#B91F3A
Closest named color: Rose Red (#BE013C). oklch(51.1% 0.186 18.6), rgb(185, 31, 58).
Aa
White text reads best on this color (6.32:1).
About this color
#B91F3A is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.186 and its hue 19°. Its hue sits on the warm side of the wheel. The nearest named color is Rose Red (#BE013C), ΔE 0.019 away. White text reads best on it, at 6.32:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.186) |
| Temperature | warm |
| Nearest name | Rose Red (#BE013C) |
| Black text | 3.31:1 |
| White text | 6.32:1 |
Values
| HEX | #B91F3A |
| RGB | rgb(185, 31, 58) |
| HSL | hsl(349, 71%, 42%) |
| OKLCH | oklch(51.1% 0.186 18.6) |
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 #B91F3A | 6.32:1 | AA | Lc -84.9 | Fine for body text |
| Black text on #B91F3A | 3.31:1 | AA large text | Lc 24.3 | Dividers and decoration only |
| #B91F3A text on white | 6.32:1 | AA | Lc 79.7 | Fine for body text |
| #B91F3A text on black | 3.31:1 | AA large text | Lc -22.1 | 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
#F9CDCC
oklch(88.6% 0.05 19.7)
-
Step 300
300
#F5A9AA
oklch(80.8% 0.09 18.4)
-
Step 400
400
#ED787D
oklch(70.8% 0.144 18.8)
-
Step 500
500
#E34E5C
oklch(63.1% 0.184 18.8)
-
Step 600
600
#CE2643
oklch(55.5% 0.2 18.4)
-
Step 700
700 (this color)
#B91F3A
oklch(51.1% 0.186 18.6)
-
Step 800
800
#90172C
oklch(42.6% 0.154 18.4)
-
Step 900
900
#741D27
oklch(37.7% 0.12 18.9)
-
Step 950
950
#441317
oklch(26.9% 0.075 19)
#B91F3A 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) | #504B3A | 0.206 |
| Deuteranopia (no green cones) | #766B35 | 0.188 |
| Tritanopia (no blue cones) | #CB002B | 0.037 |
| Achromatopsia (no color) | #606060 | 0.188 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B91F3A
#B91F3A
oklch(51.1% 0.186 18.6)
- #007579
#007579
oklch(51.1% 0.087 199)
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 #B91F3A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rose Red #BE013C ΔE 0.019
- Lipstick Red #C0022F ΔE 0.020
- Firebrick #B22222 ΔE 0.031
- Scarlet #BE0119 ΔE 0.032
- Rouge #AB1239 ΔE 0.035
- Ruby #CA0147 ΔE 0.040
- Cherry #CF0234 ΔE 0.043
- Raspberry #B00149 ΔE 0.043
Use #B91F3A 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.