#C1580A
Closest named color: Rust Orange (#C45508). oklch(58.3% 0.154 48.3), rgb(193, 88, 10).
Aa
Black text reads best on this color (4.66:1).
About this color
#C1580A is a medium-dark, vivid orange. In OKLCH its lightness is 58%, its chroma 0.154 and its hue 48°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Orange (#C45508), ΔE 0.008 away. Black text reads best on it, at 4.66:1.
| Hue family | Oranges |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.154) |
| Temperature | warm |
| Nearest name | Rust Orange (#C45508) |
| Black text | 4.66:1 |
| White text | 4.49:1 |
Values
| HEX | #C1580A |
| RGB | rgb(193, 88, 10) |
| HSL | hsl(26, 90%, 40%) |
| OKLCH | oklch(58.3% 0.154 48.3) |
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 #C1580A | 4.49:1 | AA large text | Lc -76.0 | Fine for body text |
| Black text on #C1580A | 4.66:1 | AA | Lc 33.6 | Non-text elements, placeholder text |
| #C1580A text on white | 4.49:1 | AA large text | Lc 70.5 | Content text, not long reading |
| #C1580A text on black | 4.66:1 | AA | Lc -31.1 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#FBF4F0
oklch(97.1% 0.009 52.1)
-
Step 100
100
#F6E6DE
oklch(93.6% 0.021 48.5)
-
Step 200
200
#F0D2C4
oklch(88.5% 0.039 46.6)
-
Step 300
300
#E7B49A
oklch(81% 0.069 48.3)
-
Step 400
400
#D98B61
oklch(70.8% 0.111 48.6)
-
Step 500
500
#CC6B31
oklch(63.1% 0.142 48.6)
-
Step 600
600 (this color)
#C1580A
oklch(58.3% 0.154 48.3)
-
Step 700
700
#9A4300
oklch(49% 0.133 48.1)
-
Step 800
800
#7F3600
oklch(42.6% 0.116 48.2)
-
Step 900
900
#682F0C
oklch(37.7% 0.093 47.6)
-
Step 950
950
#3D1C09
oklch(26.9% 0.059 48.1)
#C1580A 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) | #776800 | 0.138 |
| Deuteranopia (no green cones) | #908003 | 0.126 |
| Tritanopia (no blue cones) | #D43F4B | 0.087 |
| Achromatopsia (no color) | #777777 | 0.155 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C1580A
#C1580A
oklch(58.3% 0.154 48.3)
- #0087B0
#0087B0
oklch(58.2% 0.114 228.3)
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 #C1580A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Orange #C45508 ΔE 0.008
- Burnt Orange #C04E01 ΔE 0.021
- Rusty Orange #CD5909 ΔE 0.023
- Burnt Siena #B75203 ΔE 0.025
- Orange Brown #BE6400 ΔE 0.028
- Copper #B66325 ΔE 0.028
- Brick Orange #C14A09 ΔE 0.029
- Orangey Brown #B16002 ΔE 0.034
Use #C1580A 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.