#A51B72
Closest named color: Red Violet (#9E0168). oklch(48.9% 0.187 348.2), rgb(165, 27, 114).
Aa
White text reads best on this color (7.00:1).
About this color
#A51B72 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.187 and its hue 348°. Its hue sits on the warm side of the wheel. The nearest named color is Red Violet (#9E0168), ΔE 0.028 away. White text reads best on it, at 7.00:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.187) |
| Temperature | warm |
| Nearest name | Red Violet (#9E0168) |
| Black text | 2.99:1 |
| White text | 7.00:1 |
Values
| HEX | #A51B72 |
| RGB | rgb(165, 27, 114) |
| HSL | hsl(322, 72%, 38%) |
| OKLCH | oklch(48.9% 0.187 348.2) |
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 #A51B72 | 7.00:1 | AAA | Lc -87.7 | Fine for body text |
| Black text on #A51B72 | 2.99:1 | Fails | Lc 21.4 | Dividers and decoration only |
| #A51B72 text on white | 7.00:1 | AAA | Lc 82.7 | Fine for body text |
| #A51B72 text on black | 2.99:1 | Fails | Lc -19.2 | 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
#FCF2F7
oklch(97% 0.013 345.5)
-
Step 100
100
#F8E3ED
oklch(93.6% 0.026 347.1)
-
Step 200
200
#F4CCDF
oklch(88.5% 0.051 347.9)
-
Step 300
300
#EDA9CB
oklch(80.9% 0.09 347.9)
-
Step 400
400
#E178B0
oklch(70.7% 0.145 348.2)
-
Step 500
500
#D5509C
oklch(63.1% 0.184 348.3)
-
Step 600
600
#C12C87
oklch(55.7% 0.202 348.4)
-
Step 700
700 (this color)
#A51B72
oklch(48.9% 0.187 348.2)
-
Step 800
800
#871B5D
oklch(42.7% 0.156 348.5)
-
Step 900
900
#6C1F4C
oklch(37.6% 0.12 348.4)
-
Step 950
950
#40132D
oklch(27% 0.078 347.8)
#A51B72 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) | #344A74 | 0.212 |
| Deuteranopia (no green cones) | #5D616F | 0.183 |
| Tritanopia (no blue cones) | #B11146 | 0.074 |
| Achromatopsia (no color) | #595959 | 0.189 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A51B72
#A51B72
oklch(48.9% 0.187 348.2)
- #007255
#007255
oklch(49% 0.1 167.6)
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 #A51B72, closest first.
No curated palette has a color within ΔE 0.04 of #A51B72.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Violet #9E0168 ΔE 0.028
- Deep Magenta #A0025C ΔE 0.037
- Dark Fuchsia #9D0759 ΔE 0.043
- Violet Red #A50055 ΔE 0.045
- Warm Purple #952E8F ΔE 0.058
- Berry #990F4B ΔE 0.065
- Raspberry #B00149 ΔE 0.067
- Mulberry #920A4E ΔE 0.069
Use #A51B72 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.