#BB1101
Closest named color: Scarlet (#BE0119). oklch(50.2% 0.199 30.3), rgb(187, 17, 1).
Aa
White text reads best on this color (6.57:1).
About this color
#BB1101 is a medium-dark, vivid red. In OKLCH its lightness is 50%, its chroma 0.199 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Scarlet (#BE0119), ΔE 0.016 away. White text reads best on it, at 6.57:1.
| Hue family | Reds |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.199) |
| Temperature | warm |
| Nearest name | Scarlet (#BE0119) |
| Black text | 3.19:1 |
| White text | 6.57:1 |
Values
| HEX | #BB1101 |
| RGB | rgb(187, 17, 1) |
| HSL | hsl(5, 99%, 37%) |
| OKLCH | oklch(50.2% 0.199 30.3) |
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 #BB1101 | 6.57:1 | AA | Lc -85.4 | Fine for body text |
| Black text on #BB1101 | 3.19:1 | AA large text | Lc 23.8 | Dividers and decoration only |
| #BB1101 text on white | 6.57:1 | AA | Lc 80.3 | Fine for body text |
| #BB1101 text on black | 3.19:1 | AA large text | Lc -21.6 | 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
#FEF2F0
oklch(97% 0.013 28.9)
-
Step 100
100
#FCE3DF
oklch(93.5% 0.028 28.5)
-
Step 200
200
#FBCDC4
oklch(88.6% 0.054 31)
-
Step 300
300
#F9A99B
oklch(80.9% 0.097 30.3)
-
Step 400
400
#F17764
oklch(70.7% 0.154 30.5)
-
Step 500
500
#E84B38
oklch(63.1% 0.197 30.3)
-
Step 600
600
#D41E0C
oklch(55.6% 0.215 30.2)
-
Step 700
700 (this color)
#BB1101
oklch(50.2% 0.199 30.3)
-
Step 800
800
#941105
oklch(42.6% 0.165 30.2)
-
Step 900
900
#771B10
oklch(37.7% 0.128 30.6)
-
Step 950
950
#46120B
oklch(26.9% 0.081 30.7)
#BB1101 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) | #514600 | 0.216 |
| Deuteranopia (no green cones) | #786A00 | 0.192 |
| Tritanopia (no blue cones) | #CF0013 | 0.042 |
| Achromatopsia (no color) | #5D5D5D | 0.201 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB1101
#BB1101
oklch(50.2% 0.199 30.3)
- #00717F
#00717F
oklch(50.3% 0.087 209.7)
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 #BB1101, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Scarlet #BE0119 ΔE 0.016
- Firebrick #B22222 ΔE 0.023
- Rufous #AE2012 ΔE 0.026
- Rusty Red #AF2F0D ΔE 0.033
- Rust Red #AA2704 ΔE 0.035
- Lipstick Red #C0022F ΔE 0.036
- Brown #A52A2A ΔE 0.048
- Rose Red #BE013C ΔE 0.051
Use #BB1101 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.