#CA5404
Closest named color: Rust Orange (#C45508). oklch(59% 0.167 45.1), rgb(202, 84, 4).
Aa
Black text reads best on this color (4.78:1).
About this color
#CA5404 is a medium-dark, vivid orange. In OKLCH its lightness is 59%, its chroma 0.167 and its hue 45°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Orange (#C45508), ΔE 0.011 away. Black text reads best on it, at 4.78:1.
| Hue family | Oranges |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.167) |
| Temperature | warm |
| Nearest name | Rust Orange (#C45508) |
| Black text | 4.78:1 |
| White text | 4.39:1 |
Values
| HEX | #CA5404 |
| RGB | rgb(202, 84, 4) |
| HSL | hsl(24, 96%, 40%) |
| OKLCH | oklch(59% 0.167 45.1) |
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 #CA5404 | 4.39:1 | AA large text | Lc -75.1 | Fine for body text |
| Black text on #CA5404 | 4.78:1 | AA | Lc 34.5 | Non-text elements, placeholder text |
| #CA5404 text on white | 4.39:1 | AA large text | Lc 69.6 | Content text, not long reading |
| #CA5404 text on black | 4.78:1 | AA | Lc -32.1 | 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 600.
-
Step 50
50
#FCF3F0
oklch(97% 0.011 39.4)
-
Step 100
100
#F7E6DE
oklch(93.6% 0.022 47)
-
Step 200
200
#F2D1C3
oklch(88.5% 0.042 44.3)
-
Step 300
300
#EBB299
oklch(81% 0.075 44.8)
-
Step 400
400
#DE875F
oklch(70.7% 0.12 45)
-
Step 500
500
#D3662D
oklch(63.2% 0.154 45.3)
-
Step 600
600 (this color)
#CA5404
oklch(59% 0.167 45.1)
-
Step 700
700
#9E3F00
oklch(49.1% 0.14 44.9)
-
Step 800
800
#823300
oklch(42.6% 0.121 45.2)
-
Step 900
900
#6B2C08
oklch(37.7% 0.1 45.2)
-
Step 950
950
#3F1B08
oklch(27.1% 0.063 46)
#CA5404 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) | #776800 | 0.155 |
| Deuteranopia (no green cones) | #938300 | 0.142 |
| Tritanopia (no blue cones) | #DF3648 | 0.087 |
| Achromatopsia (no color) | #787878 | 0.168 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CA5404
#CA5404
oklch(59% 0.167 45.1)
- #008AAF
#008AAF
oklch(58.9% 0.112 225.2)
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 #CA5404, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Orange #C45508 ΔE 0.011
- Rusty Orange #CD5909 ΔE 0.012
- Burnt Orange #C04E01 ΔE 0.025
- Brick Orange #C14A09 ΔE 0.029
- Deep Orange #DC4D01 ΔE 0.034
- Burnt Siena #B75203 ΔE 0.038
- Terra Cotta #C9643B ΔE 0.038
- Orange Brown #BE6400 ΔE 0.039
Use #CA5404 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.