#B74403
Closest named color: Sinopia (#BB3E03). oklch(53.9% 0.161 41.9), rgb(183, 68, 3).
Aa
White text reads best on this color (5.46:1).
About this color
#B74403 is a medium-dark, vivid orange. In OKLCH its lightness is 54%, its chroma 0.161 and its hue 42°. Its hue sits on the warm side of the wheel. The nearest named color is Sinopia (#BB3E03), ΔE 0.012 away. White text reads best on it, at 5.46:1.
| Hue family | Oranges |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.161) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 3.84:1 |
| White text | 5.46:1 |
Values
| HEX | #B74403 |
| RGB | rgb(183, 68, 3) |
| HSL | hsl(22, 97%, 36%) |
| OKLCH | oklch(53.9% 0.161 41.9) |
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 #B74403 | 5.46:1 | AA | Lc -81.7 | Fine for body text |
| Black text on #B74403 | 3.84:1 | AA large text | Lc 27.8 | Dividers and decoration only |
| #B74403 text on white | 5.46:1 | AA | Lc 76.3 | Fine for body text |
| #B74403 text on black | 3.84:1 | AA large text | Lc -25.4 | 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 600.
-
Step 50
50
#FCF3F0
oklch(97% 0.011 39.4)
-
Step 100
100
#F7E6DF
oklch(93.7% 0.021 43.9)
-
Step 200
200
#F2D1C5
oklch(88.5% 0.041 41)
-
Step 300
300
#EAB29C
oklch(80.9% 0.072 42.4)
-
Step 400
400
#DD8765
oklch(70.7% 0.116 42.2)
-
Step 500
500
#D26639
oklch(63.2% 0.149 42)
-
Step 600
600 (this color)
#B74403
oklch(53.9% 0.161 41.9)
-
Step 700
700
#A23B00
oklch(49.2% 0.148 42.2)
-
Step 800
800
#843107
oklch(42.7% 0.124 42)
-
Step 900
900
#6A2C11
oklch(37.6% 0.097 42)
-
Step 950
950
#3F1B0C
oklch(27.1% 0.061 42.2)
#B74403 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) | #665900 | 0.156 |
| Deuteranopia (no green cones) | #827300 | 0.141 |
| Tritanopia (no blue cones) | #CA233A | 0.076 |
| Achromatopsia (no color) | #696969 | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #B74403
#B74403
oklch(53.9% 0.161 41.9)
- #007A97
#007A97
oklch(53.7% 0.099 222.1)
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 #B74403, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sinopia #BB3E03 ΔE 0.012
- Brick Orange #C14A09 ΔE 0.025
- Cinnamon #AC4F06 ΔE 0.028
- Burnt Siena #B75203 ΔE 0.029
- Burnt Orange #C04E01 ΔE 0.029
- Rusty Red #AF2F0D ΔE 0.044
- Burnt Umber #A0450E ΔE 0.045
- Rust Orange #C45508 ΔE 0.046
Use #B74403 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.