#A73B01
Closest named color: Russet (#A13905). oklch(50% 0.153 41.1), rgb(167, 59, 1).
Aa
White text reads best on this color (6.42:1).
About this color
#A73B01 is a medium-dark, vivid orange. In OKLCH its lightness is 50%, its chroma 0.153 and its hue 41°. Its hue sits on the warm side of the wheel. The nearest named color is Russet (#A13905), ΔE 0.014 away. White text reads best on it, at 6.42:1.
| Hue family | Oranges |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.153) |
| Temperature | warm |
| Nearest name | Russet (#A13905) |
| Black text | 3.26:1 |
| White text | 6.42:1 |
Values
| HEX | #A73B01 |
| RGB | rgb(167, 59, 1) |
| HSL | hsl(21, 99%, 33%) |
| OKLCH | oklch(50% 0.153 41.1) |
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 #A73B01 | 6.42:1 | AA | Lc -86.1 | Fine for body text |
| Black text on #A73B01 | 3.26:1 | AA large text | Lc 23.1 | Dividers and decoration only |
| #A73B01 text on white | 6.42:1 | AA | Lc 80.9 | Fine for body text |
| #A73B01 text on black | 3.26:1 | AA large text | Lc -20.9 | 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
#F7E6DF
oklch(93.7% 0.021 43.9)
-
Step 200
200
#F2D1C5
oklch(88.5% 0.041 41)
-
Step 300
300
#EBB19C
oklch(80.9% 0.074 40.8)
-
Step 400
400
#DE8665
oklch(70.6% 0.118 41.2)
-
Step 500
500
#D36439
oklch(63% 0.152 40.8)
-
Step 600
600
#BE480E
oklch(55.6% 0.164 41.2)
-
Step 700
700 (this color)
#A73B01
oklch(50% 0.153 41.1)
-
Step 800
800
#853006
oklch(42.7% 0.126 41.4)
-
Step 900
900
#6B2B11
oklch(37.6% 0.099 40.9)
-
Step 950
950
#3F1A0C
oklch(26.9% 0.063 40.6)
#A73B01 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) | #5B4F00 | 0.149 |
| Deuteranopia (no green cones) | #756800 | 0.136 |
| Tritanopia (no blue cones) | #B81A32 | 0.070 |
| Achromatopsia (no color) | #5F5F5F | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A73B01
#A73B01
oklch(50% 0.153 41.1)
- #006F88
#006F88
oklch(50.1% 0.092 220.6)
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 #A73B01, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Russet #A13905 ΔE 0.014
- Burnt Umber #A0450E ΔE 0.021
- Rusty Red #AF2F0D ΔE 0.025
- Brick #A03623 ΔE 0.029
- Rust Red #AA2704 ΔE 0.032
- Sinopia #BB3E03 ΔE 0.042
- Rufous #AE2012 ΔE 0.043
- Cinnamon #AC4F06 ΔE 0.044
Use #A73B01 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.