#BB0E21
Closest named color: Scarlet (#BE0119). oklch(50.3% 0.198 24.9), rgb(187, 14, 33).
Aa
White text reads best on this color (6.56:1).
About this color
#BB0E21 is a medium-dark, vivid red. In OKLCH its lightness is 50%, its chroma 0.198 and its hue 25°. Its hue sits on the warm side of the wheel. The nearest named color is Scarlet (#BE0119), ΔE 0.008 away. White text reads best on it, at 6.56:1.
| Hue family | Reds |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.198) |
| Temperature | warm |
| Nearest name | Scarlet (#BE0119) |
| Black text | 3.19:1 |
| White text | 6.56:1 |
Values
| HEX | #BB0E21 |
| RGB | rgb(187, 14, 33) |
| HSL | hsl(353, 86%, 39%) |
| OKLCH | oklch(50.3% 0.198 24.9) |
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 #BB0E21 | 6.56:1 | AA | Lc -85.4 | Fine for body text |
| Black text on #BB0E21 | 3.19:1 | AA large text | Lc 23.8 | Dividers and decoration only |
| #BB0E21 text on white | 6.56:1 | AA | Lc 80.2 | Fine for body text |
| #BB0E21 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
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FCE3E1
oklch(93.6% 0.028 23.2)
-
Step 200
200
#FBCCC8
oklch(88.5% 0.054 23.9)
-
Step 300
300
#F9A8A2
oklch(80.9% 0.097 24.1)
-
Step 400
400
#F1766F
oklch(70.8% 0.153 25)
-
Step 500
500
#E84949
oklch(63.1% 0.196 24.7)
-
Step 600
600
#D31B2A
oklch(55.5% 0.213 24.9)
-
Step 700
700 (this color)
#BB0E21
oklch(50.3% 0.198 24.9)
-
Step 800
800
#940F1A
oklch(42.6% 0.164 24.9)
-
Step 900
900
#771A1C
oklch(37.7% 0.127 24.8)
-
Step 950
950
#461111
oklch(26.9% 0.081 24.4)
#BB0E21 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) | #4E461F | 0.219 |
| Deuteranopia (no green cones) | #776A18 | 0.198 |
| Tritanopia (no blue cones) | #CF0019 | 0.041 |
| Achromatopsia (no color) | #5D5D5D | 0.200 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #BB0E21
#BB0E21
oklch(50.3% 0.198 24.9)
- #00727B
#00727B
oklch(50.3% 0.086 204.4)
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 #BB0E21, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Scarlet #BE0119 ΔE 0.008
- Lipstick Red #C0022F ΔE 0.018
- Firebrick #B22222 ΔE 0.020
- Rufous #AE2012 ΔE 0.031
- Rose Red #BE013C ΔE 0.032
- Rusty Red #AF2F0D ΔE 0.042
- Rouge #AB1239 ΔE 0.043
- Rust Red #AA2704 ΔE 0.044
Use #BB0E21 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.