#B51A5F
Closest named color: Raspberry (#B00149). oklch(51% 0.191 1.2), rgb(181, 26, 95).
Aa
White text reads best on this color (6.40:1).
About this color
#B51A5F is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.191 and its hue 1°. Its hue sits on the warm side of the wheel. The nearest named color is Raspberry (#B00149), ΔE 0.034 away. White text reads best on it, at 6.40:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.191) |
| Temperature | warm |
| Nearest name | Raspberry (#B00149) |
| Black text | 3.27:1 |
| White text | 6.40:1 |
Values
| HEX | #B51A5F |
| RGB | rgb(181, 26, 95) |
| HSL | hsl(333, 75%, 41%) |
| OKLCH | oklch(51% 0.191 1.2) |
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 #B51A5F | 6.40:1 | AA | Lc -85.3 | Fine for body text |
| Black text on #B51A5F | 3.27:1 | AA large text | Lc 24.0 | Dividers and decoration only |
| #B51A5F text on white | 6.40:1 | AA | Lc 80.1 | Fine for body text |
| #B51A5F text on black | 3.27:1 | AA large text | Lc -21.8 | 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
#FDF2F5
oklch(97.1% 0.012 358.8)
-
Step 100
100
#FAE3E9
oklch(93.6% 0.026 359.9)
-
Step 200
200
#F8CCD7
oklch(88.6% 0.052 1.5)
-
Step 300
300
#F3A8BD
oklch(80.9% 0.092 1)
-
Step 400
400
#EA759B
oklch(70.7% 0.149 1.1)
-
Step 500
500
#DF4B82
oklch(63.1% 0.189 1.3)
-
Step 600
600
#CA226C
oklch(55.6% 0.206 1)
-
Step 700
700 (this color)
#B51A5F
oklch(51% 0.191 1.2)
-
Step 800
800
#8E1449
oklch(42.8% 0.159 1.6)
-
Step 900
900
#721B3D
oklch(37.7% 0.123 1.5)
-
Step 950
950
#431224
oklch(27% 0.078 1.1)
#B51A5F 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) | #444C60 | 0.217 |
| Deuteranopia (no green cones) | #6D695C | 0.193 |
| Tritanopia (no blue cones) | #C5003B | 0.059 |
| Achromatopsia (no color) | #5F5F5F | 0.193 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B51A5F
#B51A5F
oklch(51% 0.191 1.2)
- #007769
#007769
oklch(51% 0.092 180.9)
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 #B51A5F, closest first.
No curated palette has a color within ΔE 0.04 of #B51A5F.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Raspberry #B00149 ΔE 0.034
- Violet Red #A50055 ΔE 0.043
- Rose Red #BE013C ΔE 0.052
- Deep Magenta #A0025C ΔE 0.052
- Ruby #CA0147 ΔE 0.054
- Dark Fuchsia #9D0759 ΔE 0.057
- Rouge #AB1239 ΔE 0.058
- Light Burgundy #A8415B ΔE 0.059
Use #B51A5F 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.