#A0273A
Closest named color: Brown (#A52A2A). oklch(47.2% 0.156 17.1), rgb(160, 39, 58).
Aa
White text reads best on this color (7.37:1).
About this color
#A0273A is a medium-dark, vivid red. In OKLCH its lightness is 47%, its chroma 0.156 and its hue 17°. Its hue sits on the warm side of the wheel. The nearest named color is Brown (#A52A2A), ΔE 0.025 away. White text reads best on it, at 7.37:1.
| Hue family | Reds |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.156) |
| Temperature | warm |
| Nearest name | Brown (#A52A2A) |
| Black text | 2.84:1 |
| White text | 7.37:1 |
Values
| HEX | #A0273A |
| RGB | rgb(160, 39, 58) |
| HSL | hsl(351, 61%, 39%) |
| OKLCH | oklch(47.2% 0.156 17.1) |
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 #A0273A | 7.37:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #A0273A | 2.84:1 | Fails | Lc 19.6 | Dividers and decoration only |
| #A0273A text on white | 7.37:1 | AAA | Lc 84.4 | Fine for body text |
| #A0273A text on black | 2.84:1 | Fails | Lc -17.6 | 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
#FCF3F3
oklch(97.1% 0.01 17.3)
-
Step 100
100
#F8E4E4
oklch(93.5% 0.022 17.6)
-
Step 200
200
#F4CFCF
oklch(88.6% 0.042 18)
-
Step 300
300
#EEADAF
oklch(80.9% 0.077 16.8)
-
Step 400
400
#E28085
oklch(70.8% 0.121 17.4)
-
Step 500
500
#D65C67
oklch(63.1% 0.154 17.1)
-
Step 600
600
#C23D4E
oklch(55.7% 0.169 17.3)
-
Step 700
700 (this color)
#A0273A
oklch(47.2% 0.156 17.1)
-
Step 800
800
#872834
oklch(42.7% 0.129 17.3)
-
Step 900
900
#6D262E
oklch(37.7% 0.101 16.7)
-
Step 950
950
#40171B
oklch(26.9% 0.064 16.5)
#A0273A 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) | #49463A | 0.172 |
| Deuteranopia (no green cones) | #675F37 | 0.159 |
| Tritanopia (no blue cones) | #B0002F | 0.037 |
| Achromatopsia (no color) | #565656 | 0.157 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A0273A
#A0273A
oklch(47.2% 0.156 17.1)
- #00696B
#00696B
oklch(47.2% 0.08 197.1)
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 #A0273A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brown #A52A2A ΔE 0.025
- Rouge #AB1239 ΔE 0.027
- Auburn #9B2226 ΔE 0.027
- Cranberry #9E003A ΔE 0.037
- Brick #A03623 ΔE 0.044
- Firebrick #B22222 ΔE 0.045
- Carmine #9D0216 ΔE 0.045
- Rufous #AE2012 ΔE 0.047
Use #A0273A 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.