#AC661E
Closest named color: Umber (#B26400). oklch(57.7% 0.121 60.9), rgb(172, 102, 30).
Aa
Black text reads best on this color (4.67:1).
About this color
#AC661E is a medium-dark, moderately saturated brown. In OKLCH its lightness is 58%, its chroma 0.121 and its hue 61°. Its hue sits on the warm side of the wheel. The nearest named color is Umber (#B26400), ΔE 0.014 away. Black text reads best on it, at 4.67:1.
| Hue family | Browns |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.121) |
| Temperature | warm |
| Nearest name | Umber (#B26400) |
| Black text | 4.67:1 |
| White text | 4.49:1 |
Values
| HEX | #AC661E |
| RGB | rgb(172, 102, 30) |
| HSL | hsl(30, 70%, 40%) |
| OKLCH | oklch(57.7% 0.121 60.9) |
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 #AC661E | 4.49:1 | AA large text | Lc -76.3 | Fine for body text |
| Black text on #AC661E | 4.67:1 | AA | Lc 33.2 | Non-text elements, placeholder text |
| #AC661E text on white | 4.49:1 | AA large text | Lc 70.8 | Content text, not long reading |
| #AC661E text on black | 4.67:1 | AA | Lc -30.8 | 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
#F9F4F1
oklch(97% 0.007 53.4)
-
Step 100
100
#F2E8E0
oklch(93.7% 0.015 61.3)
-
Step 200
200
#E9D5C5
oklch(88.5% 0.031 61.1)
-
Step 300
300
#DBB99D
oklch(80.8% 0.055 61.4)
-
Step 400
400
#C99467
oklch(70.7% 0.088 61)
-
Step 500
500
#BA783C
oklch(63.1% 0.112 60.7)
-
Step 600
600 (this color)
#AC661E
oklch(57.7% 0.121 60.9)
-
Step 700
700
#8D4F03
oklch(49.1% 0.112 61.3)
-
Step 800
800
#73410A
oklch(42.7% 0.094 61.1)
-
Step 900
900
#5D3713
oklch(37.6% 0.073 60.5)
-
Step 950
950
#37210D
oklch(27.1% 0.046 61)
#AC661E 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) | #7C6D11 | 0.087 |
| Deuteranopia (no green cones) | #8C7D1F | 0.078 |
| Tritanopia (no blue cones) | #BC5658 | 0.087 |
| Achromatopsia (no color) | #777777 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC661E
#AC661E
oklch(57.7% 0.121 60.9)
- #2281BA
#2281BA
oklch(57.7% 0.121 240.9)
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 #AC661E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Umber #B26400 ΔE 0.014
- Orangey Brown #B16002 ΔE 0.016
- Copper #B66325 ΔE 0.021
- Raw Umber #A75E09 ΔE 0.023
- Brown Orange #B96902 ΔE 0.027
- Caramel #AF6F09 ΔE 0.028
- Orange Brown #BE6400 ΔE 0.033
- Earth #A2653E ΔE 0.033
Use #AC661E 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.