#A83F11
Closest named color: Burnt Umber (#A0450E). oklch(50.8% 0.148 40.4), rgb(168, 63, 17).
Aa
White text reads best on this color (6.20:1).
About this color
#A83F11 is a medium-dark, vivid orange. In OKLCH its lightness is 51%, its chroma 0.148 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Burnt Umber (#A0450E), ΔE 0.019 away. White text reads best on it, at 6.20:1.
| Hue family | Oranges |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.148) |
| Temperature | warm |
| Nearest name | Burnt Umber (#A0450E) |
| Black text | 3.38:1 |
| White text | 6.20:1 |
Values
| HEX | #A83F11 |
| RGB | rgb(168, 63, 17) |
| HSL | hsl(18, 82%, 36%) |
| OKLCH | oklch(50.8% 0.148 40.4) |
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 #A83F11 | 6.20:1 | AA | Lc -85.3 | Fine for body text |
| Black text on #A83F11 | 3.38:1 | AA large text | Lc 24.0 | Dividers and decoration only |
| #A83F11 text on white | 6.20:1 | AA | Lc 80.1 | Fine for body text |
| #A83F11 text on black | 3.38:1 | AA large text | Lc -21.8 | 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 700.
-
Step 50
50
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F7E6E0
oklch(93.7% 0.02 40.5)
-
Step 200
200
#F2D1C6
oklch(88.5% 0.04 39.3)
-
Step 300
300
#EAB29E
oklch(81% 0.071 40.5)
-
Step 400
400
#DD8768
oklch(70.7% 0.115 40.5)
-
Step 500
500
#D1663E
oklch(63.1% 0.146 40.5)
-
Step 600
600
#BD4A19
oklch(55.7% 0.159 40.5)
-
Step 700
700 (this color)
#A83F11
oklch(50.8% 0.148 40.4)
-
Step 800
800
#84310D
oklch(42.8% 0.123 40.6)
-
Step 900
900
#6A2C14
oklch(37.6% 0.096 40.5)
-
Step 950
950
#3F1B0D
oklch(27.2% 0.061 41.2)
#A83F11 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) | #5E5207 | 0.145 |
| Deuteranopia (no green cones) | #776A0A | 0.133 |
| Tritanopia (no blue cones) | #B92237 | 0.069 |
| Achromatopsia (no color) | #616161 | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A83F11
#A83F11
oklch(50.8% 0.148 40.4)
- #00718A
#00718A
oklch(50.8% 0.093 220.3)
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 #A83F11, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Burnt Umber #A0450E ΔE 0.019
- Russet #A13905 ΔE 0.020
- Rusty Red #AF2F0D ΔE 0.028
- Brick #A03623 ΔE 0.031
- Cinnamon #AC4F06 ΔE 0.037
- Sinopia #BB3E03 ΔE 0.037
- Rust Red #AA2704 ΔE 0.038
- Sienna #A0522D ΔE 0.039
Use #A83F11 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.