#A03907
Closest named color: Russet (#A13905). oklch(48.6% 0.147 40.6), rgb(160, 57, 7).
Aa
White text reads best on this color (6.81:1).
About this color
#A03907 is a medium-dark, vivid orange. In OKLCH its lightness is 49%, its chroma 0.147 and its hue 41°. Its hue sits on the warm side of the wheel. The nearest named color is Russet (#A13905), ΔE 0.002 away. White text reads best on it, at 6.81:1.
| Hue family | Oranges |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.147) |
| Temperature | warm |
| Nearest name | Russet (#A13905) |
| Black text | 3.08:1 |
| White text | 6.81:1 |
Values
| HEX | #A03907 |
| RGB | rgb(160, 57, 7) |
| HSL | hsl(20, 92%, 33%) |
| OKLCH | oklch(48.6% 0.147 40.6) |
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 #A03907 | 6.81:1 | AA | Lc -87.6 | Fine for body text |
| Black text on #A03907 | 3.08:1 | AA large text | Lc 21.5 | Dividers and decoration only |
| #A03907 text on white | 6.81:1 | AA | Lc 82.6 | Fine for body text |
| #A03907 text on black | 3.08:1 | AA large text | Lc -19.3 | 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
#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
#E9B29E
oklch(80.9% 0.07 40.9)
-
Step 400
400
#DC8769
oklch(70.6% 0.113 40.1)
-
Step 500
500
#D0663E
oklch(63% 0.145 40.6)
-
Step 600
600
#BC4A1A
oklch(55.6% 0.158 40.4)
-
Step 700
700 (this color)
#A03907
oklch(48.6% 0.147 40.6)
-
Step 800
800
#83310E
oklch(42.6% 0.121 40.5)
-
Step 900
900
#6A2D15
oklch(37.8% 0.094 40.8)
-
Step 950
950
#3E1B0E
oklch(27% 0.059 40.5)
#A03907 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) | #574C00 | 0.145 |
| Deuteranopia (no green cones) | #716300 | 0.129 |
| Tritanopia (no blue cones) | #B11B31 | 0.067 |
| Achromatopsia (no color) | #5B5B5B | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #A03907
#A03907
oklch(48.6% 0.147 40.6)
- #006A82
#006A82
oklch(48.5% 0.089 220.6)
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 #A03907, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Russet #A13905 ΔE 0.002
- Brick #A03623 ΔE 0.021
- Burnt Umber #A0450E ΔE 0.024
- Rust Red #AA2704 ΔE 0.031
- Rusty Red #AF2F0D ΔE 0.032
- Burnt Red #9F2305 ΔE 0.037
- Brown #A52A2A ΔE 0.042
- Brown Red #922B05 ΔE 0.043
Use #A03907 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.