#C45309
Closest named color: Rust Orange (#C45508). oklch(58% 0.161 45.4), rgb(196, 83, 9).
Aa
Black text reads best on this color (4.58:1).
About this color
#C45309 is a medium-dark, vivid orange. In OKLCH its lightness is 58%, its chroma 0.161 and its hue 45°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Orange (#C45508), ΔE 0.004 away. Black text reads best on it, at 4.58:1.
| Hue family | Oranges |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.161) |
| Temperature | warm |
| Nearest name | Rust Orange (#C45508) |
| Black text | 4.58:1 |
| White text | 4.57:1 |
Values
| HEX | #C45309 |
| RGB | rgb(196, 83, 9) |
| HSL | hsl(24, 91%, 40%) |
| OKLCH | oklch(58% 0.161 45.4) |
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 #C45309 | 4.57:1 | AA | Lc -76.5 | Fine for body text |
| Black text on #C45309 | 4.58:1 | AA | Lc 33.1 | Non-text elements, placeholder text |
| #C45309 text on white | 4.57:1 | AA | Lc 71.0 | Content text, not long reading |
| #C45309 text on black | 4.58:1 | AA | Lc -30.7 | 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
#F7E6DE
oklch(93.6% 0.022 47)
-
Step 200
200
#F1D2C4
oklch(88.6% 0.04 45.8)
-
Step 300
300
#E9B29A
oklch(80.8% 0.073 44.7)
-
Step 400
400
#DC8861
oklch(70.6% 0.116 45.3)
-
Step 500
500
#D06732
oklch(63% 0.148 45.1)
-
Step 600
600 (this color)
#C45309
oklch(58% 0.161 45.4)
-
Step 700
700
#9E4000
oklch(49.2% 0.14 45.4)
-
Step 800
800
#823300
oklch(42.6% 0.121 45.2)
-
Step 900
900
#6A2D0C
oklch(37.7% 0.097 45)
-
Step 950
950
#3E1B0A
oklch(26.9% 0.061 44.8)
#C45309 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) | #746500 | 0.150 |
| Deuteranopia (no green cones) | #8F7F00 | 0.137 |
| Tritanopia (no blue cones) | #D83747 | 0.084 |
| Achromatopsia (no color) | #757575 | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C45309
#C45309
oklch(58% 0.161 45.4)
- #0087AB
#0087AB
oklch(58% 0.11 225.1)
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 #C45309, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Orange #C45508 ΔE 0.004
- Burnt Orange #C04E01 ΔE 0.014
- Brick Orange #C14A09 ΔE 0.020
- Rusty Orange #CD5909 ΔE 0.023
- Burnt Siena #B75203 ΔE 0.026
- Copper #B66325 ΔE 0.038
- Orange Brown #BE6400 ΔE 0.038
- Terra Cotta #C9643B ΔE 0.043
Use #C45309 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.