#AD2C10
Closest named color: Rusty Red (#AF2F0D). oklch(49.5% 0.17 33.3), rgb(173, 44, 16).
Aa
White text reads best on this color (6.67:1).
About this color
#AD2C10 is a medium-dark, vivid red. In OKLCH its lightness is 49%, its chroma 0.170 and its hue 33°. Its hue sits on the warm side of the wheel. The nearest named color is Rusty Red (#AF2F0D), ΔE 0.007 away. White text reads best on it, at 6.67:1.
| Hue family | Reds |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.170) |
| Temperature | warm |
| Nearest name | Rusty Red (#AF2F0D) |
| Black text | 3.14:1 |
| White text | 6.67:1 |
Values
| HEX | #AD2C10 |
| RGB | rgb(173, 44, 16) |
| HSL | hsl(11, 83%, 37%) |
| OKLCH | oklch(49.5% 0.17 33.3) |
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 #AD2C10 | 6.67:1 | AA | Lc -86.7 | Fine for body text |
| Black text on #AD2C10 | 3.14:1 | AA large text | Lc 22.5 | Dividers and decoration only |
| #AD2C10 text on white | 6.67:1 | AA | Lc 81.6 | Fine for body text |
| #AD2C10 text on black | 3.14:1 | AA large text | Lc -20.3 | 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
#FDF3F1
oklch(97.1% 0.011 31.1)
-
Step 100
100
#F9E5E0
oklch(93.7% 0.023 34.3)
-
Step 200
200
#F6CFC6
oklch(88.5% 0.046 33.2)
-
Step 300
300
#F1AE9E
oklch(81% 0.082 33.9)
-
Step 400
400
#E68069
oklch(70.7% 0.131 33.7)
-
Step 500
500
#DC5B40
oklch(63.2% 0.168 33.5)
-
Step 600
600
#C73A1D
oklch(55.5% 0.182 33.3)
-
Step 700
700 (this color)
#AD2C10
oklch(49.5% 0.17 33.3)
-
Step 800
800
#8B2611
oklch(42.6% 0.14 33.3)
-
Step 900
900
#702516
oklch(37.6% 0.11 33.2)
-
Step 950
950
#42170E
oklch(27% 0.069 33.5)
#AD2C10 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) | #544A09 | 0.179 |
| Deuteranopia (no green cones) | #746604 | 0.160 |
| Tritanopia (no blue cones) | #BF0028 | 0.052 |
| Achromatopsia (no color) | #5C5C5C | 0.171 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AD2C10
#AD2C10
oklch(49.5% 0.17 33.3)
- #006E7F
#006E7F
oklch(49.5% 0.087 213.1)
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 #AD2C10, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rusty Red #AF2F0D ΔE 0.007
- Rust Red #AA2704 ΔE 0.011
- Rufous #AE2012 ΔE 0.016
- Firebrick #B22222 ΔE 0.022
- Brick #A03623 ΔE 0.028
- Brown #A52A2A ΔE 0.028
- Russet #A13905 ΔE 0.031
- Burnt Red #9F2305 ΔE 0.035
Use #AD2C10 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.