#A21A73
Closest named color: Red Violet (#9E0168). oklch(48.4% 0.187 346.8), rgb(162, 26, 115).
Aa
White text reads best on this color (7.16:1).
About this color
#A21A73 is a medium-dark, vivid red. In OKLCH its lightness is 48%, its chroma 0.187 and its hue 347°. Its hue sits on the warm side of the wheel. The nearest named color is Red Violet (#9E0168), ΔE 0.024 away. White text reads best on it, at 7.16:1.
| Hue family | Reds |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.187) |
| Temperature | warm |
| Nearest name | Red Violet (#9E0168) |
| Black text | 2.93:1 |
| White text | 7.16:1 |
Values
| HEX | #A21A73 |
| RGB | rgb(162, 26, 115) |
| HSL | hsl(321, 72%, 37%) |
| OKLCH | oklch(48.4% 0.187 346.8) |
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 #A21A73 | 7.16:1 | AAA | Lc -88.3 | Fine for body text |
| Black text on #A21A73 | 2.93:1 | Fails | Lc 20.8 | Dividers and decoration only |
| #A21A73 text on white | 7.16:1 | AAA | Lc 83.3 | Fine for body text |
| #A21A73 text on black | 2.93:1 | Fails | Lc -18.7 | 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
#F3CCE0
oklch(88.4% 0.051 345.9)
-
Step 300
300
#ECA9CC
oklch(80.8% 0.09 346.7)
-
Step 400
400
#E078B2
oklch(70.6% 0.145 346.9)
-
Step 500
500
#D4509F
oklch(63% 0.185 346.8)
-
Step 600
600
#BF2D8A
oklch(55.6% 0.201 346.7)
-
Step 700
700 (this color)
#A21A73
oklch(48.4% 0.187 346.8)
-
Step 800
800
#861C5F
oklch(42.7% 0.155 347.1)
-
Step 900
900
#6C1F4E
oklch(37.7% 0.121 346.9)
-
Step 950
950
#3F142E
oklch(27% 0.076 346.1)
#A21A73 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) | #314975 | 0.211 |
| Deuteranopia (no green cones) | #5A6070 | 0.183 |
| Tritanopia (no blue cones) | #AE1346 | 0.076 |
| Achromatopsia (no color) | #585858 | 0.188 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A21A73
#A21A73
oklch(48.4% 0.187 346.8)
- #007052
#007052
oklch(48.4% 0.1 166.5)
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 #A21A73, closest first.
No curated palette has a color within ΔE 0.04 of #A21A73.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Violet #9E0168 ΔE 0.024
- Deep Magenta #A0025C ΔE 0.037
- Dark Fuchsia #9D0759 ΔE 0.042
- Violet Red #A50055 ΔE 0.047
- Warm Purple #952E8F ΔE 0.054
- Berry #990F4B ΔE 0.065
- Mulberry #920A4E ΔE 0.067
- Purple Red #990147 ΔE 0.071
Use #A21A73 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.