#B90C00
Closest named color: Scarlet (#BE0119). oklch(49.7% 0.199 30), rgb(185, 12, 0).
Aa
White text reads best on this color (6.74:1).
About this color
#B90C00 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 0.017 away. White text reads best on it, at 6.74:1.
| Hue family | Reds |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.199) |
| Temperature | warm |
| Nearest name | Scarlet (#BE0119) |
| Black text | 3.11:1 |
| White text | 6.74:1 |
Values
| HEX | #B90C00 |
| RGB | rgb(185, 12, 0) |
| HSL | hsl(4, 100%, 36%) |
| OKLCH | oklch(49.7% 0.199 30) |
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 #B90C00 | 6.74:1 | AA | Lc -86.0 | Fine for body text |
| Black text on #B90C00 | 3.11:1 | AA large text | Lc 23.2 | Dividers and decoration only |
| #B90C00 text on white | 6.74:1 | AA | Lc 80.8 | Fine for body text |
| #B90C00 text on black | 3.11:1 | AA large text | Lc -21.0 | 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
#F9A99C
oklch(80.9% 0.097 29.5)
-
Step 400
400
#F17765
oklch(70.7% 0.154 30)
-
Step 500
500
#E84B39
oklch(63.1% 0.196 30)
-
Step 600
600
#D41E0E
oklch(55.6% 0.214 30)
-
Step 700
700 (this color)
#B90C00
oklch(49.7% 0.199 30)
-
Step 800
800
#941106
oklch(42.6% 0.165 30)
-
Step 900
900
#771B11
oklch(37.7% 0.128 30.2)
-
Step 950
950
#46120C
oklch(27% 0.081 29.8)
#B90C00 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) | #4F4400 | 0.216 |
| Deuteranopia (no green cones) | #766800 | 0.192 |
| Tritanopia (no blue cones) | #CD000F | 0.042 |
| Achromatopsia (no color) | #5B5B5B | 0.201 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B90C00
#B90C00
oklch(49.7% 0.199 30)
- #006F7D
#006F7D
oklch(49.6% 0.086 209.9)
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 #B90C00, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Scarlet #BE0119 ΔE 0.017
- Firebrick #B22222 ΔE 0.022
- Rufous #AE2012 ΔE 0.023
- Rust Red #AA2704 ΔE 0.033
- Rusty Red #AF2F0D ΔE 0.033
- Lipstick Red #C0022F ΔE 0.037
- Brown #A52A2A ΔE 0.045
- Rose Red #BE013C ΔE 0.051
Use #B90C00 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.