#A21C73
Closest named color: Red Violet (#9E0168). oklch(48.5% 0.185 346.9), rgb(162, 28, 115).
Aa
White text reads best on this color (7.11:1).
About this color
#A21C73 is a medium-dark, vivid red. In OKLCH its lightness is 48%, its chroma 0.185 and its hue 347°. Its hue sits on the warm side of the wheel. The nearest named color is Red Violet (#9E0168), ΔE 0.026 away. White text reads best on it, at 7.11:1.
| Hue family | Reds |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.185) |
| Temperature | warm |
| Nearest name | Red Violet (#9E0168) |
| Black text | 2.94:1 |
| White text | 7.11:1 |
Values
| HEX | #A21C73 |
| RGB | rgb(162, 28, 115) |
| HSL | hsl(321, 71%, 37%) |
| OKLCH | oklch(48.5% 0.185 346.9) |
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 #A21C73 | 7.11:1 | AAA | Lc -88.2 | Fine for body text |
| Black text on #A21C73 | 2.94:1 | Fails | Lc 20.9 | Dividers and decoration only |
| #A21C73 text on white | 7.11:1 | AAA | Lc 83.2 | Fine for body text |
| #A21C73 text on black | 2.94:1 | 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
#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
#E079B2
oklch(70.8% 0.144 347)
-
Step 500
500
#D4519F
oklch(63.1% 0.184 346.9)
-
Step 600
600
#BF2E8A
oklch(55.6% 0.2 346.8)
-
Step 700
700 (this color)
#A21C73
oklch(48.5% 0.185 346.9)
-
Step 800
800
#851D5F
oklch(42.6% 0.153 346.8)
-
Step 900
900
#6B204E
oklch(37.7% 0.119 346.5)
-
Step 950
950
#3F142E
oklch(27% 0.076 346.1)
#A21C73 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) | #324975 | 0.209 |
| Deuteranopia (no green cones) | #5B6070 | 0.180 |
| Tritanopia (no blue cones) | #AE1646 | 0.076 |
| Achromatopsia (no color) | #585858 | 0.187 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A21C73
#A21C73
oklch(48.5% 0.185 346.9)
- #007053
#007053
oklch(48.4% 0.099 167.3)
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 #A21C73, closest first.
No curated palette has a color within ΔE 0.04 of #A21C73.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Violet #9E0168 ΔE 0.026
- Deep Magenta #A0025C ΔE 0.038
- Dark Fuchsia #9D0759 ΔE 0.043
- Violet Red #A50055 ΔE 0.048
- Warm Purple #952E8F ΔE 0.053
- Berry #990F4B ΔE 0.065
- Mulberry #920A4E ΔE 0.067
- Purple Red #990147 ΔE 0.071
Use #A21C73 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.