#661D3F
Closest named color: Merlot (#730039). oklch(35.8% 0.11 355.5), rgb(102, 29, 63).
Aa
White text reads best on this color (11.58:1).
About this color
#661D3F is a dark, moderately saturated red. In OKLCH its lightness is 36%, its chroma 0.110 and its hue 355°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.037 away. White text reads best on it, at 11.58:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.110) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.81:1 |
| White text | 11.58:1 |
Values
| HEX | #661D3F |
| RGB | rgb(102, 29, 63) |
| HSL | hsl(332, 56%, 26%) |
| OKLCH | oklch(35.8% 0.11 355.5) |
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 #661D3F | 11.58:1 | AAA | Lc -99.6 | Preferred for body text |
| Black text on #661D3F | 1.81:1 | Fails | Lc 8.0 | Not readable |
| #661D3F text on white | 11.58:1 | AAA | Lc 95.9 | Preferred for body text |
| #661D3F text on black | 1.81:1 | 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
#FCF3F6
oklch(97.2% 0.01 354.9)
-
Step 100
100
#F8E4EA
oklch(93.7% 0.023 357.4)
-
Step 200
200
#F3CDDA
oklch(88.4% 0.046 355.5)
-
Step 300
300
#ECABC3
oklch(80.9% 0.082 355.2)
-
Step 400
400
#E07CA4
oklch(70.8% 0.131 355.6)
-
Step 500
500
#D4568E
oklch(63.1% 0.168 355.3)
-
Step 600
600
#BF3578
oklch(55.5% 0.184 355.2)
-
Step 700
700
#A52665
oklch(49.2% 0.171 355.4)
-
Step 800
800
#862252
oklch(42.7% 0.142 355.6)
-
Step 900
900 (this color)
#661D3F
oklch(35.8% 0.11 355.5)
-
Step 950
950
#401528
oklch(27% 0.071 355.4)
#661D3F 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) | #2A3040 | 0.122 |
| Deuteranopia (no green cones) | #3E3E3D | 0.111 |
| Tritanopia (no blue cones) | #6E172B | 0.036 |
| Achromatopsia (no color) | #393939 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #661D3F
#661D3F
oklch(35.8% 0.11 355.5)
- #00483B
#00483B
oklch(35.9% 0.067 175.4)
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 #661D3F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Merlot #730039 ΔE 0.037
- Grape Purple #5D1451 ΔE 0.047
- Velvet #750851 ΔE 0.050
- Bordeaux #7B002C ΔE 0.054
- Burgundy #610023 ΔE 0.055
- Wine #80013F ΔE 0.057
- Wine Red #7B0323 ΔE 0.061
- Claret #680018 ΔE 0.061
Use #661D3F 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.