#AD3E23
Closest named color: Rusty Red (#AF2F0D). oklch(51.6% 0.151 34.8), rgb(173, 62, 35).
Aa
White text reads best on this color (6.01:1).
About this color
#AD3E23 is a medium-dark, vivid red. In OKLCH its lightness is 52%, its chroma 0.151 and its hue 35°. Its hue sits on the warm side of the wheel. The nearest named color is Rusty Red (#AF2F0D), ΔE 0.024 away. White text reads best on it, at 6.01:1.
| Hue family | Reds |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.151) |
| Temperature | warm |
| Nearest name | Rusty Red (#AF2F0D) |
| Black text | 3.49:1 |
| White text | 6.01:1 |
Values
| HEX | #AD3E23 |
| RGB | rgb(173, 62, 35) |
| HSL | hsl(12, 66%, 41%) |
| OKLCH | oklch(51.6% 0.151 34.8) |
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 #AD3E23 | 6.01:1 | AA | Lc -84.4 | Fine for body text |
| Black text on #AD3E23 | 3.49:1 | AA large text | Lc 24.9 | Dividers and decoration only |
| #AD3E23 text on white | 6.01:1 | AA | Lc 79.2 | Fine for body text |
| #AD3E23 text on black | 3.49:1 | AA large text | Lc -22.6 | 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
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F8E5E1
oklch(93.6% 0.022 31.8)
-
Step 200
200
#F3D0C7
oklch(88.5% 0.041 34.8)
-
Step 300
300
#ECB0A1
oklch(80.9% 0.074 34.5)
-
Step 400
400
#DF856E
oklch(70.7% 0.116 35.2)
-
Step 500
500
#D46347
oklch(63.2% 0.149 35.1)
-
Step 600
600
#BF4628
oklch(55.6% 0.162 35)
-
Step 700
700 (this color)
#AD3E23
oklch(51.6% 0.151 34.8)
-
Step 800
800
#862E19
oklch(42.8% 0.125 34.6)
-
Step 900
900
#6C2A1B
oklch(37.7% 0.098 34.2)
-
Step 950
950
#3F1A10
oklch(27% 0.061 36.1)
#AD3E23 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) | #5E531F | 0.153 |
| Deuteranopia (no green cones) | #796C1F | 0.140 |
| Tritanopia (no blue cones) | #BF2039 | 0.061 |
| Achromatopsia (no color) | #636363 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AD3E23
#AD3E23
oklch(51.6% 0.151 34.8)
- #007588
#007588
oklch(51.7% 0.091 214.1)
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 #AD3E23, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rusty Red #AF2F0D ΔE 0.024
- Sinopia #BB3E03 ΔE 0.032
- Russet #A13905 ΔE 0.033
- Brick #A03623 ΔE 0.033
- Burnt Umber #A0450E ΔE 0.034
- Rust Red #AA2704 ΔE 0.038
- Dull Red #BB3F3F ΔE 0.041
- Firebrick #B22222 ΔE 0.042
Use #AD3E23 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.