#B10B4E
Closest named color: Raspberry (#B00149). oklch(49.1% 0.192 6.9), rgb(177, 11, 78).
Aa
White text reads best on this color (6.93:1).
About this color
#B10B4E is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.192 and its hue 7°. Its hue sits on the warm side of the wheel. The nearest named color is Raspberry (#B00149), ΔE 0.008 away. White text reads best on it, at 6.93:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.192) |
| Temperature | warm |
| Nearest name | Raspberry (#B00149) |
| Black text | 3.02:1 |
| White text | 6.93:1 |
Values
| HEX | #B10B4E |
| RGB | rgb(177, 11, 78) |
| HSL | hsl(336, 88%, 37%) |
| OKLCH | oklch(49.1% 0.192 6.9) |
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 #B10B4E | 6.93:1 | AA | Lc -86.9 | Fine for body text |
| Black text on #B10B4E | 3.02:1 | AA large text | Lc 22.2 | Dividers and decoration only |
| #B10B4E text on white | 6.93:1 | AA | Lc 81.8 | Fine for body text |
| #B10B4E text on black | 3.02:1 | AA large text | Lc -20.1 | 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
#FEF2F4
oklch(97.1% 0.013 5.8)
-
Step 100
100
#FBE3E7
oklch(93.6% 0.027 6.2)
-
Step 200
200
#F9CCD3
oklch(88.6% 0.052 7.7)
-
Step 300
300
#F5A8B6
oklch(81% 0.092 7.4)
-
Step 400
400
#EC7591
oklch(70.7% 0.149 6.8)
-
Step 500
500
#E24A76
oklch(63.2% 0.19 6.9)
-
Step 600
600
#CD1F5E
oklch(55.5% 0.207 7.1)
-
Step 700
700 (this color)
#B10B4E
oklch(49.1% 0.192 6.9)
-
Step 800
800
#901240
oklch(42.8% 0.159 6.9)
-
Step 900
900
#741A36
oklch(37.7% 0.125 7.1)
-
Step 950
950
#441220
oklch(27% 0.078 6.9)
#B10B4E 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) | #42464F | 0.218 |
| Deuteranopia (no green cones) | #6B654A | 0.197 |
| Tritanopia (no blue cones) | #C2002E | 0.056 |
| Achromatopsia (no color) | #5A5A5A | 0.193 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B10B4E
#B10B4E
oklch(49.1% 0.192 6.9)
- #007069
#007069
oklch(49.1% 0.086 187.3)
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 #B10B4E, closest first.
No curated palette has a color within ΔE 0.04 of #B10B4E.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Raspberry #B00149 ΔE 0.008
- Violet Red #A50055 ΔE 0.032
- Rouge #AB1239 ΔE 0.033
- Rose Red #BE013C ΔE 0.038
- Deep Magenta #A0025C ΔE 0.048
- Cranberry #9E003A ΔE 0.049
- Dark Fuchsia #9D0759 ΔE 0.050
- Berry #990F4B ΔE 0.051
Use #B10B4E 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.