#C66313
Closest named color: Rust (#CA6702). oklch(60.7% 0.15 51.8), rgb(198, 99, 19).
Aa
Black text reads best on this color (5.19:1).
About this color
#C66313 is a medium-dark, vivid orange. In OKLCH its lightness is 61%, its chroma 0.150 and its hue 52°. Its hue sits on the warm side of the wheel. The nearest named color is Rust (#CA6702), ΔE 0.014 away. Black text reads best on it, at 5.19:1.
| Hue family | Oranges |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.150) |
| Temperature | warm |
| Nearest name | Rust (#CA6702) |
| Black text | 5.19:1 |
| White text | 4.04:1 |
Values
| HEX | #C66313 |
| RGB | rgb(198, 99, 19) |
| HSL | hsl(27, 82%, 43%) |
| OKLCH | oklch(60.7% 0.15 51.8) |
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 #C66313 | 4.04:1 | AA large text | Lc -72.6 | Content text, not long reading |
| Black text on #C66313 | 5.19:1 | AA | Lc 37.0 | Non-text elements, placeholder text |
| #C66313 text on white | 4.04:1 | AA large text | Lc 67.1 | Content text, not long reading |
| #C66313 text on black | 5.19:1 | AA | Lc -34.6 | 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 500.
-
Step 50
50
#FBF4F0
oklch(97.1% 0.009 52.1)
-
Step 100
100
#F6E6DD
oklch(93.5% 0.021 51.5)
-
Step 200
200
#F0D2C1
oklch(88.4% 0.041 51.4)
-
Step 300
300
#E8B495
oklch(81% 0.074 52.2)
-
Step 400
400
#DA8A59
oklch(70.6% 0.117 51.4)
-
Step 500
500 (this color)
#C66313
oklch(60.7% 0.15 51.8)
-
Step 600
600
#B25500
oklch(55.5% 0.143 51.6)
-
Step 700
700
#974700
oklch(49.2% 0.127 51.6)
-
Step 800
800
#7C3900
oklch(42.6% 0.11 51.5)
-
Step 900
900
#682F00
oklch(37.6% 0.097 51.8)
-
Step 950
950
#3D1C05
oklch(26.9% 0.062 52)
#C66313 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) | #807000 | 0.128 |
| Deuteranopia (no green cones) | #988710 | 0.115 |
| Tritanopia (no blue cones) | #DA4C55 | 0.092 |
| Achromatopsia (no color) | #7E7E7E | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C66313
#C66313
oklch(60.7% 0.15 51.8)
- #008EBF
#008EBF
oklch(60.7% 0.124 231.8)
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 #C66313, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust #CA6702 ΔE 0.014
- Orange Brown #BE6400 ΔE 0.017
- Browny Orange #CA6B02 ΔE 0.022
- Rusty Orange #CD5909 ΔE 0.022
- Tiger's Eye #BC6C25 ΔE 0.024
- Chocolate #D2691E ΔE 0.028
- Brown Orange #B96902 ΔE 0.028
- Terra Cotta #C9643B ΔE 0.029
Use #C66313 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.