#AD002A
Closest named color: Rouge (#AB1239). oklch(47.3% 0.19 20.2), rgb(173, 0, 42).
Aa
White text reads best on this color (7.47:1).
About this color
#AD002A is a medium-dark, vivid red. In OKLCH its lightness is 47%, its chroma 0.190 and its hue 20°. 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 7.47:1.
| Hue family | Reds |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.190) |
| Temperature | warm |
| Nearest name | Rouge (#AB1239) |
| Black text | 2.81:1 |
| White text | 7.47:1 |
Values
| HEX | #AD002A |
| RGB | rgb(173, 0, 42) |
| HSL | hsl(345, 100%, 34%) |
| OKLCH | oklch(47.3% 0.19 20.2) |
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 #AD002A | 7.47:1 | AAA | Lc -88.4 | Fine for body text |
| Black text on #AD002A | 2.81:1 | Fails | Lc 20.7 | Dividers and decoration only |
| #AD002A text on white | 7.47:1 | AAA | Lc 83.4 | Fine for body text |
| #AD002A text on black | 2.81:1 | Fails | Lc -18.6 | 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
#FEF2F2
oklch(97.1% 0.013 17.4)
-
Step 100
100
#FBE3E2
oklch(93.5% 0.026 20.5)
-
Step 200
200
#F9CCCB
oklch(88.4% 0.051 19.7)
-
Step 300
300
#F6A9A8
oklch(80.9% 0.091 20.1)
-
Step 400
400
#EE7779
oklch(70.7% 0.147 20.5)
-
Step 500
500
#E54C57
oklch(63.1% 0.189 20.4)
-
Step 600
600
#D0233D
oklch(55.6% 0.204 20.2)
-
Step 700
700 (this color)
#AD002A
oklch(47.3% 0.19 20.2)
-
Step 800
800
#921528
oklch(42.8% 0.157 20.2)
-
Step 900
900
#751C25
oklch(37.7% 0.122 20)
-
Step 950
950
#451216
oklch(27% 0.078 19.6)
#AD002A 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) | #453F2A | 0.211 |
| Deuteranopia (no green cones) | #6B6024 | 0.192 |
| Tritanopia (no blue cones) | #BF0018 | 0.042 |
| Achromatopsia (no color) | #555555 | 0.191 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AD002A
#AD002A
oklch(47.3% 0.19 20.2)
- #00696E
#00696E
oklch(47.4% 0.081 200.5)
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 #AD002A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rouge #AB1239 ΔE 0.018
- Firebrick #B22222 ΔE 0.034
- Brown #A52A2A ΔE 0.035
- Rufous #AE2012 ΔE 0.036
- Carmine #9D0216 ΔE 0.040
- Auburn #9B2226 ΔE 0.040
- Scarlet #BE0119 ΔE 0.040
- Cranberry #9E003A ΔE 0.040
Use #AD002A 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.