#AD4539
Closest named color: Dull Red (#BB3F3F). oklch(52.8% 0.139 29.2), rgb(173, 69, 57).
Aa
White text reads best on this color (5.69:1).
About this color
#AD4539 is a medium-dark, moderately saturated red. In OKLCH its lightness is 53%, its chroma 0.139 and its hue 29°. Its hue sits on the warm side of the wheel. The nearest named color is Dull Red (#BB3F3F), ΔE 0.030 away. White text reads best on it, at 5.69:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.139) |
| Temperature | warm |
| Nearest name | Dull Red (#BB3F3F) |
| Black text | 3.68:1 |
| White text | 5.69:1 |
Values
| HEX | #AD4539 |
| RGB | rgb(173, 69, 57) |
| HSL | hsl(6, 50%, 45%) |
| OKLCH | oklch(52.8% 0.139 29.2) |
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 #AD4539 | 5.69:1 | AA | Lc -83.1 | Fine for body text |
| Black text on #AD4539 | 3.68:1 | AA large text | Lc 26.3 | Dividers and decoration only |
| #AD4539 text on white | 5.69:1 | AA | Lc 77.8 | Fine for body text |
| #AD4539 text on black | 3.68:1 | AA large text | Lc -24.0 | 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 600.
-
Step 50
50
#FBF3F2
oklch(97% 0.009 26)
-
Step 100
100
#F6E6E3
oklch(93.7% 0.018 30.3)
-
Step 200
200
#EFD1CC
oklch(88.4% 0.034 29)
-
Step 300
300
#E6B2AA
oklch(80.9% 0.062 28.5)
-
Step 400
400
#D8887C
oklch(70.7% 0.101 29.1)
-
Step 500
500
#CB685B
oklch(63% 0.128 28.9)
-
Step 600
600 (this color)
#AD4539
oklch(52.8% 0.139 29.2)
-
Step 700
700
#9D3E33
oklch(49.2% 0.129 29.2)
-
Step 800
800
#7F342B
oklch(42.7% 0.106 29.1)
-
Step 900
900
#672E27
oklch(37.8% 0.084 28.8)
-
Step 950
950
#3C1B17
oklch(26.8% 0.053 28.3)
#AD4539 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) | #605837 | 0.145 |
| Deuteranopia (no green cones) | #7A6F36 | 0.134 |
| Tritanopia (no blue cones) | #BE2F43 | 0.050 |
| Achromatopsia (no color) | #676767 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AD4539
#AD4539
oklch(52.8% 0.139 29.2)
- #007988
#007988
oklch(52.8% 0.091 209.8)
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 #AD4539, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Red #BB3F3F ΔE 0.030
- Dusty Red #B9484E ΔE 0.036
- Sienna #A0522D ΔE 0.042
- Sinopia #BB3E03 ΔE 0.042
- Rusty Red #AF2F0D ΔE 0.043
- Light Maroon #A24857 ΔE 0.044
- Brick #A03623 ΔE 0.045
- Burnt Umber #A0450E ΔE 0.047
Use #AD4539 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.