#66033C
Closest named color: Merlot (#730039). oklch(33.6% 0.135 353.7), rgb(102, 3, 60).
Aa
White text reads best on this color (12.77:1).
About this color
#66033C is a dark, moderately saturated red. In OKLCH its lightness is 34%, its chroma 0.135 and its hue 354°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.031 away. White text reads best on it, at 12.77:1.
| Hue family | Reds |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.135) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.64:1 |
| White text | 12.77:1 |
Values
| HEX | #66033C |
| RGB | rgb(102, 3, 60) |
| HSL | hsl(325, 94%, 21%) |
| OKLCH | oklch(33.6% 0.135 353.7) |
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 #66033C | 12.77:1 | AAA | Lc -100.7 | Preferred for body text |
| Black text on #66033C | 1.64:1 | Fails | Lc 0.0 | Not readable |
| #66033C text on white | 12.77:1 | AAA | Lc 97.1 | Preferred for body text |
| #66033C text on black | 1.64:1 | 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
#FDF2F6
oklch(97.1% 0.013 353.1)
-
Step 100
100
#FBE2EB
oklch(93.6% 0.03 353.9)
-
Step 200
200
#F8CADC
oklch(88.4% 0.057 352.9)
-
Step 300
300
#F5A5C5
oklch(80.9% 0.102 354)
-
Step 400
400
#EB71A8
oklch(70.7% 0.161 353.7)
-
Step 500
500
#E14293
oklch(63.1% 0.207 353.5)
-
Step 600
600
#CC097D
oklch(55.6% 0.226 353.6)
-
Step 700
700
#AE0069
oklch(49.1% 0.203 353.8)
-
Step 800
800
#8F0356
oklch(42.7% 0.174 353.6)
-
Step 900
900 (this color)
#66033C
oklch(33.6% 0.135 353.7)
-
Step 950
950
#440F29
oklch(27% 0.086 354.3)
#66033C 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) | #1C273D | 0.156 |
| Deuteranopia (no green cones) | #38383A | 0.134 |
| Tritanopia (no blue cones) | #6F0021 | 0.051 |
| Achromatopsia (no color) | #323232 | 0.137 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66033C
#66033C
oklch(33.6% 0.135 353.7)
- #004134
#004134
oklch(33.5% 0.064 174)
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 #66033C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Merlot #730039 ΔE 0.031
- Grape Purple #5D1451 ΔE 0.042
- Burgundy #610023 ΔE 0.043
- Velvet #750851 ΔE 0.048
- Rich Purple #720058 ΔE 0.054
- Bordeaux #7B002C ΔE 0.058
- Claret #680018 ΔE 0.059
- Wine #80013F ΔE 0.059
Use #66033C 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.