#A64104
Closest named color: Burnt Umber (#A0450E). oklch(50.7% 0.146 43.6), rgb(166, 65, 4).
Aa
White text reads best on this color (6.21:1).
About this color
#A64104 is a medium-dark, vivid orange. In OKLCH its lightness is 51%, its chroma 0.146 and its hue 44°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Umber (#A0450E), ΔE 0.013 away. White text reads best on it, at 6.21:1.
| Hue family | Oranges |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.146) |
| Temperature | warm |
| Nearest name | Burnt Umber (#A0450E) |
| Black text | 3.37:1 |
| White text | 6.21:1 |
Values
| HEX | #A64104 |
| RGB | rgb(166, 65, 4) |
| HSL | hsl(23, 95%, 33%) |
| OKLCH | oklch(50.7% 0.146 43.6) |
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 #A64104 | 6.21:1 | AA | Lc -85.3 | Fine for body text |
| Black text on #A64104 | 3.37:1 | AA large text | Lc 23.9 | Dividers and decoration only |
| #A64104 text on white | 6.21:1 | AA | Lc 80.1 | Fine for body text |
| #A64104 text on black | 3.37:1 | AA large text | Lc -21.7 | 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 700.
-
Step 50
50
#FBF4F0
oklch(97.1% 0.009 52.1)
-
Step 100
100
#F7E6DF
oklch(93.7% 0.021 43.9)
-
Step 200
200
#F1D1C5
oklch(88.4% 0.04 41.7)
-
Step 300
300
#E9B39C
oklch(81% 0.071 44.2)
-
Step 400
400
#DB8865
oklch(70.6% 0.113 43.4)
-
Step 500
500
#CF6839
oklch(63.1% 0.144 43.7)
-
Step 600
600
#BB4C0D
oklch(55.6% 0.157 43.6)
-
Step 700
700 (this color)
#A64104
oklch(50.7% 0.146 43.6)
-
Step 800
800
#833305
oklch(42.8% 0.121 43.8)
-
Step 900
900
#692D11
oklch(37.6% 0.095 43.2)
-
Step 950
950
#3E1B0C
oklch(27% 0.06 42.8)
#A64104 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) | #5F5200 | 0.138 |
| Deuteranopia (no green cones) | #776900 | 0.126 |
| Tritanopia (no blue cones) | #B72637 | 0.073 |
| Achromatopsia (no color) | #616161 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A64104
#A64104
oklch(50.7% 0.146 43.6)
- #00708D
#00708D
oklch(50.6% 0.095 223.9)
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 #A64104, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Umber #A0450E ΔE 0.013
- Russet #A13905 ΔE 0.020
- Cinnamon #AC4F06 ΔE 0.034
- Rusty Red #AF2F0D ΔE 0.035
- Brick #A03623 ΔE 0.036
- Sienna #A0522D ΔE 0.037
- Warm Brown #964E02 ΔE 0.040
- Sinopia #BB3E03 ΔE 0.041
Use #A64104 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.