#B1005B
Closest named color: Violet Red (#A50055). oklch(49.2% 0.199 0.6), rgb(177, 0, 91).
Aa
White text reads best on this color (6.95:1).
About this color
#B1005B is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.199 and its hue 1°. Its hue sits on the warm side of the wheel. The nearest named color is Violet Red (#A50055), ΔE 0.027 away. White text reads best on it, at 6.95:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.199) |
| Temperature | warm |
| Nearest name | Violet Red (#A50055) |
| Black text | 3.02:1 |
| White text | 6.95:1 |
Values
| HEX | #B1005B |
| RGB | rgb(177, 0, 91) |
| HSL | hsl(329, 100%, 35%) |
| OKLCH | oklch(49.2% 0.199 0.6) |
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 #B1005B | 6.95:1 | AA | Lc -86.7 | Fine for body text |
| Black text on #B1005B | 3.02:1 | AA large text | Lc 22.5 | Dividers and decoration only |
| #B1005B text on white | 6.95:1 | AA | Lc 81.6 | Fine for body text |
| #B1005B text on black | 3.02:1 | AA large text | Lc -20.3 | 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
#FEF2F5
oklch(97.1% 0.013 0.3)
-
Step 100
100
#FBE3E9
oklch(93.7% 0.027 0.7)
-
Step 200
200
#F9CBD7
oklch(88.5% 0.054 0.8)
-
Step 300
300
#F5A7BD
oklch(81% 0.096 1)
-
Step 400
400
#EC739B
oklch(70.7% 0.154 0.9)
-
Step 500
500
#E24683
oklch(63.1% 0.198 0.7)
-
Step 600
600
#CD186D
oklch(55.6% 0.214 0.5)
-
Step 700
700 (this color)
#B1005B
oklch(49.2% 0.199 0.6)
-
Step 800
800
#8F0D4A
oklch(42.6% 0.164 0.6)
-
Step 900
900
#73183E
oklch(37.6% 0.128 0.4)
-
Step 950
950
#441024
oklch(26.9% 0.082 0.7)
#B1005B 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) | #3C465D | 0.228 |
| Deuteranopia (no green cones) | #686457 | 0.201 |
| Tritanopia (no blue cones) | #C10034 | 0.068 |
| Achromatopsia (no color) | #595959 | 0.201 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B1005B
#B1005B
oklch(49.2% 0.199 0.6)
- #007163
#007163
oklch(49.2% 0.089 180.3)
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 #B1005B, closest first.
No curated palette has a color within ΔE 0.04 of #B1005B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Violet Red #A50055 ΔE 0.027
- Raspberry #B00149 ΔE 0.028
- Deep Magenta #A0025C ΔE 0.037
- Dark Fuchsia #9D0759 ΔE 0.042
- Red Violet #9E0168 ΔE 0.049
- Berry #990F4B ΔE 0.054
- Rouge #AB1239 ΔE 0.055
- Rose Red #BE013C ΔE 0.056
Use #B1005B 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.