#661840
Closest named color: Merlot (#730039). oklch(35.3% 0.117 353.5), rgb(102, 24, 64).
Aa
White text reads best on this color (11.86:1).
About this color
#661840 is a dark, moderately saturated red. In OKLCH its lightness is 35%, its chroma 0.117 and its hue 353°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.033 away. White text reads best on it, at 11.86:1.
| Hue family | Reds |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.117) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.76:1 |
| White text | 11.86:1 |
Values
| HEX | #661840 |
| RGB | rgb(102, 24, 64) |
| HSL | hsl(329, 62%, 25%) |
| OKLCH | oklch(35.3% 0.117 353.5) |
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 #661840 | 11.86:1 | AAA | Lc -100.0 | Preferred for body text |
| Black text on #661840 | 1.76:1 | Fails | Lc 7.6 | Not readable |
| #661840 text on white | 11.86:1 | AAA | Lc 96.2 | Preferred for body text |
| #661840 text on black | 1.76:1 | 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
#FCF2F6
oklch(97% 0.012 351)
-
Step 100
100
#F9E3EB
oklch(93.6% 0.026 353.5)
-
Step 200
200
#F4CCDC
oklch(88.4% 0.049 352.1)
-
Step 300
300
#EEA9C5
oklch(80.8% 0.088 353.2)
-
Step 400
400
#E379A7
oklch(70.8% 0.141 353.9)
-
Step 500
500
#D75192
oklch(63.1% 0.18 353.4)
-
Step 600
600
#C22E7C
oklch(55.6% 0.195 353.5)
-
Step 700
700
#A71E69
oklch(49.1% 0.182 353.2)
-
Step 800
800
#881D55
oklch(42.7% 0.15 353.7)
-
Step 900
900 (this color)
#661840
oklch(35.3% 0.117 353.5)
-
Step 950
950
#401429
oklch(26.9% 0.073 353.5)
#661840 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) | #262E41 | 0.131 |
| Deuteranopia (no green cones) | #3C3C3E | 0.116 |
| Tritanopia (no blue cones) | #6E1129 | 0.041 |
| Achromatopsia (no color) | #373737 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #661840
#661840
oklch(35.3% 0.117 353.5)
- #004638
#004638
oklch(35.2% 0.067 173.7)
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 #661840, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Merlot #730039 ΔE 0.033
- Grape Purple #5D1451 ΔE 0.041
- Velvet #750851 ΔE 0.045
- Burgundy #610023 ΔE 0.052
- Bordeaux #7B002C ΔE 0.055
- Rich Purple #720058 ΔE 0.055
- Wine #80013F ΔE 0.056
- Red Purple #820747 ΔE 0.061
Use #661840 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.