#C4582B
Closest named color: Rust Orange (#C45508). oklch(58.9% 0.15 41.5), rgb(196, 88, 43).
Aa
Black text reads best on this color (4.77:1).
About this color
#C4582B is a medium-dark, vivid orange. In OKLCH its lightness is 59%, its chroma 0.150 and its hue 41°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Orange (#C45508), ΔE 0.018 away. Black text reads best on it, at 4.77:1.
| Hue family | Oranges |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.150) |
| Temperature | warm |
| Nearest name | Rust Orange (#C45508) |
| Black text | 4.77:1 |
| White text | 4.39:1 |
Values
| HEX | #C4582B |
| RGB | rgb(196, 88, 43) |
| HSL | hsl(18, 64%, 47%) |
| OKLCH | oklch(58.9% 0.15 41.5) |
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 #C4582B | 4.39:1 | AA large text | Lc -75.3 | Fine for body text |
| Black text on #C4582B | 4.77:1 | AA | Lc 34.3 | Non-text elements, placeholder text |
| #C4582B text on white | 4.39:1 | AA large text | Lc 69.8 | Content text, not long reading |
| #C4582B text on black | 4.77:1 | AA | Lc -31.8 | 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
#FBF4F1
oklch(97.2% 0.009 44.9)
-
Step 100
100
#F6E6E0
oklch(93.6% 0.019 41.8)
-
Step 200
200
#F0D2C6
oklch(88.6% 0.038 43.1)
-
Step 300
300
#E7B39F
oklch(80.9% 0.067 42)
-
Step 400
400
#DA896B
oklch(70.7% 0.108 41)
-
Step 500
500
#CD6941
oklch(63% 0.138 41.7)
-
Step 600
600 (this color)
#C4582B
oklch(58.9% 0.15 41.5)
-
Step 700
700
#9F3E11
oklch(49.1% 0.14 41.5)
-
Step 800
800
#813412
oklch(42.7% 0.116 41.6)
-
Step 900
900
#682E17
oklch(37.7% 0.09 41.2)
-
Step 950
950
#3D1C0F
oklch(27% 0.056 41.6)
#C4582B 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) | #766925 | 0.144 |
| Deuteranopia (no green cones) | #918228 | 0.132 |
| Tritanopia (no blue cones) | #D7404F | 0.074 |
| Achromatopsia (no color) | #787878 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C4582B
#C4582B
oklch(58.9% 0.15 41.5)
- #008BAA
#008BAA
oklch(59% 0.108 220.9)
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 #C4582B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Orange #C45508 ΔE 0.018
- Rusty Orange #CD5909 ΔE 0.024
- Burnt Orange #C04E01 ΔE 0.027
- Terra Cotta #C9643B ΔE 0.029
- Brick Orange #C14A09 ΔE 0.031
- Terracotta #CA6641 ΔE 0.035
- Copper #B66325 ΔE 0.035
- Burnt Siena #B75203 ΔE 0.036
Use #C4582B 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.