#660D33
Closest named color: Burgundy (#610023). oklch(33.9% 0.124 1.6), rgb(102, 13, 51).
Aa
White text reads best on this color (12.57:1).
About this color
#660D33 is a dark, moderately saturated red. In OKLCH its lightness is 34%, its chroma 0.124 and its hue 2°. Its hue sits on the warm side of the wheel. The nearest named color is Burgundy (#610023), ΔE 0.030 away. White text reads best on it, at 12.57:1.
| Hue family | Reds |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.124) |
| Temperature | warm |
| Nearest name | Burgundy (#610023) |
| Black text | 1.67:1 |
| White text | 12.57:1 |
Values
| HEX | #660D33 |
| RGB | rgb(102, 13, 51) |
| HSL | hsl(334, 77%, 23%) |
| OKLCH | oklch(33.9% 0.124 1.6) |
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 #660D33 | 12.57:1 | AAA | Lc -100.8 | Preferred for body text |
| Black text on #660D33 | 1.67:1 | Fails | Lc 0.0 | Not readable |
| #660D33 text on white | 12.57:1 | AAA | Lc 97.2 | Preferred for body text |
| #660D33 text on black | 1.67:1 | 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 900.
-
Step 50
50
#FDF2F5
oklch(97.1% 0.012 358.8)
-
Step 100
100
#FAE3E8
oklch(93.6% 0.026 2.8)
-
Step 200
200
#F8CCD7
oklch(88.6% 0.052 1.5)
-
Step 300
300
#F4A8BC
oklch(81% 0.093 2.1)
-
Step 400
400
#EA759A
oklch(70.7% 0.149 1.6)
-
Step 500
500
#DF4A81
oklch(63% 0.19 1.6)
-
Step 600
600
#CB216B
oklch(55.7% 0.207 1.6)
-
Step 700
700
#AF0E59
oklch(49.2% 0.192 1.7)
-
Step 800
800
#8E1349
oklch(42.7% 0.159 1.5)
-
Step 900
900 (this color)
#660D33
oklch(33.9% 0.124 1.6)
-
Step 950
950
#431224
oklch(27% 0.078 1.1)
#660D33 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) | #242834 | 0.140 |
| Deuteranopia (no green cones) | #3C3931 | 0.124 |
| Tritanopia (no blue cones) | #70001F | 0.037 |
| Achromatopsia (no color) | #333333 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #660D33
#660D33
oklch(33.9% 0.124 1.6)
- #00423A
#00423A
oklch(34% 0.061 181.5)
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 #660D33, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burgundy #610023 ΔE 0.030
- Merlot #730039 ΔE 0.030
- Claret #680018 ΔE 0.040
- Bordeaux #7B002C ΔE 0.047
- Wine Red #7B0323 ΔE 0.053
- Grape Purple #5D1451 ΔE 0.057
- Wine #80013F ΔE 0.059
- Velvet #750851 ΔE 0.060
Use #660D33 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.