#A21C72
Closest named color: Red Violet (#9E0168). oklch(48.4% 0.185 347.3), rgb(162, 28, 114).
Aa
White text reads best on this color (7.12:1).
About this color
#A21C72 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 0.025 away. White text reads best on it, at 7.12:1.
| 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 | 7.12:1 |
Values
| HEX | #A21C72 |
| RGB | rgb(162, 28, 114) |
| HSL | hsl(321, 71%, 37%) |
| OKLCH | oklch(48.4% 0.185 347.3) |
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 #A21C72 | 7.12:1 | AAA | Lc -88.2 | Fine for body text |
| Black text on #A21C72 | 2.94:1 | Fails | Lc 20.8 | Dividers and decoration only |
| #A21C72 text on white | 7.12:1 | AAA | Lc 83.2 | Fine for body text |
| #A21C72 text on black | 2.94:1 | 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
#F3CCDF
oklch(88.4% 0.05 347.3)
-
Step 300
300
#ECA9CB
oklch(80.8% 0.09 347.4)
-
Step 400
400
#E079B1
oklch(70.8% 0.143 347.6)
-
Step 500
500
#D4519E
oklch(63.1% 0.183 347.3)
-
Step 600
600
#BF2F89
oklch(55.7% 0.198 347.3)
-
Step 700
700 (this color)
#A21C72
oklch(48.4% 0.185 347.3)
-
Step 800
800
#851D5E
oklch(42.6% 0.153 347.3)
-
Step 900
900
#6C204D
oklch(37.8% 0.119 347.8)
-
Step 950
950
#3F142D
oklch(26.9% 0.075 347.3)
#A21C72 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) | #334974 | 0.208 |
| Deuteranopia (no green cones) | #5B606F | 0.181 |
| Tritanopia (no blue cones) | #AE1546 | 0.075 |
| Achromatopsia (no color) | #585858 | 0.186 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A21C72
#A21C72
oklch(48.4% 0.185 347.3)
- #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 #A21C72, closest first.
No curated palette has a color within ΔE 0.04 of #A21C72.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Violet #9E0168 ΔE 0.025
- Deep Magenta #A0025C ΔE 0.036
- Dark Fuchsia #9D0759 ΔE 0.041
- Violet Red #A50055 ΔE 0.046
- Warm Purple #952E8F ΔE 0.055
- Berry #990F4B ΔE 0.063
- Mulberry #920A4E ΔE 0.066
- Purple Red #990147 ΔE 0.069
Use #A21C72 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.