#A82100
Closest named color: Rust Red (#AA2704). oklch(47.5% 0.174 33.2), rgb(168, 33, 0).
Aa
White text reads best on this color (7.28:1).
About this color
#A82100 is a medium-dark, vivid red. In OKLCH its lightness is 48%, its chroma 0.174 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Red (#AA2704), ΔE 0.009 away. White text reads best on it, at 7.28:1.
| Hue family | Reds |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.174) |
| Temperature | warm |
| Nearest name | Rust Red (#AA2704) |
| Black text | 2.88:1 |
| White text | 7.28:1 |
Values
| HEX | #A82100 |
| RGB | rgb(168, 33, 0) |
| HSL | hsl(12, 100%, 33%) |
| OKLCH | oklch(47.5% 0.174 33.2) |
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 #A82100 | 7.28:1 | AAA | Lc -88.6 | Fine for body text |
| Black text on #A82100 | 2.88:1 | Fails | Lc 20.4 | Dividers and decoration only |
| #A82100 text on white | 7.28:1 | AAA | Lc 83.6 | Fine for body text |
| #A82100 text on black | 2.88:1 | Fails | Lc -18.3 | 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
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#FAE4DF
oklch(93.5% 0.025 32.9)
-
Step 200
200
#F6CFC5
oklch(88.5% 0.046 34.7)
-
Step 300
300
#F2AD9E
oklch(80.9% 0.084 32.6)
-
Step 400
400
#E87F68
oklch(70.8% 0.135 33.4)
-
Step 500
500
#DE583E
oklch(63.1% 0.173 32.9)
-
Step 600
600
#C93719
oklch(55.5% 0.187 33.1)
-
Step 700
700 (this color)
#A82100
oklch(47.5% 0.174 33.2)
-
Step 800
800
#8D240E
oklch(42.8% 0.144 33.2)
-
Step 900
900
#712414
oklch(37.7% 0.112 33.5)
-
Step 950
950
#43160D
oklch(27% 0.072 33.1)
#A82100 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) | #4E4300 | 0.184 |
| Deuteranopia (no green cones) | #6E6100 | 0.165 |
| Tritanopia (no blue cones) | #BA001D | 0.044 |
| Achromatopsia (no color) | #565656 | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A82100
#A82100
oklch(47.5% 0.174 33.2)
- #006878
#006878
oklch(47.5% 0.083 213)
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 #A82100, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Red #AA2704 ΔE 0.009
- Rufous #AE2012 ΔE 0.015
- Burnt Red #9F2305 ΔE 0.018
- Rusty Red #AF2F0D ΔE 0.027
- Brown #A52A2A ΔE 0.027
- Firebrick #B22222 ΔE 0.030
- Brick #A03623 ΔE 0.031
- Russet #A13905 ΔE 0.036
Use #A82100 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.