#A31434
Closest named color: Rouge (#AB1239). oklch(46.2% 0.173 16.8), rgb(163, 20, 52).
Aa
White text reads best on this color (7.75:1).
About this color
#A31434 is a medium-dark, vivid red. In OKLCH its lightness is 46%, its chroma 0.173 and its hue 17°. Its hue sits on the warm side of the wheel. The nearest named color is Rouge (#AB1239), ΔE 0.018 away. White text reads best on it, at 7.75:1.
| Hue family | Reds |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.173) |
| Temperature | warm |
| Nearest name | Rouge (#AB1239) |
| Black text | 2.70:1 |
| White text | 7.75:1 |
Values
| HEX | #A31434 |
| RGB | rgb(163, 20, 52) |
| HSL | hsl(347, 78%, 36%) |
| OKLCH | oklch(46.2% 0.173 16.8) |
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 #A31434 | 7.75:1 | AAA | Lc -90.0 | Fine for body text |
| Black text on #A31434 | 2.70:1 | Fails | Lc 18.9 | Dividers and decoration only |
| #A31434 text on white | 7.75:1 | AAA | Lc 85.1 | Fine for body text |
| #A31434 text on black | 2.70:1 | Fails | Lc -16.9 | 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
#FAE4E4
oklch(93.7% 0.024 17.6)
-
Step 200
200
#F7CDCE
oklch(88.5% 0.048 16.5)
-
Step 300
300
#F2ABAD
oklch(80.9% 0.084 17.2)
-
Step 400
400
#E87B82
oklch(70.7% 0.135 17.1)
-
Step 500
500
#DD5463
oklch(63% 0.171 17)
-
Step 600
600
#C9314B
oklch(55.6% 0.187 16.6)
-
Step 700
700 (this color)
#A31434
oklch(46.2% 0.173 16.8)
-
Step 800
800
#8C1F32
oklch(42.6% 0.143 16.4)
-
Step 900
900
#71212C
oklch(37.7% 0.112 16.5)
-
Step 950
950
#43151A
oklch(27.1% 0.071 16.7)
#A31434 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) | #434034 | 0.194 |
| Deuteranopia (no green cones) | #665D30 | 0.176 |
| Tritanopia (no blue cones) | #B30023 | 0.036 |
| Achromatopsia (no color) | #525252 | 0.175 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A31434
#A31434
oklch(46.2% 0.173 16.8)
- #006668
#006668
oklch(46.3% 0.079 197.1)
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 #A31434, closest first.
No curated palette has a color within ΔE 0.04 of #A31434.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rouge #AB1239 ΔE 0.018
- Cranberry #9E003A ΔE 0.023
- Auburn #9B2226 ΔE 0.029
- Brown #A52A2A ΔE 0.034
- Carmine #9D0216 ΔE 0.035
- Raspberry #B00149 ΔE 0.041
- Berry #990F4B ΔE 0.044
- Purple Red #990147 ΔE 0.045
Use #A31434 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.