#B04024
Closest named color: Sinopia (#BB3E03). oklch(52.4% 0.152 35.1), rgb(176, 64, 36).
Aa
White text reads best on this color (5.82:1).
About this color
#B04024 is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.152 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Sinopia (#BB3E03), ΔE 0.026 away. White text reads best on it, at 5.82:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.152) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 3.60:1 |
| White text | 5.82:1 |
Values
| HEX | #B04024 |
| RGB | rgb(176, 64, 36) |
| HSL | hsl(12, 66%, 42%) |
| OKLCH | oklch(52.4% 0.152 35.1) |
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 #B04024 | 5.82:1 | AA | Lc -83.5 | Fine for body text |
| Black text on #B04024 | 3.60:1 | AA large text | Lc 25.8 | Dividers and decoration only |
| #B04024 text on white | 5.82:1 | AA | Lc 78.3 | Fine for body text |
| #B04024 text on black | 3.60:1 | AA large text | Lc -23.5 | 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 600.
-
Step 50
50
#FBF3F1
oklch(97% 0.009 34.3)
-
Step 100
100
#F7E6E1
oklch(93.7% 0.02 37)
-
Step 200
200
#F1D1C8
oklch(88.5% 0.038 36.2)
-
Step 300
300
#E9B1A3
oklch(80.8% 0.069 34.5)
-
Step 400
400
#DC8771
oklch(70.8% 0.11 35.3)
-
Step 500
500
#D0664C
oklch(63.2% 0.14 34.9)
-
Step 600
600 (this color)
#B04024
oklch(52.4% 0.152 35.1)
-
Step 700
700
#A13A21
oklch(49.1% 0.142 34.8)
-
Step 800
800
#83311D
oklch(42.7% 0.118 34.9)
-
Step 900
900
#692C1D
oklch(37.6% 0.092 35)
-
Step 950
950
#3E1B12
oklch(27.1% 0.057 35.5)
#B04024 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) | #605520 | 0.154 |
| Deuteranopia (no green cones) | #7B6E20 | 0.141 |
| Tritanopia (no blue cones) | #C2223A | 0.061 |
| Achromatopsia (no color) | #656565 | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B04024
#B04024
oklch(52.4% 0.152 35.1)
- #00778B
#00778B
oklch(52.4% 0.092 214.8)
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 #B04024, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sinopia #BB3E03 ΔE 0.026
- Rusty Red #AF2F0D ΔE 0.029
- Dull Red #BB3F3F ΔE 0.037
- Burnt Umber #A0450E ΔE 0.037
- Russet #A13905 ΔE 0.039
- Cinnamon #AC4F06 ΔE 0.040
- Brick #A03623 ΔE 0.041
- Sienna #A0522D ΔE 0.043
Use #B04024 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.