#CA4E00
Closest named color: Rust Orange (#C45508). oklch(58.2% 0.172 43.1), rgb(202, 78, 0).
Aa
Black text reads best on this color (4.60:1).
About this color
#CA4E00 is a medium-dark, vivid orange. In OKLCH its lightness is 58%, its chroma 0.172 and its hue 43°. Its hue sits on the warm side of the wheel. The nearest named color is Rust Orange (#C45508), ΔE 0.016 away. Black text reads best on it, at 4.60:1.
| Hue family | Oranges |
| Lightness | medium-dark (58%) |
| Chroma | vivid (0.172) |
| Temperature | warm |
| Nearest name | Rust Orange (#C45508) |
| Black text | 4.60:1 |
| White text | 4.56:1 |
Values
| HEX | #CA4E00 |
| RGB | rgb(202, 78, 0) |
| HSL | hsl(23, 100%, 40%) |
| OKLCH | oklch(58.2% 0.172 43.1) |
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 #CA4E00 | 4.56:1 | AA | Lc -76.2 | Fine for body text |
| Black text on #CA4E00 | 4.60:1 | AA | Lc 33.4 | Non-text elements, placeholder text |
| #CA4E00 text on white | 4.56:1 | AA | Lc 70.7 | Content text, not long reading |
| #CA4E00 text on black | 4.60:1 | AA | Lc -30.9 | 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
#F8E5DE
oklch(93.5% 0.023 41.4)
-
Step 200
200
#F3D1C3
oklch(88.6% 0.043 43.7)
-
Step 300
300
#ECB199
oklch(80.9% 0.077 43.1)
-
Step 400
400
#E1855F
oklch(70.7% 0.125 42.9)
-
Step 500
500
#D5632E
oklch(63.1% 0.158 43.2)
-
Step 600
600 (this color)
#CA4E00
oklch(58.2% 0.172 43.1)
-
Step 700
700
#A13C00
oklch(49.1% 0.146 42.8)
-
Step 800
800
#853000
oklch(42.7% 0.127 42.7)
-
Step 900
900
#6D2A09
oklch(37.7% 0.104 42.6)
-
Step 950
950
#401A09
oklch(27.1% 0.065 43)
#CA4E00 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) | #736400 | 0.164 |
| Deuteranopia (no green cones) | #918000 | 0.148 |
| Tritanopia (no blue cones) | #DF2B43 | 0.085 |
| Achromatopsia (no color) | #767676 | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CA4E00
#CA4E00
oklch(58.2% 0.172 43.1)
- #0088AA
#0088AA
oklch(58.2% 0.109 223.5)
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 #CA4E00, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rust Orange #C45508 ΔE 0.016
- Burnt Orange #C04E01 ΔE 0.019
- Brick Orange #C14A09 ΔE 0.021
- Rusty Orange #CD5909 ΔE 0.023
- Deep Orange #DC4D01 ΔE 0.035
- Burnt Siena #B75203 ΔE 0.036
- Sinopia #BB3E03 ΔE 0.046
- Terra Cotta #C9643B ΔE 0.047
Use #CA4E00 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.