel. The nearest named color is Burgundy (#610023), ΔE 0.041 away. White text reads best on it, at 15.22:1.
| Hue family | Reds |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.114) |
| Temperature | warm |
| Nearest name | Burgundy (#610023) |
| Black text | 1.37:1 |
| White text | 15.22:1 |
Values
| HEX | #510027 |
| RGB | rgb(81, 0, 39) |
| HSL | hsl(331, 100%, 16%) |
| OKLCH | oklch(28.2% 0.114 359.9) |
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 #510027 | 15.22:1 | AAA | Lc -103.7 | Preferred for body text |
| Black text on #510027 | 1.37:1 | Fails | Lc 0.0 | Not readable |
| #510027 text on white | 15.22:1 | AAA | Lc 100.7 | Preferred for body text |
| #510027 text on black | 1.37:1 | 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
#FFF1F5
oklch(97% 0.016 358)
-
Step 100
100
#FFE1E9
oklch(93.7% 0.035 359.8)
-
Step 200
200
#FFC8D7
oklch(88.5% 0.065 0.4)
-
Step 300
300
#FFA0BD
oklch(80.9% 0.117 0.3)
-
Step 400
400
#FF5D9B
oklch(70.7% 0.203 0.1)
-
Step 500
500
#F60083
oklch(63% 0.256 360)
-
Step 600
600
#D0006E
oklch(55.6% 0.225 359.9)
-
Step 700
700
#B0005C
oklch(49% 0.199 360)
-
Step 800
800
#92004B
oklch(42.7% 0.173 0.1)
-
Step 900
900
#7B003E
oklch(37.7% 0.153 0.2)
-
Step 950
950 (this color)
#510027
oklch(28.2% 0.114 359.9)
#510027 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) | #171C28 | 0.130 |
| Deuteranopia (no green cones) | #2C2B25 | 0.117 |
| Tritanopia (no blue cones) | #590013 | 0.040 |
| Achromatopsia (no color) | #262626 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #510027
#510027
oklch(28.2% 0.114 359.9)
- #00312A
#00312A
oklch(28.1% 0.051 180.2)
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 #510027, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burgundy #610023 ΔE 0.041
- Dark Plum #3F012C ΔE 0.047
- Aubergine #3D0734 ΔE 0.054
- Eggplant Purple #430541 ΔE 0.061
- Mahogany #4A0100 ΔE 0.062
- Claret #680018 ΔE 0.063
- Deep Violet #490648 ΔE 0.065
- Eggplant #380835 ΔE 0.066
Use #510027 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.