#CA5525
Closest named color: Rusty Orange (#CD5909). oklch(59.3% 0.161 40.7), rgb(202, 85, 37).
Aa
Black text reads best on this color (4.83:1).
About this color
#CA5525 is a medium-dark, vivid orange. In OKLCH its lightness is 59%, its chroma 0.161 and its hue 41°. Its hue sits on the warm side of the wheel. The nearest named color is Rusty Orange (#CD5909), ΔE 0.019 away. Black text reads best on it, at 4.83:1.
| Hue family | Oranges |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.161) |
| Temperature | warm |
| Nearest name | Rusty Orange (#CD5909) |
| Black text | 4.83:1 |
| White text | 4.34:1 |
Values
| HEX | #CA5525 |
| RGB | rgb(202, 85, 37) |
| HSL | hsl(17, 69%, 47%) |
| OKLCH | oklch(59.3% 0.161 40.7) |
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 #CA5525 | 4.34:1 | AA large text | Lc -74.8 | Content text, not long reading |
| Black text on #CA5525 | 4.83:1 | AA | Lc 34.8 | Non-text elements, placeholder text |
| #CA5525 text on white | 4.34:1 | AA large text | Lc 69.3 | Content text, not long reading |
| #CA5525 text on black | 4.83:1 | AA | Lc -32.4 | 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
#FCF3F1
oklch(97.1% 0.01 32.5)
-
Step 100
100
#F7E6DF
oklch(93.7% 0.021 43.9)
-
Step 200
200
#F2D1C5
oklch(88.5% 0.041 41)
-
Step 300
300
#EAB29D
oklch(81% 0.072 41.5)
-
Step 400
400
#DD8767
oklch(70.7% 0.115 41.1)
-
Step 500
500
#D2653C
oklch(63.1% 0.149 40.5)
-
Step 600
600 (this color)
#CA5525
oklch(59.3% 0.161 40.7)
-
Step 700
700
#A33904
oklch(49.1% 0.15 40.5)
-
Step 800
800
#84310B
oklch(42.7% 0.123 41.1)
-
Step 900
900
#6A2C13
oklch(37.6% 0.096 41)
-
Step 950
950
#3F1B0D
oklch(27.2% 0.061 41.2)
#CA5525 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) | #76691E | 0.156 |
| Deuteranopia (no green cones) | #938321 | 0.142 |
| Tritanopia (no blue cones) | #DE394B | 0.076 |
| Achromatopsia (no color) | #797979 | 0.162 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CA5525
#CA5525
oklch(59.3% 0.161 40.7)
- #008CAB
#008CAB
oklch(59.3% 0.108 220.8)
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 #CA5525, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rusty Orange #CD5909 ΔE 0.019
- Rust Orange #C45508 ΔE 0.019
- Burnt Orange #C04E01 ΔE 0.029
- Terra Cotta #C9643B ΔE 0.031
- Brick Orange #C14A09 ΔE 0.031
- Deep Orange #DC4D01 ΔE 0.034
- Terracotta #CA6641 ΔE 0.037
- Terracota #CB6843 ΔE 0.041
Use #CA5525 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.