#B21374
Closest named color: Red Violet (#9E0168). oklch(50.9% 0.202 350.8), rgb(178, 19, 116).
Aa
White text reads best on this color (6.48:1).
About this color
#B21374 is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.202 and its hue 351°. Its hue sits on the warm side of the wheel. The nearest named color is Red Violet (#9E0168), ΔE 0.048 away. White text reads best on it, at 6.48:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.202) |
| Temperature | warm |
| Nearest name | Red Violet (#9E0168) |
| Black text | 3.23:1 |
| White text | 6.48:1 |
Values
| HEX | #B21374 |
| RGB | rgb(178, 19, 116) |
| HSL | hsl(323, 81%, 39%) |
| OKLCH | oklch(50.9% 0.202 350.8) |
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 #B21374 | 6.48:1 | AA | Lc -85.4 | Fine for body text |
| Black text on #B21374 | 3.23:1 | AA large text | Lc 23.8 | Dividers and decoration only |
| #B21374 text on white | 6.48:1 | AA | Lc 80.3 | Fine for body text |
| #B21374 text on black | 3.23:1 | AA large text | Lc -21.6 | 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
#FDF2F6
oklch(97.1% 0.013 353.1)
-
Step 100
100
#FAE3EC
oklch(93.7% 0.028 352)
-
Step 200
200
#F6CBDE
oklch(88.4% 0.054 349.9)
-
Step 300
300
#F2A7C9
oklch(81% 0.098 350.7)
-
Step 400
400
#E773AD
oklch(70.6% 0.157 350.6)
-
Step 500
500
#DC4798
oklch(63% 0.2 350.9)
-
Step 600
600
#C71C83
oklch(55.6% 0.217 350.7)
-
Step 700
700 (this color)
#B21374
oklch(50.9% 0.202 350.8)
-
Step 800
800
#8C0F5A
oklch(42.8% 0.168 351.1)
-
Step 900
900
#70194A
oklch(37.6% 0.13 350.7)
-
Step 950
950
#42112B
oklch(27% 0.082 351.2)
#B21374 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) | #384D76 | 0.229 |
| Deuteranopia (no green cones) | #656871 | 0.200 |
| Tritanopia (no blue cones) | #C00045 | 0.078 |
| Achromatopsia (no color) | #5E5E5E | 0.204 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B21374
#B21374
oklch(50.9% 0.202 350.8)
- #00785E
#00785E
oklch(51% 0.1 170.8)
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 #B21374, closest first.
No curated palette has a color within ΔE 0.04 of #B21374.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Red Violet #9E0168 ΔE 0.048
- Medium Violet Red #C71585 ΔE 0.049
- Deep Magenta #A0025C ΔE 0.053
- Violet Red #A50055 ΔE 0.054
- Dark Fuchsia #9D0759 ΔE 0.060
- Raspberry #B00149 ΔE 0.065
- Warm Purple #952E8F ΔE 0.073
- Berry #990F4B ΔE 0.080
Use #B21374 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.