#C75721
Closest named color: Rust Orange (#C45508). oklch(59.1% 0.157 43), rgb(199, 87, 33).
Aa
Black text reads best on this color (4.81:1).
About this color
#C75721 is a medium-dark, vivid orange. In OKLCH its lightness is 59%, its chroma 0.157 and its hue 43°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Orange (#C45508), ΔE 0.013 away. Black text reads best on it, at 4.81:1.
| Hue family | Oranges |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.157) |
| Temperature | warm |
| Nearest name | Rust Orange (#C45508) |
| Black text | 4.81:1 |
| White text | 4.36:1 |
Values
| HEX | #C75721 |
| RGB | rgb(199, 87, 33) |
| HSL | hsl(20, 72%, 45%) |
| OKLCH | oklch(59.1% 0.157 43) |
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 #C75721 | 4.36:1 | AA large text | Lc -75.0 | Content text, not long reading |
| Black text on #C75721 | 4.81:1 | AA | Lc 34.6 | Non-text elements, placeholder text |
| #C75721 text on white | 4.36:1 | AA large text | Lc 69.5 | Content text, not long reading |
| #C75721 text on black | 4.81:1 | 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
#F7E6DF
oklch(93.7% 0.021 43.9)
-
Step 200
200
#F1D1C5
oklch(88.4% 0.04 41.7)
-
Step 300
300
#E9B29D
oklch(80.9% 0.071 41.9)
-
Step 400
400
#DB8866
oklch(70.6% 0.113 42.9)
-
Step 500
500
#CF683A
oklch(63.1% 0.144 43.3)
-
Step 600
600 (this color)
#C75721
oklch(59.1% 0.157 43)
-
Step 700
700
#A13C00
oklch(49.1% 0.146 42.8)
-
Step 800
800
#833308
oklch(42.8% 0.121 43.2)
-
Step 900
900
#692D12
oklch(37.6% 0.094 42.7)
-
Step 950
950
#3E1B0C
oklch(27% 0.06 42.8)
#C75721 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) | #776918 | 0.149 |
| Deuteranopia (no green cones) | #92821D | 0.135 |
| Tritanopia (no blue cones) | #DB3D4C | 0.078 |
| Achromatopsia (no color) | #797979 | 0.158 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C75721
#C75721
oklch(59.1% 0.157 43)
- #008BAD
#008BAD
oklch(59.1% 0.11 223)
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 #C75721, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Orange #C45508 ΔE 0.013
- Rusty Orange #CD5909 ΔE 0.017
- Burnt Orange #C04E01 ΔE 0.026
- Brick Orange #C14A09 ΔE 0.030
- Terra Cotta #C9643B ΔE 0.030
- Terracotta #CA6641 ΔE 0.037
- Burnt Siena #B75203 ΔE 0.037
- Copper #B66325 ΔE 0.038
Use #C75721 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.