#661C43
Closest named color: Merlot (#730039). oklch(35.9% 0.113 351.9), rgb(102, 28, 67).
Aa
White text reads best on this color (11.58:1).
About this color
#661C43 is a dark, moderately saturated red. In OKLCH its lightness is 36%, its chroma 0.113 and its hue 352°. Its hue sits on the warm side of the wheel. The nearest named color is Merlot (#730039), ΔE 0.038 away. White text reads best on it, at 11.58:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.113) |
| Temperature | warm |
| Nearest name | Merlot (#730039) |
| Black text | 1.81:1 |
| White text | 11.58:1 |
Values
| HEX | #661C43 |
| RGB | rgb(102, 28, 67) |
| HSL | hsl(328, 57%, 25%) |
| OKLCH | oklch(35.9% 0.113 351.9) |
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 #661C43 | 11.58:1 | AAA | Lc -99.6 | Preferred for body text |
| Black text on #661C43 | 1.81:1 | Fails | Lc 8.1 | Not readable |
| #661C43 text on white | 11.58:1 | AAA | Lc 95.8 | Preferred for body text |
| #661C43 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
#FCF2F6
oklch(97% 0.012 351)
-
Step 100
100
#F8E3EB
oklch(93.5% 0.025 352.5)
-
Step 200
200
#F3CDDC
oklch(88.5% 0.047 352.4)
-
Step 300
300
#ECAAC6
oklch(80.8% 0.085 352)
-
Step 400
400
#E07AAA
oklch(70.7% 0.137 351.6)
-
Step 500
500
#D45495
oklch(63.1% 0.174 351.7)
-
Step 600
600
#BF337F
oklch(55.6% 0.189 351.8)
-
Step 700
700
#A4236B
oklch(49% 0.176 351.8)
-
Step 800
800
#862057
oklch(42.7% 0.146 352.2)
-
Step 900
900 (this color)
#661C43
oklch(35.9% 0.113 351.9)
-
Step 950
950
#3F152A
oklch(26.9% 0.071 351.8)
#661C43 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) | #283044 | 0.126 |
| Deuteranopia (no green cones) | #3D3E41 | 0.113 |
| Tritanopia (no blue cones) | #6E172D | 0.040 |
| Achromatopsia (no color) | #393939 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #661C43
#661C43
oklch(35.9% 0.113 351.9)
- #004838
#004838
oklch(35.8% 0.07 171.6)
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 #661C43, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Merlot #730039 ΔE 0.038
- Grape Purple #5D1451 ΔE 0.040
- Velvet #750851 ΔE 0.045
- Rich Purple #720058 ΔE 0.055
- Wine #80013F ΔE 0.056
- Bordeaux #7B002C ΔE 0.058
- Burgundy #610023 ΔE 0.059
- Red Purple #820747 ΔE 0.060
Use #661C43 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.