#B4105E
Closest named color: Raspberry (#B00149). oklch(50.3% 0.196 0.7), rgb(180, 16, 94).
Aa
White text reads best on this color (6.61:1).
About this color
#B4105E is a medium-dark, vivid red. In OKLCH its lightness is 50%, its chroma 0.196 and its hue 1°. Its hue sits on the warm side of the wheel. The nearest named color is Raspberry (#B00149), ΔE 0.032 away. White text reads best on it, at 6.61:1.
| Hue family | Reds |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.196) |
| Temperature | warm |
| Nearest name | Raspberry (#B00149) |
| Black text | 3.17:1 |
| White text | 6.61:1 |
Values
| HEX | #B4105E |
| RGB | rgb(180, 16, 94) |
| HSL | hsl(331, 84%, 38%) |
| OKLCH | oklch(50.3% 0.196 0.7) |
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 #B4105E | 6.61:1 | AA | Lc -85.8 | Fine for body text |
| Black text on #B4105E | 3.17:1 | AA large text | Lc 23.4 | Dividers and decoration only |
| #B4105E text on white | 6.61:1 | AA | Lc 80.7 | Fine for body text |
| #B4105E text on black | 3.17:1 | AA large text | Lc -21.2 | 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
#FBE3E9
oklch(93.7% 0.027 0.7)
-
Step 200
200
#F8CBD7
oklch(88.4% 0.053 0.4)
-
Step 300
300
#F4A7BD
oklch(80.9% 0.094 0.8)
-
Step 400
400
#EB749B
oklch(70.7% 0.152 1)
-
Step 500
500
#E14883
oklch(63.2% 0.194 0.8)
-
Step 600
600
#CC1C6D
oklch(55.6% 0.211 0.6)
-
Step 700
700 (this color)
#B4105E
oklch(50.3% 0.196 0.7)
-
Step 800
800
#8F104A
oklch(42.8% 0.163 0.9)
-
Step 900
900
#73193E
oklch(37.7% 0.127 0.7)
-
Step 950
950
#441124
oklch(27% 0.08 1.2)
#B4105E 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) | #404960 | 0.224 |
| Deuteranopia (no green cones) | #6B675A | 0.198 |
| Tritanopia (no blue cones) | #C40038 | 0.064 |
| Achromatopsia (no color) | #5D5D5D | 0.198 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B4105E
#B4105E
oklch(50.3% 0.196 0.7)
- #007567
#007567
oklch(50.4% 0.091 180.7)
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 #B4105E, closest first.
No curated palette has a color within ΔE 0.04 of #B4105E.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Raspberry #B00149 ΔE 0.032
- Violet Red #A50055 ΔE 0.037
- Deep Magenta #A0025C ΔE 0.046
- Dark Fuchsia #9D0759 ΔE 0.051
- Rose Red #BE013C ΔE 0.054
- Red Violet #9E0168 ΔE 0.056
- Rouge #AB1239 ΔE 0.057
- Ruby #CA0147 ΔE 0.058
Use #B4105E 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.