#661539
Closest named color: Merlot (#730039). oklch(34.7% 0.118 358.5), rgb(102, 21, 57).
Aa
White text reads best on this color (12.12:1).
About this color
#661539 is a dark, moderately saturated red. In OKLCH its lightness is 35%, its chroma 0.118 and its hue 358°. 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 12.12:1.
| Hue family | Reds |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.118) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.73:1 |
| White text | 12.12:1 |
Values
| HEX | #661539 |
| RGB | rgb(102, 21, 57) |
| HSL | hsl(333, 66%, 24%) |
| OKLCH | oklch(34.7% 0.118 358.5) |
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 #661539 | 12.12:1 | AAA | Lc -100.3 | Preferred for body text |
| Black text on #661539 | 1.73:1 | Fails | Lc 0.0 | Not readable |
| #661539 text on white | 12.12:1 | AAA | Lc 96.6 | Preferred for body text |
| #661539 text on black | 1.73:1 | 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
#FDF2F5
oklch(97.1% 0.012 358.8)
-
Step 100
100
#F9E3E9
oklch(93.5% 0.025 359.2)
-
Step 200
200
#F6CCD9
oklch(88.5% 0.05 357.6)
-
Step 300
300
#F0A9C0
oklch(80.9% 0.088 358.2)
-
Step 400
400
#E5789F
oklch(70.6% 0.141 358.6)
-
Step 500
500
#DA4F88
oklch(63% 0.181 358.3)
-
Step 600
600
#C62B72
oklch(55.7% 0.197 358.5)
-
Step 700
700
#AA1B5F
oklch(49.1% 0.182 358.6)
-
Step 800
800
#8A1B4E
oklch(42.7% 0.151 358.3)
-
Step 900
900 (this color)
#661539
oklch(34.7% 0.118 358.5)
-
Step 950
950
#421326
oklch(27% 0.076 358.4)
#661539 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) | #262C3A | 0.133 |
| Deuteranopia (no green cones) | #3D3B37 | 0.118 |
| Tritanopia (no blue cones) | #6F0925 | 0.036 |
| Achromatopsia (no color) | #363636 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #661539
#661539
oklch(34.7% 0.118 358.5)
- #00443A
#00443A
oklch(34.6% 0.063 178.9)
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 #661539, 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 0.041
- Bordeaux #7B002C ΔE 0.049
- Grape Purple #5D1451 ΔE 0.050
- Claret #680018 ΔE 0.050
- Velvet #750851 ΔE 0.053
- Wine Red #7B0323 ΔE 0.056
- Wine #80013F ΔE 0.056
Use #661539 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.