#A4002C
Closest named color: Rouge (#AB1239). oklch(45.5% 0.183 18.5), rgb(164, 0, 44).
Aa
White text reads best on this color (8.03:1).
About this color
#A4002C is a medium-dark, vivid red. In OKLCH its lightness is 46%, its chroma 0.183 and its hue 18°. Its hue sits on the warm side of the wheel. The nearest named color is Rouge (#AB1239), ΔE 0.024 away. White text reads best on it, at 8.03:1.
| Hue family | Reds |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.183) |
| Temperature | warm |
| Nearest name | Rouge (#AB1239) |
| Black text | 2.61:1 |
| White text | 8.03:1 |
Values
| HEX | #A4002C |
| RGB | rgb(164, 0, 44) |
| HSL | hsl(344, 100%, 32%) |
| OKLCH | oklch(45.5% 0.183 18.5) |
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 #A4002C | 8.03:1 | AAA | Lc -90.2 | Preferred for body text |
| Black text on #A4002C | 2.61:1 | Fails | Lc 18.7 | Dividers and decoration only |
| #A4002C text on white | 8.03:1 | AAA | Lc 85.3 | Fine for body text |
| #A4002C text on black | 2.61:1 | Fails | Lc -16.7 | 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 800.
-
Step 50
50
#FFF2F2
oklch(97.1% 0.014 17.4)
-
Step 100
100
#FEE2E2
oklch(93.6% 0.031 17.7)
-
Step 200
200
#FECACA
oklch(88.5% 0.059 18.3)
-
Step 300
300
#FEA4A6
oklch(80.9% 0.107 18.2)
-
Step 400
400
#F86D76
oklch(70.6% 0.17 18.6)
-
Step 500
500
#F03853
oklch(63.1% 0.218 18.6)
-
Step 600
600
#D7003C
oklch(55.7% 0.223 18.7)
-
Step 700
700
#B60032
oklch(49.2% 0.197 18.4)
-
Step 800
800 (this color)
#A4002C
oklch(45.5% 0.183 18.5)
-
Step 900
900
#7C0C22
oklch(37.8% 0.142 18.7)
-
Step 950
950
#490C14
oklch(27% 0.09 18.8)
#A4002C 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) | #403C2C | 0.205 |
| Deuteranopia (no green cones) | #655B27 | 0.185 |
| Tritanopia (no blue cones) | #B50018 | 0.042 |
| Achromatopsia (no color) | #505050 | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A4002C
#A4002C
oklch(45.5% 0.183 18.5)
- #006467
#006467
oklch(45.7% 0.078 198.4)
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 #A4002C, closest first.
No curated palette has a color within ΔE 0.04 of #A4002C.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rouge #AB1239 ΔE 0.024
- Cranberry #9E003A ΔE 0.024
- Carmine #9D0216 ΔE 0.027
- Auburn #9B2226 ΔE 0.031
- Brown #A52A2A ΔE 0.040
- Deep Red #9A0200 ΔE 0.042
- Blood Red #980002 ΔE 0.044
- Raspberry #B00149 ΔE 0.046
Use #A4002C 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.