#AA4000
Closest named color: Burnt Umber (#A0450E). oklch(51.2% 0.152 42.9), rgb(170, 64, 0).
Aa
White text reads best on this color (6.10:1).
About this color
#AA4000 is a medium-dark, vivid orange. In OKLCH its lightness is 51%, its chroma 0.152 and its hue 43°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Umber (#A0450E), ΔE 0.020 away. White text reads best on it, at 6.10:1.
| Hue family | Oranges |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.152) |
| Temperature | warm |
| Nearest name | Burnt Umber (#A0450E) |
| Black text | 3.44:1 |
| White text | 6.10:1 |
Values
| HEX | #AA4000 |
| RGB | rgb(170, 64, 0) |
| HSL | hsl(23, 100%, 33%) |
| OKLCH | oklch(51.2% 0.152 42.9) |
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 #AA4000 | 6.10:1 | AA | Lc -84.7 | Fine for body text |
| Black text on #AA4000 | 3.44:1 | AA large text | Lc 24.5 | Dividers and decoration only |
| #AA4000 text on white | 6.10:1 | AA | Lc 79.5 | Fine for body text |
| #AA4000 text on black | 3.44:1 | AA large text | Lc -22.3 | 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
#FCF3F0
oklch(97% 0.011 39.4)
-
Step 100
100
#F7E6DF
oklch(93.7% 0.021 43.9)
-
Step 200
200
#F2D1C4
oklch(88.5% 0.041 42.7)
-
Step 300
300
#EAB29B
oklch(80.9% 0.073 43.4)
-
Step 400
400
#DE8763
oklch(70.7% 0.118 43)
-
Step 500
500
#D26636
oklch(63.2% 0.15 43)
-
Step 600
600
#BD4904
oklch(55.5% 0.163 42.9)
-
Step 700
700 (this color)
#AA4000
oklch(51.2% 0.152 42.9)
-
Step 800
800
#843101
oklch(42.7% 0.125 43.3)
-
Step 900
900
#6B2C0F
oklch(37.7% 0.099 42.6)
-
Step 950
950
#3F1B0B
oklch(27.1% 0.062 43.2)
#AA4000 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) | #5F5300 | 0.146 |
| Deuteranopia (no green cones) | #796B00 | 0.132 |
| Tritanopia (no blue cones) | #BC2236 | 0.074 |
| Achromatopsia (no color) | #626262 | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AA4000
#AA4000
oklch(51.2% 0.152 42.9)
- #00728E
#00728E
oklch(51.2% 0.095 222.7)
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 #AA4000, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Umber #A0450E ΔE 0.020
- Russet #A13905 ΔE 0.025
- Rusty Red #AF2F0D ΔE 0.031
- Cinnamon #AC4F06 ΔE 0.032
- Sinopia #BB3E03 ΔE 0.034
- Brick #A03623 ΔE 0.039
- Sienna #A0522D ΔE 0.040
- Rust Red #AA2704 ΔE 0.042
Use #AA4000 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.