#A2180E
Closest named color: Burnt Red (#9F2305). oklch(45.8% 0.173 29.7), rgb(162, 24, 14).
Aa
White text reads best on this color (7.85:1).
About this color
#A2180E is a medium-dark, vivid red. In OKLCH its lightness is 46%, its chroma 0.173 and its hue 30°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Red (#9F2305), ΔE 0.015 away. White text reads best on it, at 7.85:1.
| Hue family | Reds |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.173) |
| Temperature | warm |
| Nearest name | Burnt Red (#9F2305) |
| Black text | 2.67:1 |
| White text | 7.85:1 |
Values
| HEX | #A2180E |
| RGB | rgb(162, 24, 14) |
| HSL | hsl(4, 84%, 35%) |
| OKLCH | oklch(45.8% 0.173 29.7) |
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 #A2180E | 7.85:1 | AAA | Lc -90.3 | Preferred for body text |
| Black text on #A2180E | 2.67:1 | Fails | Lc 18.6 | Dividers and decoration only |
| #A2180E text on white | 7.85:1 | AAA | Lc 85.4 | Fine for body text |
| #A2180E text on black | 2.67:1 | Fails | Lc -16.6 | 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 800.
-
Step 50
50
#FEF2F0
oklch(97% 0.013 28.9)
-
Step 100
100
#FDE3DF
oklch(93.6% 0.029 28.1)
-
Step 200
200
#FCCCC4
oklch(88.5% 0.056 29.2)
-
Step 300
300
#FBA89A
oklch(80.9% 0.101 30)
-
Step 400
400
#F57462
oklch(70.8% 0.162 29.8)
-
Step 500
500
#EC4534
oklch(63.1% 0.206 29.7)
-
Step 600
600
#D80B01
oklch(55.6% 0.225 29.6)
-
Step 700
700
#B70600
oklch(49.1% 0.199 29.6)
-
Step 800
800 (this color)
#A2180E
oklch(45.8% 0.173 29.7)
-
Step 900
900
#79160E
oklch(37.6% 0.135 29.6)
-
Step 950
950
#48100A
oklch(27.1% 0.086 29.8)
#A2180E 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) | #473F09 | 0.188 |
| Deuteranopia (no green cones) | #685C01 | 0.169 |
| Tritanopia (no blue cones) | #B30018 | 0.036 |
| Achromatopsia (no color) | #525252 | 0.174 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A2180E
#A2180E
oklch(45.8% 0.173 29.7)
- #006370
#006370
oklch(45.8% 0.079 210.3)
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 #A2180E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Red #9F2305 ΔE 0.015
- Auburn #9B2226 ΔE 0.022
- Carmine #9D0216 ΔE 0.023
- Deep Red #9A0200 ΔE 0.027
- Brown #A52A2A ΔE 0.029
- Rust Red #AA2704 ΔE 0.029
- Rufous #AE2012 ΔE 0.029
- Blood Red #980002 ΔE 0.031
Use #A2180E 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.