#A43F15
Closest named color: Russet (#A13905). oklch(50.1% 0.143 40.2), rgb(164, 63, 21).
Aa
White text reads best on this color (6.36:1).
About this color
#A43F15 is a medium-dark, vivid orange. In OKLCH its lightness is 50%, its chroma 0.143 and its hue 40°. Its hue sits on the warm side of the wheel. The nearest named color is Russet (#A13905), ΔE 0.015 away. White text reads best on it, at 6.36:1.
| Hue family | Oranges |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.143) |
| Temperature | warm |
| Nearest name | Russet (#A13905) |
| Black text | 3.30:1 |
| White text | 6.36:1 |
Values
| HEX | #A43F15 |
| RGB | rgb(164, 63, 21) |
| HSL | hsl(18, 77%, 36%) |
| OKLCH | oklch(50.1% 0.143 40.2) |
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 #A43F15 | 6.36:1 | AA | Lc -86.0 | Fine for body text |
| Black text on #A43F15 | 3.30:1 | AA large text | Lc 23.2 | Dividers and decoration only |
| #A43F15 text on white | 6.36:1 | AA | Lc 80.8 | Fine for body text |
| #A43F15 text on black | 3.30:1 | AA large text | Lc -21.0 | 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
#FBF3F1
oklch(97% 0.009 34.3)
-
Step 100
100
#F7E6E0
oklch(93.7% 0.02 40.5)
-
Step 200
200
#F1D1C6
oklch(88.5% 0.039 39.9)
-
Step 300
300
#E9B29F
oklch(80.9% 0.07 39.9)
-
Step 400
400
#DB886A
oklch(70.7% 0.111 40.6)
-
Step 500
500
#CF6741
oklch(63% 0.142 40.2)
-
Step 600
600
#BB4C1F
oklch(55.7% 0.154 40.3)
-
Step 700
700 (this color)
#A43F15
oklch(50.1% 0.143 40.2)
-
Step 800
800
#823212
oklch(42.6% 0.119 40.1)
-
Step 900
900
#692D17
oklch(37.7% 0.093 39.9)
-
Step 950
950
#3E1B0F
oklch(27% 0.059 39.4)
#A43F15 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) | #5C510D | 0.141 |
| Deuteranopia (no green cones) | #756810 | 0.128 |
| Tritanopia (no blue cones) | #B52537 | 0.066 |
| Achromatopsia (no color) | #5F5F5F | 0.144 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A43F15
#A43F15
oklch(50.1% 0.143 40.2)
- #006F88
#006F88
oklch(50.1% 0.092 220.6)
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 #A43F15, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Russet #A13905 ΔE 0.015
- Burnt Umber #A0450E ΔE 0.015
- Brick #A03623 ΔE 0.026
- Rusty Red #AF2F0D ΔE 0.031
- Rust Red #AA2704 ΔE 0.037
- Sienna #A0522D ΔE 0.039
- Cinnamon #AC4F06 ΔE 0.042
- Warm Brown #964E02 ΔE 0.044
Use #A43F15 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.