#B52F14
Closest named color: Rusty Red (#AF2F0D). oklch(51.2% 0.175 33), rgb(181, 47, 20).
Aa
White text reads best on this color (6.21:1).
About this color
#B52F14 is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.175 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Rusty Red (#AF2F0D), ΔE 0.013 away. White text reads best on it, at 6.21:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.175) |
| Temperature | warm |
| Nearest name | Rusty Red (#AF2F0D) |
| Black text | 3.38:1 |
| White text | 6.21:1 |
Values
| HEX | #B52F14 |
| RGB | rgb(181, 47, 20) |
| HSL | hsl(10, 80%, 39%) |
| OKLCH | oklch(51.2% 0.175 33) |
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 #B52F14 | 6.21:1 | AA | Lc -84.8 | Fine for body text |
| Black text on #B52F14 | 3.38:1 | AA large text | Lc 24.5 | Dividers and decoration only |
| #B52F14 text on white | 6.21:1 | AA | Lc 79.6 | Fine for body text |
| #B52F14 text on black | 3.38:1 | AA large text | Lc -22.2 | 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
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FAE4E0
oklch(93.6% 0.025 29.9)
-
Step 200
200
#F7CFC6
oklch(88.6% 0.047 32.8)
-
Step 300
300
#F2AD9E
oklch(80.9% 0.084 32.6)
-
Step 400
400
#E87E68
oklch(70.6% 0.136 32.9)
-
Step 500
500
#DE583E
oklch(63.1% 0.173 32.9)
-
Step 600
600
#C9371A
oklch(55.5% 0.187 33)
-
Step 700
700 (this color)
#B52F14
oklch(51.2% 0.175 33)
-
Step 800
800
#8D230E
oklch(42.7% 0.145 32.9)
-
Step 900
900
#712415
oklch(37.7% 0.112 33)
-
Step 950
950
#43160D
oklch(27% 0.072 33.1)
#B52F14 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) | #594E0D | 0.183 |
| Deuteranopia (no green cones) | #796C08 | 0.168 |
| Tritanopia (no blue cones) | #C8002B | 0.053 |
| Achromatopsia (no color) | #616161 | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B52F14
#B52F14
oklch(51.2% 0.175 33)
- #007485
#007485
oklch(51.3% 0.09 212.3)
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 #B52F14, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rusty Red #AF2F0D ΔE 0.013
- Firebrick #B22222 ΔE 0.025
- Rufous #AE2012 ΔE 0.027
- Rust Red #AA2704 ΔE 0.028
- Sinopia #BB3E03 ΔE 0.032
- Scarlet #BE0119 ΔE 0.039
- Brown #A52A2A ΔE 0.041
- Brick #A03623 ΔE 0.041
Use #B52F14 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.