#66013B
Closest named color: Merlot (#730039). oklch(33.4% 0.137 354.2), rgb(102, 1, 59).
Aa
White text reads best on this color (12.86:1).
About this color
#66013B is a dark, moderately saturated red. In OKLCH its lightness is 33%, its chroma 0.137 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 12.86:1.
| Hue family | Reds |
| Lightness | dark (33%) |
| Chroma | moderately saturated (0.137) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.63:1 |
| White text | 12.86:1 |
Values
| HEX | #66013B |
| RGB | rgb(102, 1, 59) |
| HSL | hsl(326, 98%, 20%) |
| OKLCH | oklch(33.4% 0.137 354.2) |
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 #66013B | 12.86:1 | AAA | Lc -100.7 | Preferred for body text |
| Black text on #66013B | 1.63:1 | Fails | Lc 0.0 | Not readable |
| #66013B text on white | 12.86:1 | AAA | Lc 97.1 | Preferred for body text |
| #66013B text on black | 1.63:1 | 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
#FEF2F6
oklch(97.2% 0.014 355)
-
Step 100
100
#FBE2EB
oklch(93.6% 0.03 353.9)
-
Step 200
200
#F9CADB
oklch(88.5% 0.057 354.7)
-
Step 300
300
#F5A5C5
oklch(80.9% 0.102 354)
-
Step 400
400
#EC70A7
oklch(70.7% 0.163 354.2)
-
Step 500
500
#E24092
oklch(63.1% 0.21 354)
-
Step 600
600
#CD037C
oklch(55.6% 0.228 354.1)
-
Step 700
700
#AE0068
oklch(49.1% 0.202 354.2)
-
Step 800
800
#900155
oklch(42.8% 0.175 354.3)
-
Step 900
900 (this color)
#66013B
oklch(33.4% 0.137 354.2)
-
Step 950
950
#440F29
oklch(27% 0.086 354.3)
#66013B 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) | #1C263C | 0.156 |
| Deuteranopia (no green cones) | #383839 | 0.136 |
| Tritanopia (no blue cones) | #6F0020 | 0.052 |
| Achromatopsia (no color) | #323232 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66013B
#66013B
oklch(33.4% 0.137 354.2)
- #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 #66013B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Merlot #730039 ΔE 0.031
- Burgundy #610023 ΔE 0.042
- Grape Purple #5D1451 ΔE 0.044
- Velvet #750851 ΔE 0.049
- Rich Purple #720058 ΔE 0.055
- Claret #680018 ΔE 0.058
- Bordeaux #7B002C ΔE 0.058
- Wine #80013F ΔE 0.060
Use #66013B 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.