#AC644F
Closest named color: Clay (#B66A50). oklch(57.9% 0.099 37.1), rgb(172, 100, 79).
Aa
Black text reads best on this color (4.68:1).
About this color
#AC644F is a medium-dark, moderately saturated red. In OKLCH its lightness is 58%, its chroma 0.099 and its hue 37°. Its hue sits on the warm side of the wheel. The nearest named color is Clay (#B66A50), ΔE 0.025 away. Black text reads best on it, at 4.68:1.
| Hue family | Reds |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.099) |
| Temperature | warm |
| Nearest name | Clay (#B66A50) |
| Black text | 4.68:1 |
| White text | 4.47:1 |
Values
| HEX | #AC644F |
| RGB | rgb(172, 100, 79) |
| HSL | hsl(14, 37%, 49%) |
| OKLCH | oklch(57.9% 0.099 37.1) |
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 #AC644F | 4.47:1 | AA large text | Lc -76.3 | Fine for body text |
| Black text on #AC644F | 4.68:1 | AA | Lc 33.3 | Non-text elements, placeholder text |
| #AC644F text on white | 4.47:1 | AA large text | Lc 70.8 | Content text, not long reading |
| #AC644F text on black | 4.68:1 | AA | Lc -30.9 | 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
#F2E7E4
oklch(93.6% 0.013 35.7)
-
Step 200
200
#E9D4CE
oklch(88.5% 0.025 36.5)
-
Step 300
300
#DBB7AD
oklch(80.8% 0.044 36)
-
Step 400
400
#C89181
oklch(70.6% 0.071 36.9)
-
Step 500
500
#B97562
oklch(63% 0.091 36.4)
-
Step 600
600 (this color)
#AC644F
oklch(57.9% 0.099 37.1)
-
Step 700
700
#8D4C3A
oklch(49.1% 0.093 36.4)
-
Step 800
800
#723F30
oklch(42.7% 0.076 37.2)
-
Step 900
900
#5D362B
oklch(37.8% 0.059 36.5)
-
Step 950
950
#362019
oklch(27% 0.037 38.4)
#AC644F 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) | #766E4D | 0.095 |
| Deuteranopia (no green cones) | #877D4E | 0.088 |
| Tritanopia (no blue cones) | #BB585F | 0.048 |
| Achromatopsia (no color) | #777777 | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC644F
#AC644F
oklch(57.9% 0.099 37.1)
- #1688A0
#1688A0
oklch(57.9% 0.099 216.9)
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 #AC644F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clay #B66A50 ΔE 0.025
- Earth #A2653E ΔE 0.030
- Pinkish Brown #B17261 ΔE 0.038
- Adobe #BD6C48 ΔE 0.041
- Copper #B66325 ΔE 0.044
- Clay Brown #B2713D ΔE 0.047
- Mocha #9D7651 ΔE 0.051
- Dusky Rose #BA6873 ΔE 0.056
Use #AC644F 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.