#B91839
Closest named color: Rose Red (#BE013C). oklch(50.7% 0.191 18.1), rgb(185, 24, 57).
Aa
White text reads best on this color (6.45:1).
About this color
#B91839 is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.191 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Rose Red (#BE013C), ΔE 0.015 away. White text reads best on it, at 6.45:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.191) |
| Temperature | warm |
| Nearest name | Rose Red (#BE013C) |
| Black text | 3.25:1 |
| White text | 6.45:1 |
Values
| HEX | #B91839 |
| RGB | rgb(185, 24, 57) |
| HSL | hsl(348, 77%, 41%) |
| OKLCH | oklch(50.7% 0.191 18.1) |
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 #B91839 | 6.45:1 | AA | Lc -85.3 | Fine for body text |
| Black text on #B91839 | 3.25:1 | AA large text | Lc 23.9 | Dividers and decoration only |
| #B91839 text on white | 6.45:1 | AA | Lc 80.1 | Fine for body text |
| #B91839 text on black | 3.25:1 | AA large text | Lc -21.7 | 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FBE3E3
oklch(93.5% 0.026 17.6)
-
Step 200
200
#F9CCCC
oklch(88.4% 0.051 18.2)
-
Step 300
300
#F6A9AA
oklch(80.9% 0.091 18.4)
-
Step 400
400
#EE767D
oklch(70.6% 0.148 18)
-
Step 500
500
#E54B5C
oklch(63.1% 0.189 18.2)
-
Step 600
600
#D02243
oklch(55.7% 0.205 18.1)
-
Step 700
700 (this color)
#B91839
oklch(50.7% 0.191 18.1)
-
Step 800
800
#92142C
oklch(42.8% 0.158 18.1)
-
Step 900
900
#751B28
oklch(37.7% 0.123 17.6)
-
Step 950
950
#451217
oklch(27% 0.078 18.5)
#B91839 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) | #4D4939 | 0.213 |
| Deuteranopia (no green cones) | #756A34 | 0.193 |
| Tritanopia (no blue cones) | #CC0028 | 0.041 |
| Achromatopsia (no color) | #5E5E5E | 0.192 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B91839
#B91839
oklch(50.7% 0.191 18.1)
- #007477
#007477
oklch(50.7% 0.086 197.9)
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 #B91839, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rose Red #BE013C ΔE 0.015
- Lipstick Red #C0022F ΔE 0.017
- Scarlet #BE0119 ΔE 0.031
- Rouge #AB1239 ΔE 0.032
- Firebrick #B22222 ΔE 0.032
- Ruby #CA0147 ΔE 0.039
- Raspberry #B00149 ΔE 0.039
- Cherry #CF0234 ΔE 0.044
Use #B91839 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.