#66213B
Closest named color: Merlot (#730039). oklch(36.2% 0.102 0.3), rgb(102, 33, 59).
Aa
White text reads best on this color (11.37:1).
About this color
#66213B is a dark, moderately saturated red. In OKLCH its lightness is 36%, its chroma 0.102 and its hue 0°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.043 away. White text reads best on it, at 11.37:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.102) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.84:1 |
| White text | 11.37:1 |
Values
| HEX | #66213B |
| RGB | rgb(102, 33, 59) |
| HSL | hsl(337, 51%, 26%) |
| OKLCH | oklch(36.2% 0.102 0.3) |
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 #66213B | 11.37:1 | AAA | Lc -99.4 | Preferred for body text |
| Black text on #66213B | 1.84:1 | Fails | Lc 8.3 | Not readable |
| #66213B text on white | 11.37:1 | AAA | Lc 95.6 | Preferred for body text |
| #66213B text on black | 1.84:1 | 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
#FCF3F5
oklch(97.2% 0.01 2)
-
Step 100
100
#F8E4E9
oklch(93.6% 0.023 0.5)
-
Step 200
200
#F2CED8
oklch(88.5% 0.042 359.4)
-
Step 300
300
#EBACBE
oklch(80.8% 0.077 0.2)
-
Step 400
400
#DE7E9D
oklch(70.6% 0.123 0.1)
-
Step 500
500
#D25A85
oklch(63% 0.157 0.2)
-
Step 600
600
#BD3C6F
oklch(55.6% 0.17 0.1)
-
Step 700
700
#A32D5C
oklch(49.2% 0.158 0.7)
-
Step 800
800
#84274C
oklch(42.7% 0.131 360)
-
Step 900
900 (this color)
#66213B
oklch(36.2% 0.102 0.3)
-
Step 950
950
#3F1725
oklch(27.1% 0.065 0.4)
#66213B 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) | #2E323C | 0.114 |
| Deuteranopia (no green cones) | #403F39 | 0.105 |
| Tritanopia (no blue cones) | #6F1A2B | 0.031 |
| Achromatopsia (no color) | #3A3A3A | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66213B
#66213B
oklch(36.2% 0.102 0.3)
- #00493F
#00493F
oklch(36.3% 0.066 179.7)
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 #66213B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Merlot #730039 ΔE 0.043
- Bordeaux #7B002C ΔE 0.053
- Burgundy #610023 ΔE 0.056
- Wine Red #7B0323 ΔE 0.057
- Claret #680018 ΔE 0.058
- Grape Purple #5D1451 ΔE 0.058
- Wine #80013F ΔE 0.060
- Velvet #750851 ΔE 0.060
Use #66213B 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.