#A3153B
Closest named color: Rouge (#AB1239). oklch(46.4% 0.173 13.8), rgb(163, 21, 59).
Aa
White text reads best on this color (7.69:1).
About this color
#A3153B is a medium-dark, vivid red. In OKLCH its lightness is 46%, its chroma 0.173 and its hue 14°. Its hue sits on the warm side of the wheel. The nearest named color is Rouge (#AB1239), ΔE 0.017 away. White text reads best on it, at 7.69:1.
| Hue family | Reds |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.173) |
| Temperature | warm |
| Nearest name | Rouge (#AB1239) |
| Black text | 2.72:1 |
| White text | 7.69:1 |
Values
| HEX | #A3153B |
| RGB | rgb(163, 21, 59) |
| HSL | hsl(344, 77%, 36%) |
| OKLCH | oklch(46.4% 0.173 13.8) |
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 #A3153B | 7.69:1 | AAA | Lc -89.8 | Fine for body text |
| Black text on #A3153B | 2.72:1 | Fails | Lc 19.1 | Dividers and decoration only |
| #A3153B text on white | 7.69:1 | AAA | Lc 84.9 | Fine for body text |
| #A3153B text on black | 2.72:1 | Fails | Lc -17.1 | 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
#FDF3F3
oklch(97.2% 0.011 17.3)
-
Step 100
100
#FAE4E5
oklch(93.7% 0.024 14.4)
-
Step 200
200
#F6CDD0
oklch(88.4% 0.046 13.1)
-
Step 300
300
#F2ABB0
oklch(81% 0.084 14.4)
-
Step 400
400
#E77B87
oklch(70.7% 0.133 14.1)
-
Step 500
500
#DD546A
oklch(63.2% 0.171 13.8)
-
Step 600
600
#C83152
oklch(55.6% 0.187 13.6)
-
Step 700
700 (this color)
#A3153B
oklch(46.4% 0.173 13.8)
-
Step 800
800
#8C1F37
oklch(42.7% 0.144 13.6)
-
Step 900
900
#71212F
oklch(37.8% 0.112 14.1)
-
Step 950
950
#42151C
oklch(27% 0.07 13.7)
#A3153B 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) | #42413B | 0.195 |
| Deuteranopia (no green cones) | #655D37 | 0.177 |
| Tritanopia (no blue cones) | #B30027 | 0.039 |
| Achromatopsia (no color) | #535353 | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A3153B
#A3153B
oklch(46.4% 0.173 13.8)
- #006766
#006766
oklch(46.5% 0.08 193.6)
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 #A3153B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rouge #AB1239 ΔE 0.017
- Cranberry #9E003A ΔE 0.020
- Raspberry #B00149 ΔE 0.034
- Auburn #9B2226 ΔE 0.036
- Berry #990F4B ΔE 0.037
- Purple Red #990147 ΔE 0.038
- Brown #A52A2A ΔE 0.040
- Carmine #9D0216 ΔE 0.043
Use #A3153B 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.