#B5166A
Closest named color: Violet Red (#A50055). oklch(51.2% 0.198 356.1), rgb(181, 22, 106).
Aa
White text reads best on this color (6.38:1).
About this color
#B5166A is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.198 and its hue 356°. Its hue sits on the warm side of the wheel. The nearest named color is Violet Red (#A50055), ΔE 0.047 away. White text reads best on it, at 6.38:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.198) |
| Temperature | warm |
| Nearest name | Violet Red (#A50055) |
| Black text | 3.28:1 |
| White text | 6.38:1 |
Values
| HEX | #B5166A |
| RGB | rgb(181, 22, 106) |
| HSL | hsl(328, 78%, 40%) |
| OKLCH | oklch(51.2% 0.198 356.1) |
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 #B5166A | 6.38:1 | AA | Lc -85.1 | Fine for body text |
| Black text on #B5166A | 3.28:1 | AA large text | Lc 24.2 | Dividers and decoration only |
| #B5166A text on white | 6.38:1 | AA | Lc 79.9 | Fine for body text |
| #B5166A text on black | 3.28:1 | AA large text | Lc -21.9 | 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
#FAE3EA
oklch(93.6% 0.027 357.2)
-
Step 200
200
#F7CBDA
oklch(88.4% 0.053 355.8)
-
Step 300
300
#F3A7C2
oklch(80.9% 0.095 356.5)
-
Step 400
400
#E974A4
oklch(70.7% 0.153 355.8)
-
Step 500
500
#DE488D
oklch(63% 0.195 356)
-
Step 600
600
#CA1D77
oklch(55.7% 0.213 356.2)
-
Step 700
700 (this color)
#B5166A
oklch(51.2% 0.198 356.1)
-
Step 800
800
#8D1052
oklch(42.7% 0.164 355.8)
-
Step 900
900
#721944
oklch(37.8% 0.129 355.9)
-
Step 950
950
#431128
oklch(27% 0.081 355.6)
#B5166A 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) | #3F4D6C | 0.225 |
| Deuteranopia (no green cones) | #6A6967 | 0.198 |
| Tritanopia (no blue cones) | #C40040 | 0.069 |
| Achromatopsia (no color) | #5F5F5F | 0.200 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B5166A
#B5166A
oklch(51.2% 0.198 356.1)
- #007864
#007864
oklch(51.2% 0.096 175.7)
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 #B5166A, closest first.
No curated palette has a color within ΔE 0.04 of #B5166A.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Violet Red #A50055 ΔE 0.047
- Raspberry #B00149 ΔE 0.050
- Deep Magenta #A0025C ΔE 0.052
- Medium Violet Red #C71585 ΔE 0.053
- Red Violet #9E0168 ΔE 0.055
- Dark Fuchsia #9D0759 ΔE 0.058
- Ruby #CA0147 ΔE 0.068
- Rose Red #BE013C ΔE 0.069
Use #B5166A 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.