#B9121F
Closest named color: Scarlet (#BE0119). oklch(50.1% 0.195 25.6), rgb(185, 18, 31).
Aa
White text reads best on this color (6.62:1).
About this color
#B9121F is a medium-dark, vivid red. In OKLCH its lightness is 50%, its chroma 0.195 and its hue 26°. Its hue sits on the warm side of the wheel. The nearest named color is Scarlet (#BE0119), ΔE 0.011 away. White text reads best on it, at 6.62:1.
| Hue family | Reds |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.195) |
| Temperature | warm |
| Nearest name | Scarlet (#BE0119) |
| Black text | 3.16:1 |
| White text | 6.62:1 |
Values
| HEX | #B9121F |
| RGB | rgb(185, 18, 31) |
| HSL | hsl(355, 82%, 40%) |
| OKLCH | oklch(50.1% 0.195 25.6) |
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 #B9121F | 6.62:1 | AA | Lc -85.8 | Fine for body text |
| Black text on #B9121F | 3.16:1 | AA large text | Lc 23.5 | Dividers and decoration only |
| #B9121F text on white | 6.62:1 | AA | Lc 80.6 | Fine for body text |
| #B9121F text on black | 3.16:1 | AA large text | Lc -21.3 | 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
#FEF2F1
oklch(97% 0.013 23.2)
-
Step 100
100
#FCE3E1
oklch(93.6% 0.028 23.2)
-
Step 200
200
#FACDC7
oklch(88.6% 0.052 27)
-
Step 300
300
#F8A9A1
oklch(80.9% 0.095 25.8)
-
Step 400
400
#F0776E
oklch(70.7% 0.151 25.9)
-
Step 500
500
#E74B48
oklch(63.1% 0.193 25.5)
-
Step 600
600
#D22029
oklch(55.6% 0.209 25.7)
-
Step 700
700 (this color)
#B9121F
oklch(50.1% 0.195 25.6)
-
Step 800
800
#931219
oklch(42.6% 0.161 25.7)
-
Step 900
900
#761B1B
oklch(37.6% 0.125 25.6)
-
Step 950
950
#461211
oklch(27% 0.08 25.2)
#B9121F 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) | #4F461D | 0.214 |
| Deuteranopia (no green cones) | #766916 | 0.194 |
| Tritanopia (no blue cones) | #CC001B | 0.038 |
| Achromatopsia (no color) | #5D5D5D | 0.196 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B9121F
#B9121F
oklch(50.1% 0.195 25.6)
- #00717B
#00717B
oklch(50.1% 0.086 205.5)
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 #B9121F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Scarlet #BE0119 ΔE 0.011
- Firebrick #B22222 ΔE 0.016
- Lipstick Red #C0022F ΔE 0.023
- Rufous #AE2012 ΔE 0.026
- Rose Red #BE013C ΔE 0.036
- Rusty Red #AF2F0D ΔE 0.038
- Rust Red #AA2704 ΔE 0.039
- Brown #A52A2A ΔE 0.041
Use #B9121F 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.