#A42238
Closest named color: Rouge (#AB1239). oklch(47.4% 0.165 17.5), rgb(164, 34, 56).
Aa
White text reads best on this color (7.33:1).
About this color
#A42238 is a medium-dark, vivid red. In OKLCH its lightness is 47%, its chroma 0.165 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 7.33:1.
| Hue family | Reds |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.165) |
| Temperature | warm |
| Nearest name | Rouge (#AB1239) |
| Black text | 2.86:1 |
| White text | 7.33:1 |
Values
| HEX | #A42238 |
| RGB | rgb(164, 34, 56) |
| HSL | hsl(350, 66%, 39%) |
| OKLCH | oklch(47.4% 0.165 17.5) |
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 #A42238 | 7.33:1 | AAA | Lc -89.0 | Fine for body text |
| Black text on #A42238 | 2.86:1 | Fails | Lc 20.0 | Dividers and decoration only |
| #A42238 text on white | 7.33:1 | AAA | Lc 84.0 | Fine for body text |
| #A42238 text on black | 2.86:1 | Fails | Lc -17.9 | 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
#F9E4E4
oklch(93.6% 0.023 17.6)
-
Step 200
200
#F5CECE
oklch(88.5% 0.044 18)
-
Step 300
300
#F0ACAE
oklch(80.9% 0.08 17)
-
Step 400
400
#E57E83
oklch(70.8% 0.127 17.8)
-
Step 500
500
#DA5864
oklch(63.1% 0.163 17.6)
-
Step 600
600
#C5384B
oklch(55.6% 0.177 17.7)
-
Step 700
700 (this color)
#A42238
oklch(47.4% 0.165 17.5)
-
Step 800
800
#8A2432
oklch(42.7% 0.136 17.6)
-
Step 900
900
#6F242C
oklch(37.7% 0.106 17.6)
-
Step 950
950
#41161A
oklch(26.9% 0.067 17.2)
#A42238 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) | #484538 | 0.183 |
| Deuteranopia (no green cones) | #696034 | 0.167 |
| Tritanopia (no blue cones) | #B4002C | 0.035 |
| Achromatopsia (no color) | #565656 | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A42238
#A42238
oklch(47.4% 0.165 17.5)
- #006A6C
#006A6C
oklch(47.5% 0.081 197.1)
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 #A42238, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rouge #AB1239 ΔE 0.018
- Brown #A52A2A ΔE 0.024
- Auburn #9B2226 ΔE 0.029
- Cranberry #9E003A ΔE 0.036
- Firebrick #B22222 ΔE 0.039
- Raspberry #B00149 ΔE 0.042
- Rufous #AE2012 ΔE 0.043
- Carmine #9D0216 ΔE 0.044
Use #A42238 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.