#AC3F02
Closest named color: Burnt Umber (#A0450E). oklch(51.4% 0.154 41.8), rgb(172, 63, 2).
Aa
White text reads best on this color (6.05:1).
About this color
#AC3F02 is a medium-dark, vivid orange. In OKLCH its lightness is 51%, its chroma 0.154 and its hue 42°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Umber (#A0450E), ΔE 0.024 away. White text reads best on it, at 6.05:1.
| Hue family | Oranges |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.154) |
| Temperature | warm |
| Nearest name | Burnt Umber (#A0450E) |
| Black text | 3.46:1 |
| White text | 6.05:1 |
Values
| HEX | #AC3F02 |
| RGB | rgb(172, 63, 2) |
| HSL | hsl(22, 98%, 34%) |
| OKLCH | oklch(51.4% 0.154 41.8) |
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 #AC3F02 | 6.05:1 | AA | Lc -84.5 | Fine for body text |
| Black text on #AC3F02 | 3.46:1 | AA large text | Lc 24.8 | Dividers and decoration only |
| #AC3F02 text on white | 6.05:1 | AA | Lc 79.3 | Fine for body text |
| #AC3F02 text on black | 3.46:1 | AA large text | Lc -22.5 | 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
#EBB19B
oklch(80.8% 0.075 41.7)
-
Step 400
400
#DF8663
oklch(70.7% 0.12 42)
-
Step 500
500
#D36436
oklch(63% 0.153 41.8)
-
Step 600
600
#BF4705
oklch(55.6% 0.167 41.6)
-
Step 700
700 (this color)
#AC3F02
oklch(51.4% 0.154 41.8)
-
Step 800
800
#852F02
oklch(42.6% 0.128 41.7)
-
Step 900
900
#6B2B0F
oklch(37.6% 0.099 41.8)
-
Step 950
950
#3F1A0B
oklch(26.9% 0.063 41.6)
#AC3F02 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 | 0.150 |
| Deuteranopia (no green cones) | #7A6C00 | 0.136 |
| Tritanopia (no blue cones) | #BE1F36 | 0.074 |
| Achromatopsia (no color) | #626262 | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #AC3F02
#AC3F02
oklch(51.4% 0.154 41.8)
- #00738E
#00738E
oklch(51.5% 0.095 221.6)
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 #AC3F02, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Umber #A0450E ΔE 0.024
- Russet #A13905 ΔE 0.027
- Rusty Red #AF2F0D ΔE 0.029
- Sinopia #BB3E03 ΔE 0.030
- Cinnamon #AC4F06 ΔE 0.033
- Brick #A03623 ΔE 0.040
- Rust Red #AA2704 ΔE 0.041
- Sienna #A0522D ΔE 0.042
Use #AC3F02 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.