#A5270C
Closest named color: Rust Red (#AA2704). oklch(47.5% 0.166 33.1), rgb(165, 39, 12).
Aa
White text reads best on this color (7.25:1).
About this color
#A5270C is a medium-dark, vivid red. In OKLCH its lightness is 48%, its chroma 0.166 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Red (#AA2704), ΔE 0.011 away. White text reads best on it, at 7.25:1.
| Hue family | Reds |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.166) |
| Temperature | warm |
| Nearest name | Rust Red (#AA2704) |
| Black text | 2.89:1 |
| White text | 7.25:1 |
Values
| HEX | #A5270C |
| RGB | rgb(165, 39, 12) |
| HSL | hsl(11, 86%, 35%) |
| OKLCH | oklch(47.5% 0.166 33.1) |
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 #A5270C | 7.25:1 | AAA | Lc -88.7 | Fine for body text |
| Black text on #A5270C | 2.89:1 | Fails | Lc 20.3 | Dividers and decoration only |
| #A5270C text on white | 7.25:1 | AAA | Lc 83.8 | Fine for body text |
| #A5270C text on black | 2.89:1 | Fails | Lc -18.2 | 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
#F9E5E0
oklch(93.7% 0.023 34.3)
-
Step 200
200
#F5CFC6
oklch(88.4% 0.045 33.5)
-
Step 300
300
#F0AE9F
oklch(80.9% 0.081 33.2)
-
Step 400
400
#E5816B
oklch(70.8% 0.128 33.4)
-
Step 500
500
#DA5C43
oklch(63.1% 0.164 33)
-
Step 600
600
#C63C21
oklch(55.6% 0.179 33)
-
Step 700
700 (this color)
#A5270C
oklch(47.5% 0.166 33.1)
-
Step 800
800
#8A2714
oklch(42.6% 0.137 32.9)
-
Step 900
900
#6F2618
oklch(37.6% 0.107 32.9)
-
Step 950
950
#42170F
oklch(27% 0.069 32.4)
#A5270C 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) | #4F4505 | 0.175 |
| Deuteranopia (no green cones) | #6E6100 | 0.158 |
| Tritanopia (no blue cones) | #B60023 | 0.047 |
| Achromatopsia (no color) | #575757 | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A5270C
#A5270C
oklch(47.5% 0.166 33.1)
- #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 #A5270C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Red #AA2704 ΔE 0.011
- Burnt Red #9F2305 ΔE 0.015
- Rufous #AE2012 ΔE 0.019
- Brown #A52A2A ΔE 0.023
- Brick #A03623 ΔE 0.024
- Rusty Red #AF2F0D ΔE 0.026
- Russet #A13905 ΔE 0.030
- Firebrick #B22222 ΔE 0.032
Use #A5270C 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.