#A73019
Closest named color: Rust Red (#AA2704). oklch(48.8% 0.159 32.9), rgb(167, 48, 25).
Aa
White text reads best on this color (6.81:1).
About this color
#A73019 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.159 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Red (#AA2704), ΔE 0.014 away. White text reads best on it, at 6.81:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.159) |
| Temperature | warm |
| Nearest name | Rust Red (#AA2704) |
| Black text | 3.07:1 |
| White text | 6.81:1 |
Values
| HEX | #A73019 |
| RGB | rgb(167, 48, 25) |
| HSL | hsl(10, 74%, 38%) |
| OKLCH | oklch(48.8% 0.159 32.9) |
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 #A73019 | 6.81:1 | AA | Lc -87.4 | Fine for body text |
| Black text on #A73019 | 3.07:1 | AA large text | Lc 21.7 | Dividers and decoration only |
| #A73019 text on white | 6.81:1 | AA | Lc 82.4 | Fine for body text |
| #A73019 text on black | 3.07:1 | AA large text | Lc -19.6 | 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
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F8E5E0
oklch(93.6% 0.022 35.1)
-
Step 200
200
#F4D0C7
oklch(88.6% 0.043 34.3)
-
Step 300
300
#EEAFA1
oklch(80.9% 0.077 32.9)
-
Step 400
400
#E2826E
oklch(70.6% 0.123 32.7)
-
Step 500
500
#D75F47
oklch(63.1% 0.156 33)
-
Step 600
600
#C34027
oklch(55.6% 0.172 32.9)
-
Step 700
700 (this color)
#A73019
oklch(48.8% 0.159 32.9)
-
Step 800
800
#882A18
oklch(42.6% 0.132 32.9)
-
Step 900
900
#6E281A
oklch(37.8% 0.103 33.1)
-
Step 950
950
#411810
oklch(27% 0.066 32.7)
#A73019 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) | #544A15 | 0.166 |
| Deuteranopia (no green cones) | #716412 | 0.151 |
| Tritanopia (no blue cones) | #B8002C | 0.055 |
| Achromatopsia (no color) | #5B5B5B | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A73019
#A73019
oklch(48.8% 0.159 32.9)
- #006C7D
#006C7D
oklch(48.8% 0.086 213.4)
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 #A73019, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Red #AA2704 ΔE 0.014
- Brick #A03623 ΔE 0.015
- Rusty Red #AF2F0D ΔE 0.017
- Rufous #AE2012 ΔE 0.022
- Brown #A52A2A ΔE 0.022
- Russet #A13905 ΔE 0.024
- Firebrick #B22222 ΔE 0.029
- Burnt Red #9F2305 ΔE 0.029
Use #A73019 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.