#A51A66
Closest named color: Deep Magenta (#A0025C). oklch(48.4% 0.182 353.8), rgb(165, 26, 102).
Aa
White text reads best on this color (7.14:1).
About this color
#A51A66 is a medium-dark, vivid red. In OKLCH its lightness is 48%, its chroma 0.182 and its hue 354°. Its hue sits on the warm side of the wheel. The nearest named color is Deep Magenta (#A0025C), ΔE 0.024 away. White text reads best on it, at 7.14:1.
| Hue family | Reds |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.182) |
| Temperature | warm |
| Nearest name | Deep Magenta (#A0025C) |
| Black text | 2.93:1 |
| White text | 7.14:1 |
Values
| HEX | #A51A66 |
| RGB | rgb(165, 26, 102) |
| HSL | hsl(327, 73%, 37%) |
| OKLCH | oklch(48.4% 0.182 353.8) |
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 #A51A66 | 7.14:1 | AAA | Lc -88.2 | Fine for body text |
| Black text on #A51A66 | 2.93:1 | Fails | Lc 20.9 | Dividers and decoration only |
| #A51A66 text on white | 7.14:1 | AAA | Lc 83.2 | Fine for body text |
| #A51A66 text on black | 2.93:1 | Fails | Lc -18.8 | 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
#FCF2F6
oklch(97% 0.012 351)
-
Step 100
100
#F9E3EB
oklch(93.6% 0.026 353.5)
-
Step 200
200
#F5CCDB
oklch(88.5% 0.05 354.2)
-
Step 300
300
#EFA9C5
oklch(80.9% 0.089 353.6)
-
Step 400
400
#E378A7
oklch(70.6% 0.142 353.6)
-
Step 500
500
#D75191
oklch(63.1% 0.179 353.8)
-
Step 600
600
#C32D7C
oklch(55.7% 0.197 353.6)
-
Step 700
700 (this color)
#A51A66
oklch(48.4% 0.182 353.8)
-
Step 800
800
#881C55
oklch(42.7% 0.151 353.6)
-
Step 900
900
#6E1F46
oklch(37.7% 0.118 353.9)
-
Step 950
950
#411429
oklch(27.1% 0.074 354.2)
#A51A66 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) | #394868 | 0.207 |
| Deuteranopia (no green cones) | #606163 | 0.183 |
| Tritanopia (no blue cones) | #B2003F | 0.064 |
| Achromatopsia (no color) | #585858 | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A51A66
#A51A66
oklch(48.4% 0.182 353.8)
- #006F5A
#006F5A
oklch(48.3% 0.092 173.6)
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 #A51A66, closest first.
No curated palette has a color within ΔE 0.04 of #A51A66.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Magenta #A0025C ΔE 0.024
- Red Violet #9E0168 ΔE 0.028
- Violet Red #A50055 ΔE 0.028
- Dark Fuchsia #9D0759 ΔE 0.029
- Berry #990F4B ΔE 0.048
- Raspberry #B00149 ΔE 0.049
- Purple Red #990147 ΔE 0.055
- Mulberry #920A4E ΔE 0.056
Use #A51A66 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.