#661C48
Closest named color: Grape Purple (#5D1451). oklch(36.1% 0.116 347.9), rgb(102, 28, 72).
Aa
White text reads best on this color (11.50:1).
About this color
#661C48 is a dark, moderately saturated red. In OKLCH its lightness is 36%, its chroma 0.116 and its hue 348°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.034 away. White text reads best on it, at 11.50:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.116) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.82:1 |
| White text | 11.50:1 |
Values
| HEX | #661C48 |
| RGB | rgb(102, 28, 72) |
| HSL | hsl(324, 57%, 25%) |
| OKLCH | oklch(36.1% 0.116 347.9) |
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 #661C48 | 11.50:1 | AAA | Lc -99.5 | Preferred for body text |
| Black text on #661C48 | 1.82:1 | Fails | Lc 8.2 | Not readable |
| #661C48 text on white | 11.50:1 | AAA | Lc 95.7 | Preferred for body text |
| #661C48 text on black | 1.82:1 | 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
#FCF2F7
oklch(97% 0.013 345.5)
-
Step 100
100
#F8E3ED
oklch(93.6% 0.026 347.1)
-
Step 200
200
#F3CDDF
oklch(88.6% 0.049 347.9)
-
Step 300
300
#ECAACB
oklch(81% 0.088 347.8)
-
Step 400
400
#DF7AB0
oklch(70.7% 0.14 348)
-
Step 500
500
#D3539C
oklch(63.1% 0.179 348.1)
-
Step 600
600
#BE3187
oklch(55.6% 0.195 347.9)
-
Step 700
700
#A32272
oklch(49% 0.18 348)
-
Step 800
800
#851F5D
oklch(42.7% 0.15 348.1)
-
Step 900
900 (this color)
#661C48
oklch(36.1% 0.116 347.9)
-
Step 950
950
#3F152D
oklch(27.1% 0.073 347.7)
#661C48 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) | #263149 | 0.128 |
| Deuteranopia (no green cones) | #3B3E46 | 0.114 |
| Tritanopia (no blue cones) | #6D192F | 0.045 |
| Achromatopsia (no color) | #393939 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #661C48
#661C48
oklch(36.1% 0.116 347.9)
- #004936
#004936
oklch(36% 0.073 168.4)
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 #661C48, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.034
- Velvet #750851 ΔE 0.040
- Merlot #730039 ΔE 0.041
- Rich Purple #720058 ΔE 0.048
- Wine #80013F ΔE 0.058
- Red Purple #820747 ΔE 0.060
- Bordeaux #7B002C ΔE 0.063
- Burgundy #610023 ΔE 0.065
Use #661C48 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.