#A21C6B
Closest named color: Red Violet (#9E0168). oklch(48.2% 0.181 350.6), rgb(162, 28, 107).
Aa
White text reads best on this color (7.20:1).
About this color
#A21C6B is a medium-dark, vivid red. In OKLCH its lightness is 48%, its chroma 0.181 and its hue 351°. Its hue sits on the warm side of the wheel. The nearest named color is Red Violet (#9E0168), ΔE 0.023 away. White text reads best on it, at 7.20:1.
| Hue family | Reds |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.181) |
| Temperature | warm |
| Nearest name | Red Violet (#9E0168) |
| Black text | 2.91:1 |
| White text | 7.20:1 |
Values
| HEX | #A21C6B |
| RGB | rgb(162, 28, 107) |
| HSL | hsl(325, 71%, 37%) |
| OKLCH | oklch(48.2% 0.181 350.6) |
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 #A21C6B | 7.20:1 | AAA | Lc -88.5 | Fine for body text |
| Black text on #A21C6B | 2.91:1 | Fails | Lc 20.5 | Dividers and decoration only |
| #A21C6B text on white | 7.20:1 | AAA | Lc 83.5 | Fine for body text |
| #A21C6B text on black | 2.91:1 | Fails | Lc -18.5 | 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
#F8E3EC
oklch(93.5% 0.026 349.8)
-
Step 200
200
#F4CDDD
oklch(88.6% 0.048 351.5)
-
Step 300
300
#EDAAC8
oklch(81% 0.087 350.7)
-
Step 400
400
#E179AC
oklch(70.7% 0.141 350.6)
-
Step 500
500
#D55297
oklch(63.1% 0.179 350.8)
-
Step 600
600
#C03082
oklch(55.6% 0.194 350.5)
-
Step 700
700 (this color)
#A21C6B
oklch(48.2% 0.181 350.6)
-
Step 800
800
#861E59
oklch(42.6% 0.15 350.7)
-
Step 900
900
#6C2049
oklch(37.6% 0.117 350.9)
-
Step 950
950
#40142B
oklch(27% 0.075 350.8)
#A21C6B 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) | #36486D | 0.205 |
| Deuteranopia (no green cones) | #5D6068 | 0.180 |
| Tritanopia (no blue cones) | #AF0D42 | 0.069 |
| Achromatopsia (no color) | #575757 | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A21C6B
#A21C6B
oklch(48.2% 0.181 350.6)
- #006F56
#006F56
oklch(48.2% 0.095 170.2)
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 #A21C6B, closest first.
No curated palette has a color within ΔE 0.04 of #A21C6B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Violet #9E0168 ΔE 0.023
- Deep Magenta #A0025C ΔE 0.027
- Dark Fuchsia #9D0759 ΔE 0.032
- Violet Red #A50055 ΔE 0.035
- Berry #990F4B ΔE 0.053
- Mulberry #920A4E ΔE 0.057
- Purple Red #990147 ΔE 0.059
- Raspberry #B00149 ΔE 0.059
Use #A21C6B 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.