#B52240
Closest named color: Rose Red (#BE013C). oklch(50.7% 0.181 16.1), rgb(181, 34, 64).
Aa
White text reads best on this color (6.42:1).
About this color
#B52240 is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.181 and its hue 16°. Its hue sits on the warm side of the wheel. The nearest named color is Rose Red (#BE013C), ΔE 0.023 away. White text reads best on it, at 6.42:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.181) |
| Temperature | warm |
| Nearest name | Rose Red (#BE013C) |
| Black text | 3.26:1 |
| White text | 6.42:1 |
Values
| HEX | #B52240 |
| RGB | rgb(181, 34, 64) |
| HSL | hsl(348, 68%, 42%) |
| OKLCH | oklch(50.7% 0.181 16.1) |
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 #B52240 | 6.42:1 | AA | Lc -85.5 | Fine for body text |
| Black text on #B52240 | 3.26:1 | AA large text | Lc 23.7 | Dividers and decoration only |
| #B52240 text on white | 6.42:1 | AA | Lc 80.3 | Fine for body text |
| #B52240 text on black | 3.26:1 | AA large text | Lc -21.5 | 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
#FDF2F3
oklch(97% 0.012 11)
-
Step 100
100
#FAE3E4
oklch(93.5% 0.025 14.6)
-
Step 200
200
#F8CDCE
oklch(88.6% 0.049 16.5)
-
Step 300
300
#F4AAAD
oklch(81% 0.087 16.5)
-
Step 400
400
#EA7982
oklch(70.7% 0.139 16.3)
-
Step 500
500
#E05063
oklch(63% 0.179 16.2)
-
Step 600
600
#CB2B4A
oklch(55.5% 0.194 16.2)
-
Step 700
700 (this color)
#B52240
oklch(50.7% 0.181 16.1)
-
Step 800
800
#8E1B32
oklch(42.6% 0.149 15.8)
-
Step 900
900
#731F2C
oklch(37.8% 0.117 16)
-
Step 950
950
#44141A
oklch(27.1% 0.074 16.1)
#B52240 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) | #4E4B40 | 0.201 |
| Deuteranopia (no green cones) | #73693C | 0.183 |
| Tritanopia (no blue cones) | #C7002F | 0.039 |
| Achromatopsia (no color) | #5F5F5F | 0.182 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B52240
#B52240
oklch(50.7% 0.181 16.1)
- #007475
#007475
oklch(50.6% 0.086 195.8)
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 #B52240, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rose Red #BE013C ΔE 0.023
- Lipstick Red #C0022F ΔE 0.029
- Rouge #AB1239 ΔE 0.029
- Firebrick #B22222 ΔE 0.035
- Raspberry #B00149 ΔE 0.036
- Scarlet #BE0119 ΔE 0.041
- Ruby #CA0147 ΔE 0.044
- Brown #A52A2A ΔE 0.044
Use #B52240 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.