#B24737
Closest named color: Dull Red (#BB3F3F). oklch(53.9% 0.143 30.8), rgb(178, 71, 55).
Aa
White text reads best on this color (5.45:1).
About this color
#B24737 is a medium-dark, vivid red. In OKLCH its lightness is 54%, its chroma 0.143 and its hue 31°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.025 away. White text reads best on it, at 5.45:1.
| Hue family | Reds |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.143) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.84:1 |
| White text | 5.45:1 |
Values
| HEX | #B24737 |
| RGB | rgb(178, 71, 55) |
| HSL | hsl(8, 53%, 46%) |
| OKLCH | oklch(53.9% 0.143 30.8) |
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 #B24737 | 5.45:1 | AA | Lc -81.8 | Fine for body text |
| Black text on #B24737 | 3.84:1 | AA large text | Lc 27.6 | Dividers and decoration only |
| #B24737 text on white | 5.45:1 | AA | Lc 76.5 | Fine for body text |
| #B24737 text on black | 3.84:1 | AA large text | Lc -25.3 | 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 600.
-
Step 50
50
#FBF3F2
oklch(97% 0.009 26)
-
Step 100
100
#F6E6E2
oklch(93.7% 0.018 34.3)
-
Step 200
200
#F0D1CB
oklch(88.5% 0.036 30.8)
-
Step 300
300
#E7B2A8
oklch(80.9% 0.064 30.7)
-
Step 400
400
#D98879
oklch(70.7% 0.103 31.1)
-
Step 500
500
#CD6857
oklch(63.2% 0.132 31)
-
Step 600
600 (this color)
#B24737
oklch(53.9% 0.143 30.8)
-
Step 700
700
#9E3D2E
oklch(49.1% 0.133 31.1)
-
Step 800
800
#803327
oklch(42.7% 0.109 31)
-
Step 900
900
#682D24
oklch(37.7% 0.087 30.5)
-
Step 950
950
#3D1B16
oklch(27% 0.055 29.8)
#B24737 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) | #645B35 | 0.147 |
| Deuteranopia (no green cones) | #7E7234 | 0.136 |
| Tritanopia (no blue cones) | #C33044 | 0.052 |
| Achromatopsia (no color) | #696969 | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B24737
#B24737
oklch(53.9% 0.143 30.8)
- #007C8D
#007C8D
oklch(53.8% 0.093 211.4)
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 #B24737, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.025
- Dusty Red #B9484E ΔE 0.032
- Sinopia #BB3E03 ΔE 0.035
- Sienna #A0522D ΔE 0.043
- Brick Orange #C14A09 ΔE 0.045
- Cinnamon #AC4F06 ΔE 0.046
- Rusty Red #AF2F0D ΔE 0.047
- Burnt Siena #B75203 ΔE 0.049
Use #B24737 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.