#A73100
Closest named color: Rust Red (#AA2704). oklch(48.8% 0.161 37.6), rgb(167, 49, 0).
Aa
White text reads best on this color (6.81:1).
About this color
#A73100 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.161 and its hue 38°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Red (#AA2704), ΔE 0.015 away. White text reads best on it, at 6.81:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.161) |
| Temperature | warm |
| Nearest name | Rust Red (#AA2704) |
| Black text | 3.08:1 |
| White text | 6.81:1 |
Values
| HEX | #A73100 |
| RGB | rgb(167, 49, 0) |
| HSL | hsl(18, 100%, 33%) |
| OKLCH | oklch(48.8% 0.161 37.6) |
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 #A73100 | 6.81:1 | AA | Lc -87.4 | Fine for body text |
| Black text on #A73100 | 3.08:1 | AA large text | Lc 21.8 | Dividers and decoration only |
| #A73100 text on white | 6.81:1 | AA | Lc 82.3 | Fine for body text |
| #A73100 text on black | 3.08:1 | 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
#FCF3F0
oklch(97% 0.011 39.4)
-
Step 100
100
#F8E5DF
oklch(93.5% 0.022 38.3)
-
Step 200
200
#F4D0C5
oklch(88.5% 0.043 37.7)
-
Step 300
300
#EEB09D
oklch(81% 0.078 37.7)
-
Step 400
400
#E28366
oklch(70.6% 0.125 37.8)
-
Step 500
500
#D7603B
oklch(63.1% 0.159 37.7)
-
Step 600
600
#C34213
oklch(55.7% 0.173 37.7)
-
Step 700
700 (this color)
#A73100
oklch(48.8% 0.161 37.6)
-
Step 800
800
#882B09
oklch(42.6% 0.133 37.7)
-
Step 900
900
#6E2913
oklch(37.8% 0.104 37.7)
-
Step 950
950
#41190C
oklch(27.1% 0.066 38.3)
#A73100 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) | #554A00 | 0.164 |
| Deuteranopia (no green cones) | #726500 | 0.148 |
| Tritanopia (no blue cones) | #B9002A | 0.064 |
| Achromatopsia (no color) | #5B5B5B | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A73100
#A73100
oklch(48.8% 0.161 37.6)
- #006B80
#006B80
oklch(48.7% 0.087 217.6)
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 #A73100, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Red #AA2704 ΔE 0.015
- Russet #A13905 ΔE 0.016
- Rusty Red #AF2F0D ΔE 0.018
- Brick #A03623 ΔE 0.022
- Rufous #AE2012 ΔE 0.028
- Burnt Red #9F2305 ΔE 0.031
- Brown #A52A2A ΔE 0.034
- Burnt Umber #A0450E ΔE 0.036
Use #A73100 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.