#AD591C
Closest named color: Raw Umber (#A75E09). oklch(55.5% 0.13 51.5), rgb(173, 89, 28).
Aa
White text reads best on this color (4.97:1).
About this color
#AD591C is a medium-dark, moderately saturated brown. In OKLCH its lightness is 56%, its chroma 0.130 and its hue 51°. Its hue sits on the warm side of the wheel. The nearest named color is Raw Umber (#A75E09), ΔE 0.020 away. White text reads best on it, at 4.97:1.
| Hue family | Browns |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.130) |
| Temperature | warm |
| Nearest name | Raw Umber (#A75E09) |
| Black text | 4.22:1 |
| White text | 4.97:1 |
Values
| HEX | #AD591C |
| RGB | rgb(173, 89, 28) |
| HSL | hsl(25, 72%, 39%) |
| OKLCH | oklch(55.5% 0.13 51.5) |
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 #AD591C | 4.97:1 | AA | Lc -79.3 | Fine for body text |
| Black text on #AD591C | 4.22:1 | AA large text | Lc 30.2 | Non-text elements, placeholder text |
| #AD591C text on white | 4.97:1 | AA | Lc 73.9 | Content text, not long reading |
| #AD591C text on black | 4.22:1 | AA large text | Lc -27.8 | 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
#FAF4F1
oklch(97.1% 0.008 48.7)
-
Step 100
100
#F4E7E0
oklch(93.6% 0.017 50.4)
-
Step 200
200
#ECD4C6
oklch(88.6% 0.033 52.3)
-
Step 300
300
#E0B79F
oklch(81% 0.058 52)
-
Step 400
400
#D0906A
oklch(70.8% 0.094 51.4)
-
Step 500
500
#C27240
oklch(63% 0.12 51)
-
Step 600
600 (this color)
#AD591C
oklch(55.5% 0.13 51.5)
-
Step 700
700
#95490D
oklch(49.2% 0.121 51.6)
-
Step 800
800
#793C10
oklch(42.7% 0.101 51.3)
-
Step 900
900
#623416
oklch(37.8% 0.079 51.2)
-
Step 950
950
#391F0E
oklch(27% 0.049 52.4)
#AD591C 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) | #716411 | 0.112 |
| Deuteranopia (no green cones) | #86771A | 0.100 |
| Tritanopia (no blue cones) | #BE464D | 0.080 |
| Achromatopsia (no color) | #707070 | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AD591C
#AD591C
oklch(55.5% 0.13 51.5)
- #007EA9
#007EA9
oklch(55.6% 0.112 231.2)
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 #AD591C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Raw Umber #A75E09 ΔE 0.020
- Burnt Siena #B75203 ΔE 0.022
- Cinnamon #AC4F06 ΔE 0.022
- Orangey Brown #B16002 ΔE 0.024
- Copper #B66325 ΔE 0.030
- Umber #B26400 ΔE 0.033
- Sienna #A0522D ΔE 0.036
- Earth #A2653E ΔE 0.036
Use #AD591C 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.