#66163D
Closest named color: Merlot (#730039). oklch(35% 0.118 355.5), rgb(102, 22, 61).
Aa
White text reads best on this color (12.01:1).
About this color
#66163D is a dark, moderately saturated red. In OKLCH its lightness is 35%, its chroma 0.118 and its hue 355°. 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 12.01:1.
| Hue family | Reds |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.118) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.74:1 |
| White text | 12.01:1 |
Values
| HEX | #66163D |
| RGB | rgb(102, 22, 61) |
| HSL | hsl(331, 65%, 24%) |
| OKLCH | oklch(35% 0.118 355.5) |
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 #66163D | 12.01:1 | AAA | Lc -100.2 | Preferred for body text |
| Black text on #66163D | 1.74:1 | Fails | Lc 7.4 | Not readable |
| #66163D text on white | 12.01:1 | AAA | Lc 96.5 | Preferred for body text |
| #66163D text on black | 1.74:1 | 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
#F9E3EA
oklch(93.6% 0.026 356.3)
-
Step 200
200
#F5CCDA
oklch(88.4% 0.049 355.6)
-
Step 300
300
#EFA9C3
oklch(80.9% 0.088 355.2)
-
Step 400
400
#E478A4
oklch(70.7% 0.142 355.6)
-
Step 500
500
#D9508E
oklch(63.1% 0.181 355.5)
-
Step 600
600
#C42C78
oklch(55.6% 0.197 355.5)
-
Step 700
700
#A91C65
oklch(49.2% 0.183 355.5)
-
Step 800
800
#891B52
oklch(42.6% 0.152 355.6)
-
Step 900
900 (this color)
#66163D
oklch(35% 0.118 355.5)
-
Step 950
950
#411328
oklch(26.9% 0.076 355.1)
#66163D 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) | #262D3E | 0.132 |
| Deuteranopia (no green cones) | #3C3C3B | 0.119 |
| Tritanopia (no blue cones) | #6F0D27 | 0.040 |
| Achromatopsia (no color) | #363636 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #66163D
#66163D
oklch(35% 0.118 355.5)
- #004539
#004539
oklch(34.9% 0.065 176.2)
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 #66163D, 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 0.044
- Burgundy #610023 ΔE 0.047
- Velvet #750851 ΔE 0.048
- Bordeaux #7B002C ΔE 0.052
- Wine #80013F ΔE 0.056
- Claret #680018 ΔE 0.057
- Rich Purple #720058 ΔE 0.058
Use #66163D 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.