#A73904
Closest named color: Russet (#A13905). oklch(49.8% 0.154 39.9), rgb(167, 57, 4).
Aa
White text reads best on this color (6.50:1).
About this color
#A73904 is a medium-dark, vivid red. In OKLCH its lightness is 50%, its chroma 0.154 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Russet (#A13905), ΔE 0.012 away. White text reads best on it, at 6.50:1.
| Hue family | Reds |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.154) |
| Temperature | warm |
| Nearest name | Russet (#A13905) |
| Black text | 3.23:1 |
| White text | 6.50:1 |
Values
| HEX | #A73904 |
| RGB | rgb(167, 57, 4) |
| HSL | hsl(20, 95%, 34%) |
| OKLCH | oklch(49.8% 0.154 39.9) |
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 #A73904 | 6.50:1 | AA | Lc -86.3 | Fine for body text |
| Black text on #A73904 | 3.23:1 | AA large text | Lc 22.8 | Dividers and decoration only |
| #A73904 text on white | 6.50:1 | AA | Lc 81.2 | Fine for body text |
| #A73904 text on black | 3.23:1 | AA large text | Lc -20.7 | 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
#F3D1C5
oklch(88.6% 0.042 40.4)
-
Step 300
300
#ECB19D
oklch(81% 0.075 39.5)
-
Step 400
400
#DF8566
oklch(70.6% 0.12 39.7)
-
Step 500
500
#D4633A
oklch(63% 0.153 39.8)
-
Step 600
600
#BF4712
oklch(55.6% 0.165 40.2)
-
Step 700
700 (this color)
#A73904
oklch(49.8% 0.154 39.9)
-
Step 800
800
#862F09
oklch(42.8% 0.128 40)
-
Step 900
900
#6C2B12
oklch(37.8% 0.1 40.1)
-
Step 950
950
#3F1A0C
oklch(26.9% 0.063 40.6)
#A73904 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) | #5A4E00 | 0.152 |
| Deuteranopia (no green cones) | #756700 | 0.137 |
| Tritanopia (no blue cones) | #B81631 | 0.068 |
| Achromatopsia (no color) | #5E5E5E | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A73904
#A73904
oklch(49.8% 0.154 39.9)
- #006E86
#006E86
oklch(49.8% 0.091 219.9)
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 #A73904, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Russet #A13905 ΔE 0.012
- Rusty Red #AF2F0D ΔE 0.022
- Burnt Umber #A0450E ΔE 0.024
- Brick #A03623 ΔE 0.026
- Rust Red #AA2704 ΔE 0.028
- Rufous #AE2012 ΔE 0.039
- Burnt Red #9F2305 ΔE 0.043
- Brown #A52A2A ΔE 0.043
Use #A73904 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.