#C45817
Closest named color: Rust Orange (#C45508). oklch(58.8% 0.155 46), rgb(196, 88, 23).
Aa
Black text reads best on this color (4.75:1).
About this color
#C45817 is a medium-dark, vivid orange. In OKLCH its lightness is 59%, its chroma 0.155 and its hue 46°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Orange (#C45508), ΔE 0.007 away. Black text reads best on it, at 4.75:1.
| Hue family | Oranges |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.155) |
| Temperature | warm |
| Nearest name | Rust Orange (#C45508) |
| Black text | 4.75:1 |
| White text | 4.41:1 |
Values
| HEX | #C45817 |
| RGB | rgb(196, 88, 23) |
| HSL | hsl(23, 79%, 43%) |
| OKLCH | oklch(58.8% 0.155 46) |
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 #C45817 | 4.41:1 | AA large text | Lc -75.4 | Fine for body text |
| Black text on #C45817 | 4.75:1 | AA | Lc 34.2 | Non-text elements, placeholder text |
| #C45817 text on white | 4.41:1 | AA large text | Lc 69.9 | Content text, not long reading |
| #C45817 text on black | 4.75:1 | AA | Lc -31.7 | 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
#E8B39B
oklch(80.9% 0.07 45.5)
-
Step 400
400
#DA8A63
oklch(70.8% 0.112 46.4)
-
Step 500
500
#CE6A35
oklch(63.2% 0.143 46.3)
-
Step 600
600 (this color)
#C45817
oklch(58.8% 0.155 46)
-
Step 700
700
#9D4100
oklch(49.2% 0.138 46.2)
-
Step 800
800
#813401
oklch(42.6% 0.119 45.9)
-
Step 900
900
#682F0F
oklch(37.7% 0.092 46.4)
-
Step 950
950
#3D1C0B
oklch(27% 0.058 46.2)
#C45817 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) | #776907 | 0.144 |
| Deuteranopia (no green cones) | #918112 | 0.130 |
| Tritanopia (no blue cones) | #D83E4C | 0.084 |
| Achromatopsia (no color) | #787878 | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C45817
#C45817
oklch(58.8% 0.155 46)
- #0089AF
#0089AF
oklch(58.7% 0.112 226.1)
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 #C45817, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Orange #C45508 ΔE 0.007
- Rusty Orange #CD5909 ΔE 0.018
- Burnt Orange #C04E01 ΔE 0.023
- Brick Orange #C14A09 ΔE 0.029
- Burnt Siena #B75203 ΔE 0.031
- Orange Brown #BE6400 ΔE 0.031
- Copper #B66325 ΔE 0.031
- Terra Cotta #C9643B ΔE 0.034
Use #C45817 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.