#C45A17
Closest named color: Rust Orange (#C45508). oklch(59.1% 0.154 47), rgb(196, 90, 23).
Aa
Black text reads best on this color (4.82:1).
About this color
#C45A17 is a medium-dark, vivid orange. In OKLCH its lightness is 59%, its chroma 0.154 and its hue 47°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Orange (#C45508), ΔE 0.010 away. Black text reads best on it, at 4.82:1.
| Hue family | Oranges |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.154) |
| Temperature | warm |
| Nearest name | Rust Orange (#C45508) |
| Black text | 4.82:1 |
| White text | 4.35:1 |
Values
| HEX | #C45A17 |
| RGB | rgb(196, 90, 23) |
| HSL | hsl(23, 79%, 43%) |
| OKLCH | oklch(59.1% 0.154 47) |
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 #C45A17 | 4.35:1 | AA large text | Lc -75.0 | Content text, not long reading |
| Black text on #C45A17 | 4.82:1 | AA | Lc 34.6 | Non-text elements, placeholder text |
| #C45A17 text on white | 4.35:1 | AA large text | Lc 69.5 | Content text, not long reading |
| #C45A17 text on black | 4.82:1 | AA | Lc -32.2 | 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
#F6E6DF
oklch(93.6% 0.02 45.3)
-
Step 200
200
#F0D2C4
oklch(88.5% 0.039 46.6)
-
Step 300
300
#E7B49B
oklch(81% 0.069 47.4)
-
Step 400
400
#D98A63
oklch(70.7% 0.111 46.7)
-
Step 500
500
#CD6A35
oklch(63.1% 0.142 46.5)
-
Step 600
600 (this color)
#C45A17
oklch(59.1% 0.154 47)
-
Step 700
700
#9C4200
oklch(49.2% 0.136 47)
-
Step 800
800
#813500
oklch(42.8% 0.119 46.8)
-
Step 900
900
#682F0E
oklch(37.7% 0.093 46.8)
-
Step 950
950
#3D1C0B
oklch(27% 0.058 46.2)
#C45A17 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) | #796A06 | 0.140 |
| Deuteranopia (no green cones) | #928212 | 0.127 |
| Tritanopia (no blue cones) | #D8414E | 0.085 |
| Achromatopsia (no color) | #797979 | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C45A17
#C45A17
oklch(59.1% 0.154 47)
- #008AB2
#008AB2
oklch(59.1% 0.114 227.2)
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 #C45A17, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Orange #C45508 ΔE 0.010
- Rusty Orange #CD5909 ΔE 0.017
- Burnt Orange #C04E01 ΔE 0.026
- Orange Brown #BE6400 ΔE 0.027
- Copper #B66325 ΔE 0.029
- Terra Cotta #C9643B ΔE 0.032
- Burnt Siena #B75203 ΔE 0.033
- Brick Orange #C14A09 ΔE 0.033
Use #C45A17 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.