#903F66
Closest named color: Dark Mauve (#874C62). oklch(48.6% 0.118 352.3), rgb(144, 63, 102).
Aa
White text reads best on this color (6.79:1).
About this color
#903F66 is a medium-dark, moderately saturated red. In OKLCH its lightness is 49%, its chroma 0.118 and its hue 352°. Its hue sits on the warm side of the wheel. The nearest named color is Dark Mauve (#874C62), ΔE 0.036 away. White text reads best on it, at 6.79:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.118) |
| Temperature | warm |
| Nearest name | Dark Mauve (#874C62) |
| Black text | 3.08:1 |
| White text | 6.79:1 |
Values
| HEX | #903F66 |
| RGB | rgb(144, 63, 102) |
| HSL | hsl(331, 39%, 41%) |
| OKLCH | oklch(48.6% 0.118 352.3) |
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 #903F66 | 6.79:1 | AA | Lc -88.0 | Fine for body text |
| Black text on #903F66 | 3.08:1 | AA large text | Lc 21.1 | Dividers and decoration only |
| #903F66 text on white | 6.79:1 | AA | Lc 83.0 | Fine for body text |
| #903F66 text on black | 3.08:1 | AA large text | Lc -19.0 | Dividers and decoration only |
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 700.
-
Step 50
50
#FAF3F6
oklch(97% 0.008 349.2)
-
Step 100
100
#F3E6EB
oklch(93.7% 0.016 352)
-
Step 200
200
#EBD1DB
oklch(88.5% 0.032 352.5)
-
Step 300
300
#DFB2C4
oklch(80.9% 0.057 352.5)
-
Step 400
400
#CD89A6
oklch(70.7% 0.091 352.5)
-
Step 500
500
#BF6A90
oklch(63.1% 0.117 352.7)
-
Step 600
600
#AA507B
oklch(55.6% 0.128 352.1)
-
Step 700
700 (this color)
#903F66
oklch(48.6% 0.118 352.3)
-
Step 800
800
#763654
oklch(42.7% 0.097 352.6)
-
Step 900
900
#602F46
oklch(37.8% 0.077 351.9)
-
Step 950
950
#381C29
oklch(27% 0.048 351.5)
#903F66 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) | #4A5267 | 0.129 |
| Deuteranopia (no green cones) | #5F6064 | 0.117 |
| Tritanopia (no blue cones) | #9A3B4E | 0.041 |
| Achromatopsia (no color) | #5B5B5B | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #903F66
#903F66
oklch(48.6% 0.118 352.3)
- #00705A
#00705A
oklch(48.6% 0.093 172.9)
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 #903F66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Mauve #874C62 ΔE 0.036
- Light Eggplant #894585 ΔE 0.050
- Light Burgundy #A8415B ΔE 0.053
- Light Maroon #A24857 ΔE 0.054
- Brownish Purple #76424E ΔE 0.065
- Dull Purple #84597E ΔE 0.065
- Dusky Purple #895B7B ΔE 0.067
- Light Plum #9D5783 ΔE 0.069
Use #903F66 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.