#B50520
Closest named color: Scarlet (#BE0119). oklch(48.9% 0.196 24.2), rgb(181, 5, 32).
Aa
White text reads best on this color (6.98:1).
About this color
#B50520 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.196 and its hue 24°. Its hue sits on the warm side of the wheel. The nearest named color is Scarlet (#BE0119), ΔE 0.019 away. White text reads best on it, at 6.98:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.196) |
| Temperature | warm |
| Nearest name | Scarlet (#BE0119) |
| Black text | 3.00:1 |
| White text | 6.98:1 |
Values
| HEX | #B50520 |
| RGB | rgb(181, 5, 32) |
| HSL | hsl(351, 95%, 36%) |
| OKLCH | oklch(48.9% 0.196 24.2) |
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 #B50520 | 6.98:1 | AA | Lc -86.8 | Fine for body text |
| Black text on #B50520 | 3.00:1 | AA large text | Lc 22.4 | Dividers and decoration only |
| #B50520 text on white | 6.98:1 | AA | Lc 81.7 | Fine for body text |
| #B50520 text on black | 3.00:1 | AA large text | Lc -20.2 | 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
#FACCC8
oklch(88.4% 0.053 24)
-
Step 300
300
#F8A9A3
oklch(81% 0.094 24.2)
-
Step 400
400
#F07671
oklch(70.7% 0.151 24.1)
-
Step 500
500
#E74A4B
oklch(63.1% 0.194 24.3)
-
Step 600
600
#D31E2E
oklch(55.7% 0.211 24.2)
-
Step 700
700 (this color)
#B50520
oklch(48.9% 0.196 24.2)
-
Step 800
800
#94111D
oklch(42.8% 0.162 24.2)
-
Step 900
900
#761A1D
oklch(37.6% 0.126 24.2)
-
Step 950
950
#461212
oklch(27.1% 0.08 24.2)
#B50520 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) | #4A431E | 0.217 |
| Deuteranopia (no green cones) | #726517 | 0.195 |
| Tritanopia (no blue cones) | #C80015 | 0.040 |
| Achromatopsia (no color) | #595959 | 0.197 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B50520
#B50520
oklch(48.9% 0.196 24.2)
- #006D76
#006D76
oklch(48.8% 0.083 204.8)
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 #B50520, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Scarlet #BE0119 ΔE 0.019
- Firebrick #B22222 ΔE 0.020
- Rufous #AE2012 ΔE 0.026
- Lipstick Red #C0022F ΔE 0.027
- Rouge #AB1239 ΔE 0.034
- Rose Red #BE013C ΔE 0.036
- Brown #A52A2A ΔE 0.037
- Rust Red #AA2704 ΔE 0.039
Use #B50520 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.