#A6420F
Closest named color: Burnt Umber (#A0450E). oklch(50.8% 0.144 42.5), rgb(166, 66, 15).
Aa
White text reads best on this color (6.16:1).
About this color
#A6420F is a medium-dark, vivid orange. In OKLCH its lightness is 51%, its chroma 0.144 and its hue 43°. 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 6.16:1.
| Hue family | Oranges |
| Lightness | medium-dark (51%) |
| Chroma | vivid (0.144) |
| Temperature | warm |
| Nearest name | Burnt Umber (#A0450E) |
| Black text | 3.40:1 |
| White text | 6.16:1 |
Values
| HEX | #A6420F |
| RGB | rgb(166, 66, 15) |
| HSL | hsl(20, 83%, 35%) |
| OKLCH | oklch(50.8% 0.144 42.5) |
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 #A6420F | 6.16:1 | AA | Lc -85.1 | Fine for body text |
| Black text on #A6420F | 3.40:1 | AA large text | Lc 24.1 | Dividers and decoration only |
| #A6420F text on white | 6.16:1 | AA | Lc 79.9 | Fine for body text |
| #A6420F text on black | 3.40:1 | AA large text | Lc -21.9 | 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
#FBF4F1
oklch(97.2% 0.009 44.9)
-
Step 100
100
#F6E6DF
oklch(93.6% 0.02 45.3)
-
Step 200
200
#F1D2C5
oklch(88.6% 0.039 44.1)
-
Step 300
300
#E8B39D
oklch(80.9% 0.069 43.6)
-
Step 400
400
#DB8967
oklch(70.8% 0.111 43.1)
-
Step 500
500
#CF683D
oklch(63.1% 0.143 42.3)
-
Step 600
600
#BA4C16
oklch(55.5% 0.155 42.4)
-
Step 700
700 (this color)
#A6420F
oklch(50.8% 0.144 42.5)
-
Step 800
800
#82330C
oklch(42.7% 0.119 42.5)
-
Step 900
900
#692E14
oklch(37.8% 0.093 42.6)
-
Step 950
950
#3E1B0D
oklch(27% 0.06 41.7)
#A6420F 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) | #5F5303 | 0.139 |
| Deuteranopia (no green cones) | #776A08 | 0.126 |
| Tritanopia (no blue cones) | #B72839 | 0.071 |
| Achromatopsia (no color) | #616161 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A6420F
#A6420F
oklch(50.8% 0.144 42.5)
- #00718C
#00718C
oklch(50.9% 0.094 222)
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 #A6420F, 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 0.022
- Cinnamon #AC4F06 ΔE 0.033
- Sienna #A0522D ΔE 0.034
- Rusty Red #AF2F0D ΔE 0.035
- Brick #A03623 ΔE 0.035
- Warm Brown #964E02 ΔE 0.040
- Sinopia #BB3E03 ΔE 0.040
Use #A6420F 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.