#AD2C3B
Closest named color: Brown (#A52A2A). oklch(50% 0.165 19.4), rgb(173, 44, 59).
Aa
White text reads best on this color (6.56:1).
About this color
#AD2C3B is a medium-dark, vivid red. In OKLCH its lightness is 50%, its chroma 0.165 and its hue 19°. Its hue sits on the warm side of the wheel. The nearest named color is Brown (#A52A2A), ΔE 0.026 away. White text reads best on it, at 6.56:1.
| Hue family | Reds |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.165) |
| Temperature | warm |
| Nearest name | Brown (#A52A2A) |
| Black text | 3.20:1 |
| White text | 6.56:1 |
Values
| HEX | #AD2C3B |
| RGB | rgb(173, 44, 59) |
| HSL | hsl(353, 59%, 43%) |
| OKLCH | oklch(50% 0.165 19.4) |
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 #AD2C3B | 6.56:1 | AA | Lc -86.4 | Fine for body text |
| Black text on #AD2C3B | 3.20:1 | AA large text | Lc 22.8 | Dividers and decoration only |
| #AD2C3B text on white | 6.56:1 | AA | Lc 81.2 | Fine for body text |
| #AD2C3B text on black | 3.20:1 | AA large text | Lc -20.6 | 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
#FDF3F2
oklch(97.2% 0.011 24.3)
-
Step 100
100
#F9E4E4
oklch(93.6% 0.023 17.6)
-
Step 200
200
#F5CECD
oklch(88.4% 0.044 19.8)
-
Step 300
300
#F0ACAC
oklch(80.9% 0.08 19)
-
Step 400
400
#E57E80
oklch(70.7% 0.127 19.6)
-
Step 500
500
#DA5860
oklch(63% 0.163 19.4)
-
Step 600
600
#C53847
oklch(55.5% 0.177 19.4)
-
Step 700
700 (this color)
#AD2C3B
oklch(50% 0.165 19.4)
-
Step 800
800
#8A242F
oklch(42.6% 0.136 19.4)
-
Step 900
900
#6F242A
oklch(37.7% 0.106 19.2)
-
Step 950
950
#411619
oklch(26.9% 0.067 18.6)
#AD2C3B 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) | #504C3B | 0.181 |
| Deuteranopia (no green cones) | #716737 | 0.165 |
| Tritanopia (no blue cones) | #BE0033 | 0.040 |
| Achromatopsia (no color) | #5D5D5D | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AD2C3B
#AD2C3B
oklch(50% 0.165 19.4)
- #007176
#007176
oklch(49.9% 0.085 200.2)
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 #AD2C3B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Brown #A52A2A ΔE 0.026
- Firebrick #B22222 ΔE 0.027
- Rouge #AB1239 ΔE 0.030
- Rufous #AE2012 ΔE 0.038
- Rose Red #BE013C ΔE 0.041
- Lipstick Red #C0022F ΔE 0.042
- Brick #A03623 ΔE 0.043
- Rusty Red #AF2F0D ΔE 0.044
Use #AD2C3B 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.