#AD4523
Closest named color: Sinopia (#BB3E03). oklch(52.5% 0.144 37.9), rgb(173, 69, 35).
Aa
White text reads best on this color (5.74:1).
About this color
#AD4523 is a medium-dark, vivid red. In OKLCH its lightness is 53%, its chroma 0.144 and its hue 38°. Its hue sits on the warm side of the wheel. The nearest named color is Sinopia (#BB3E03), ΔE 0.029 away. White text reads best on it, at 5.74:1.
| Hue family | Reds |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.144) |
| Temperature | warm |
| Nearest name | Sinopia (#BB3E03) |
| Black text | 3.65:1 |
| White text | 5.74:1 |
Values
| HEX | #AD4523 |
| RGB | rgb(173, 69, 35) |
| HSL | hsl(15, 66%, 41%) |
| OKLCH | oklch(52.5% 0.144 37.9) |
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 #AD4523 | 5.74:1 | AA | Lc -83.3 | Fine for body text |
| Black text on #AD4523 | 3.65:1 | AA large text | Lc 26.1 | Dividers and decoration only |
| #AD4523 text on white | 5.74:1 | AA | Lc 78.0 | Fine for body text |
| #AD4523 text on black | 3.65:1 | AA large text | Lc -23.8 | 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
#FBF4F1
oklch(97.2% 0.009 44.9)
-
Step 100
100
#F6E6E1
oklch(93.6% 0.019 38.1)
-
Step 200
200
#F0D2C8
oklch(88.6% 0.036 39.3)
-
Step 300
300
#E7B3A3
oklch(81% 0.065 37.8)
-
Step 400
400
#D88971
oklch(70.6% 0.103 37.7)
-
Step 500
500
#CC694B
oklch(63% 0.133 37.6)
-
Step 600
600 (this color)
#AD4523
oklch(52.5% 0.144 37.9)
-
Step 700
700
#9E3F20
oklch(49.2% 0.134 38)
-
Step 800
800
#80341C
oklch(42.7% 0.112 37.8)
-
Step 900
900
#672F1D
oklch(37.7% 0.086 38.4)
-
Step 950
950
#3D1C12
oklch(27.1% 0.055 37.6)
#AD4523 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) | #62571E | 0.144 |
| Deuteranopia (no green cones) | #7C6F1F | 0.132 |
| Tritanopia (no blue cones) | #BE2C3E | 0.063 |
| Achromatopsia (no color) | #666666 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AD4523
#AD4523
oklch(52.5% 0.144 37.9)
- #00778E
#00778E
oklch(52.5% 0.094 217.5)
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 #AD4523, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sinopia #BB3E03 ΔE 0.029
- Burnt Umber #A0450E ΔE 0.030
- Cinnamon #AC4F06 ΔE 0.031
- Sienna #A0522D ΔE 0.033
- Rusty Red #AF2F0D ΔE 0.036
- Russet #A13905 ΔE 0.039
- Burnt Siena #B75203 ΔE 0.043
- Brick #A03623 ΔE 0.044
Use #AD4523 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.