#B9243E
Closest named color: Rose Red (#BE013C). oklch(51.5% 0.183 17.8), rgb(185, 36, 62).
Aa
White text reads best on this color (6.20:1).
About this color
#B9243E is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.183 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Rose Red (#BE013C), ΔE 0.022 away. White text reads best on it, at 6.20:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.183) |
| Temperature | warm |
| Nearest name | Rose Red (#BE013C) |
| Black text | 3.38:1 |
| White text | 6.20:1 |
Values
| HEX | #B9243E |
| RGB | rgb(185, 36, 62) |
| HSL | hsl(350, 67%, 43%) |
| OKLCH | oklch(51.5% 0.183 17.8) |
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 #B9243E | 6.20:1 | AA | Lc -84.6 | Fine for body text |
| Black text on #B9243E | 3.38:1 | AA large text | Lc 24.7 | Dividers and decoration only |
| #B9243E text on white | 6.20:1 | AA | Lc 79.3 | Fine for body text |
| #B9243E text on black | 3.38:1 | AA large text | Lc -22.5 | 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
#FDF2F2
oklch(97% 0.012 17.4)
-
Step 100
100
#FBE3E3
oklch(93.5% 0.026 17.6)
-
Step 200
200
#F8CDCD
oklch(88.5% 0.049 18.1)
-
Step 300
300
#F4AAAB
oklch(80.9% 0.088 18.3)
-
Step 400
400
#EB797F
oklch(70.7% 0.141 18)
-
Step 500
500
#E14F5F
oklch(63% 0.181 17.7)
-
Step 600
600
#CD2A46
oklch(55.7% 0.197 17.8)
-
Step 700
700 (this color)
#B9243E
oklch(51.5% 0.183 17.8)
-
Step 800
800
#8F1A2E
oklch(42.7% 0.151 17.9)
-
Step 900
900
#731E29
oklch(37.6% 0.118 17.7)
-
Step 950
950
#441318
oklch(26.9% 0.075 17.8)
#B9243E 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) | #514D3E | 0.203 |
| Deuteranopia (no green cones) | #766C3A | 0.185 |
| Tritanopia (no blue cones) | #CB0030 | 0.037 |
| Achromatopsia (no color) | #616161 | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B9243E
#B9243E
oklch(51.5% 0.183 17.8)
- #007779
#007779
oklch(51.6% 0.088 196.8)
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 #B9243E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rose Red #BE013C ΔE 0.022
- Lipstick Red #C0022F ΔE 0.024
- Firebrick #B22222 ΔE 0.034
- Scarlet #BE0119 ΔE 0.037
- Rouge #AB1239 ΔE 0.038
- Ruby #CA0147 ΔE 0.039
- Dull Red #BB3F3F ΔE 0.042
- Cherry #CF0234 ΔE 0.043
Use #B9243E 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.