#B04000
Closest named color: Sinopia (#BB3E03). oklch(52.2% 0.158 41.8), rgb(176, 64, 0).
Aa
White text reads best on this color (5.86:1).
About this color
#B04000 is a medium-dark, vivid orange. In OKLCH its lightness is 52%, its chroma 0.158 and its hue 42°. Its hue sits on the warm side of the wheel. The nearest named color is Sinopia (#BB3E03), ΔE 0.022 away. White text reads best on it, at 5.86:1.
| Hue family | Oranges |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.158) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 3.57:1 |
| White text | 5.86:1 |
Values
| HEX | #B04000 |
| RGB | rgb(176, 64, 0) |
| HSL | hsl(22, 100%, 35%) |
| OKLCH | oklch(52.2% 0.158 41.8) |
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 #B04000 | 5.86:1 | AA | Lc -83.6 | Fine for body text |
| Black text on #B04000 | 3.57:1 | AA large text | Lc 25.7 | Dividers and decoration only |
| #B04000 text on white | 5.86:1 | AA | Lc 78.4 | Fine for body text |
| #B04000 text on black | 3.57:1 | AA large text | Lc -23.4 | 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
#FCF3F0
oklch(97% 0.011 39.4)
-
Step 100
100
#F8E5DF
oklch(93.5% 0.022 38.3)
-
Step 200
200
#F3D1C4
oklch(88.6% 0.042 42.1)
-
Step 300
300
#ECB19A
oklch(80.9% 0.076 42.3)
-
Step 400
400
#E08562
oklch(70.6% 0.122 41.6)
-
Step 500
500
#D56333
oklch(63.1% 0.156 41.8)
-
Step 600
600
#C04600
oklch(55.6% 0.169 41.6)
-
Step 700
700 (this color)
#B04000
oklch(52.2% 0.158 41.8)
-
Step 800
800
#862F00
oklch(42.8% 0.129 42)
-
Step 900
900
#6C2B0D
oklch(37.7% 0.101 42.3)
-
Step 950
950
#401A0A
oklch(27.1% 0.065 42.1)
#B04000 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) | #615500 | 0.153 |
| Deuteranopia (no green cones) | #7D6E00 | 0.138 |
| Tritanopia (no blue cones) | #C21F36 | 0.074 |
| Achromatopsia (no color) | #656565 | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B04000
#B04000
oklch(52.2% 0.158 41.8)
- #007591
#007591
oklch(52.1% 0.096 222.1)
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 #B04000, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sinopia #BB3E03 ΔE 0.022
- Cinnamon #AC4F06 ΔE 0.030
- Burnt Umber #A0450E ΔE 0.031
- Rusty Red #AF2F0D ΔE 0.032
- Russet #A13905 ΔE 0.036
- Burnt Siena #B75203 ΔE 0.041
- Brick Orange #C14A09 ΔE 0.042
- Sienna #A0522D ΔE 0.044
Use #B04000 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.