#C66036
Closest named color: Terra Cotta (#C9643B). oklch(60.5% 0.142 41.9), rgb(198, 96, 54).
Aa
Black text reads best on this color (5.12:1).
About this color
#C66036 is a medium-dark, vivid orange. In OKLCH its lightness is 61%, its chroma 0.142 and its hue 42°. Its hue sits on the warm side of the wheel. The nearest named color is Terra Cotta (#C9643B), ΔE 0.011 away. Black text reads best on it, at 5.12:1.
| Hue family | Oranges |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.142) |
| Temperature | warm |
| Nearest name | Terra Cotta (#C9643B) |
| Black text | 5.12:1 |
| White text | 4.09:1 |
Values
| HEX | #C66036 |
| RGB | rgb(198, 96, 54) |
| HSL | hsl(18, 57%, 49%) |
| OKLCH | oklch(60.5% 0.142 41.9) |
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 #C66036 | 4.09:1 | AA large text | Lc -73.1 | Content text, not long reading |
| Black text on #C66036 | 5.12:1 | AA | Lc 36.5 | Non-text elements, placeholder text |
| #C66036 text on white | 4.09:1 | AA large text | Lc 67.6 | Content text, not long reading |
| #C66036 text on black | 5.12:1 | AA | Lc -34.1 | 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 500.
-
Step 50
50
#FBF4F1
oklch(97.2% 0.009 44.9)
-
Step 100
100
#F6E6E0
oklch(93.6% 0.019 41.8)
-
Step 200
200
#F1D1C6
oklch(88.5% 0.039 39.9)
-
Step 300
300
#E8B29E
oklch(80.8% 0.069 41.3)
-
Step 400
400
#DB8868
oklch(70.6% 0.112 41.7)
-
Step 500
500 (this color)
#C66036
oklch(60.5% 0.142 41.9)
-
Step 600
600
#BA4C19
oklch(55.5% 0.154 41.8)
-
Step 700
700
#A03C09
oklch(49% 0.144 41.7)
-
Step 800
800
#82330E
oklch(42.7% 0.119 42)
-
Step 900
900
#692E15
oklch(37.8% 0.092 42)
-
Step 950
950
#3E1B0E
oklch(27% 0.059 40.5)
#C66036 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) | #7C6F31 | 0.134 |
| Deuteranopia (no green cones) | #958634 | 0.123 |
| Tritanopia (no blue cones) | #D94B57 | 0.072 |
| Achromatopsia (no color) | #7D7D7D | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C66036
#C66036
oklch(60.5% 0.142 41.9)
- #0090B1
#0090B1
oklch(60.5% 0.112 221.6)
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 #C66036, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Terra Cotta #C9643B ΔE 0.011
- Terracotta #CA6641 ΔE 0.017
- Terracota #CB6843 ΔE 0.022
- Rusty Orange #CD5909 ΔE 0.026
- Adobe #BD6C48 ΔE 0.029
- Rust Orange #C45508 ΔE 0.031
- Copper #B66325 ΔE 0.035
- Rust #CA6702 ΔE 0.037
Use #C66036 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.