#AD3743
Closest named color: Light Burgundy (#A8415B). oklch(51.2% 0.153 18.7), rgb(173, 55, 67).
Aa
White text reads best on this color (6.16:1).
About this color
#AD3743 is a medium-dark, vivid red. In OKLCH its lightness is 51%, its chroma 0.153 and its hue 19°. Its hue sits on the warm side of the wheel. The nearest named color is Light Burgundy (#A8415B), ΔE 0.034 away. White text reads best on it, at 6.16:1.
| Hue family | Reds |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.153) |
| Temperature | warm |
| Nearest name | Light Burgundy (#A8415B) |
| Black text | 3.40:1 |
| White text | 6.16:1 |
Values
| HEX | #AD3743 |
| RGB | rgb(173, 55, 67) |
| HSL | hsl(354, 52%, 45%) |
| OKLCH | oklch(51.2% 0.153 18.7) |
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 #AD3743 | 6.16:1 | AA | Lc -85.0 | Fine for body text |
| Black text on #AD3743 | 3.40:1 | AA large text | Lc 24.3 | Dividers and decoration only |
| #AD3743 text on white | 6.16:1 | AA | Lc 79.8 | Fine for body text |
| #AD3743 text on black | 3.40:1 | AA large text | Lc -22.0 | 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
#FCF3F3
oklch(97.1% 0.01 17.3)
-
Step 100
100
#F8E5E4
oklch(93.7% 0.021 21.2)
-
Step 200
200
#F3CFCF
oklch(88.5% 0.041 17.9)
-
Step 300
300
#EDAEAE
oklch(80.9% 0.074 18.8)
-
Step 400
400
#E18184
oklch(70.8% 0.119 18.5)
-
Step 500
500
#D55D65
oklch(63% 0.151 18.5)
-
Step 600
600
#C03F4C
oklch(55.5% 0.164 18.6)
-
Step 700
700 (this color)
#AD3743
oklch(51.2% 0.153 18.7)
-
Step 800
800
#872933
oklch(42.7% 0.128 18.4)
-
Step 900
900
#6C272C
oklch(37.6% 0.098 18.9)
-
Step 950
950
#40181A
oklch(27.1% 0.063 19.2)
#AD3743 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) | #565243 | 0.167 |
| Deuteranopia (no green cones) | #746A40 | 0.153 |
| Tritanopia (no blue cones) | #BD1B3C | 0.040 |
| Achromatopsia (no color) | #616161 | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AD3743
#AD3743
oklch(51.2% 0.153 18.7)
- #007679
#007679
oklch(51.3% 0.087 197.9)
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 #AD3743, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Burgundy #A8415B ΔE 0.034
- Dull Red #BB3F3F ΔE 0.036
- Brown #A52A2A ΔE 0.038
- Light Maroon #A24857 ΔE 0.038
- Firebrick #B22222 ΔE 0.039
- Dusty Red #B9484E ΔE 0.043
- Dark Rose #B5485D ΔE 0.045
- Rouge #AB1239 ΔE 0.046
Use #AD3743 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.