#661C45
Closest named color: Grape Purple (#5D1451). oklch(36% 0.115 350.3), rgb(102, 28, 69).
Aa
White text reads best on this color (11.55:1).
About this color
#661C45 is a dark, moderately saturated red. In OKLCH its lightness is 36%, its chroma 0.115 and its hue 350°. Its hue sits on the warm side of the wheel. The nearest named color is Grape Purple (#5D1451), ΔE 0.038 away. White text reads best on it, at 11.55:1.
| Hue family | Reds |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.115) |
| Temperature | warm |
| Nearest name | Grape Purple (#5D1451) |
| Black text | 1.81:1 |
| White text | 11.55:1 |
Values
| HEX | #661C45 |
| RGB | rgb(102, 28, 69) |
| HSL | hsl(327, 57%, 25%) |
| OKLCH | oklch(36% 0.115 350.3) |
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 #661C45 | 11.55:1 | AAA | Lc -99.6 | Preferred for body text |
| Black text on #661C45 | 1.81:1 | Fails | Lc 8.1 | Not readable |
| #661C45 text on white | 11.55:1 | AAA | Lc 95.8 | Preferred for body text |
| #661C45 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
#F8E3EC
oklch(93.5% 0.026 349.8)
-
Step 200
200
#F3CDDD
oklch(88.5% 0.047 350.9)
-
Step 300
300
#ECAAC8
oklch(80.9% 0.086 350.3)
-
Step 400
400
#DF7AAC
oklch(70.6% 0.137 350.2)
-
Step 500
500
#D35498
oklch(63.1% 0.175 350)
-
Step 600
600
#BF3282
oklch(55.6% 0.192 350.4)
-
Step 700
700
#A4236E
oklch(49.1% 0.178 350.3)
-
Step 800
800
#85205A
oklch(42.7% 0.147 350)
-
Step 900
900 (this color)
#661C45
oklch(36% 0.115 350.3)
-
Step 950
950
#3F152B
oklch(27% 0.072 350.4)
#661C45 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) | #273146 | 0.127 |
| Deuteranopia (no green cones) | #3C3E43 | 0.114 |
| Tritanopia (no blue cones) | #6E182D | 0.044 |
| Achromatopsia (no color) | #393939 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #661C45
#661C45
oklch(36% 0.115 350.3)
- #004937
#004937
oklch(36% 0.072 169.5)
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 #661C45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grape Purple #5D1451 ΔE 0.038
- Merlot #730039 ΔE 0.039
- Velvet #750851 ΔE 0.043
- Rich Purple #720058 ΔE 0.052
- Wine #80013F ΔE 0.057
- Bordeaux #7B002C ΔE 0.060
- Red Purple #820747 ΔE 0.060
- Burgundy #610023 ΔE 0.061
Use #661C45 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.