#AC645E
Closest named color: Clay (#B66A50). oklch(58.3% 0.094 25.4), rgb(172, 100, 94).
Aa
Black text reads best on this color (4.73:1).
About this color
#AC645E is a medium-dark, moderately saturated red. In OKLCH its lightness is 58%, its chroma 0.094 and its hue 25°. Its hue sits on the warm side of the wheel. The nearest named color is Clay (#B66A50), ΔE 0.034 away. Black text reads best on it, at 4.73:1.
| Hue family | Reds |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.094) |
| Temperature | warm |
| Nearest name | Clay (#B66A50) |
| Black text | 4.73:1 |
| White text | 4.43:1 |
Values
| HEX | #AC645E |
| RGB | rgb(172, 100, 94) |
| HSL | hsl(5, 32%, 52%) |
| OKLCH | oklch(58.3% 0.094 25.4) |
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 #AC645E | 4.43:1 | AA large text | Lc -76.0 | Fine for body text |
| Black text on #AC645E | 4.73:1 | AA | Lc 33.6 | Non-text elements, placeholder text |
| #AC645E text on white | 4.43:1 | AA large text | Lc 70.5 | Content text, not long reading |
| #AC645E text on black | 4.73:1 | AA | Lc -31.2 | Non-text elements, placeholder text |
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
#F9F4F3
oklch(97.1% 0.006 31.1)
-
Step 100
100
#F2E7E6
oklch(93.6% 0.012 23.7)
-
Step 200
200
#E8D4D1
oklch(88.5% 0.023 27.8)
-
Step 300
300
#DBB7B3
oklch(81% 0.042 25.5)
-
Step 400
400
#C8918B
oklch(70.8% 0.068 25.9)
-
Step 500
500
#B8756E
oklch(63.1% 0.086 26.2)
-
Step 600
600 (this color)
#AC645E
oklch(58.3% 0.094 25.4)
-
Step 700
700
#8C4C47
oklch(49.2% 0.087 25.4)
-
Step 800
800
#723E3A
oklch(42.7% 0.074 25.2)
-
Step 900
900
#5C3532
oklch(37.6% 0.057 24.8)
-
Step 950
950
#361F1D
oklch(26.9% 0.036 25.2)
#AC645E 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) | #746F5D | 0.097 |
| Deuteranopia (no green cones) | #857D5D | 0.090 |
| Tritanopia (no blue cones) | #BA5A63 | 0.035 |
| Achromatopsia (no color) | #787878 | 0.095 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC645E
#AC645E
oklch(58.3% 0.094 25.4)
- #198B96
#198B96
oklch(58.3% 0.094 205.2)
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 #AC645E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clay #B66A50 ΔE 0.034
- Pinkish Brown #B17261 ΔE 0.037
- Dusky Rose #BA6873 ΔE 0.040
- Earth #A2653E ΔE 0.047
- Reddish Grey #997570 ΔE 0.050
- Adobe #BD6C48 ΔE 0.051
- Mauve #AE7181 ΔE 0.051
- Dusty Red #B9484E ΔE 0.060
Use #AC645E 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.