#CE521E
Closest named color: Rusty Orange (#CD5909). oklch(59.5% 0.169 40.4), rgb(206, 82, 30).
Aa
Black text reads best on this color (4.85:1).
About this color
#CE521E is a medium-dark, vivid orange. In OKLCH its lightness is 60%, its chroma 0.169 and its hue 40°. 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 4.85:1.
| Hue family | Oranges |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.169) |
| Temperature | warm |
| Nearest name | Rusty Orange (#CD5909) |
| Black text | 4.85:1 |
| White text | 4.32:1 |
Values
| HEX | #CE521E |
| RGB | rgb(206, 82, 30) |
| HSL | hsl(18, 75%, 46%) |
| OKLCH | oklch(59.5% 0.169 40.4) |
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 #CE521E | 4.32:1 | AA large text | Lc -74.6 | Content text, not long reading |
| Black text on #CE521E | 4.85:1 | AA | Lc 35.0 | Non-text elements, placeholder text |
| #CE521E text on white | 4.32:1 | AA large text | Lc 69.1 | Content text, not long reading |
| #CE521E text on black | 4.85:1 | AA | Lc -32.6 | 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 500.
-
Step 50
50
#FDF3F0
oklch(97.1% 0.012 37.4)
-
Step 100
100
#F9E5DE
oklch(93.6% 0.024 40.3)
-
Step 200
200
#F5D0C3
oklch(88.6% 0.045 40.3)
-
Step 300
300
#F0AF98
oklch(80.9% 0.083 40.3)
-
Step 400
400
#E5825E
oklch(70.7% 0.132 40.5)
-
Step 500
500 (this color)
#CE521E
oklch(59.5% 0.169 40.4)
-
Step 600
600
#C24300
oklch(55.5% 0.173 40.3)
-
Step 700
700
#A43800
oklch(49.1% 0.153 40.5)
-
Step 800
800
#882D00
oklch(42.8% 0.133 40.5)
-
Step 900
900
#6F2707
oklch(37.6% 0.11 40.6)
-
Step 950
950
#421808
oklch(27.1% 0.07 40.3)
#CE521E 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) | #766814 | 0.165 |
| Deuteranopia (no green cones) | #948418 | 0.151 |
| Tritanopia (no blue cones) | #E33248 | 0.078 |
| Achromatopsia (no color) | #797979 | 0.170 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #CE521E
#CE521E
oklch(59.5% 0.169 40.4)
- #008DAC
#008DAC
oklch(59.6% 0.109 220.6)
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 #CE521E, 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 0.023
- Deep Orange #DC4D01 ΔE 0.026
- Burnt Orange #C04E01 ΔE 0.032
- Brick Orange #C14A09 ΔE 0.033
- Terra Cotta #C9643B ΔE 0.036
- Terracotta #CA6641 ΔE 0.041
- Terracota #CB6843 ΔE 0.046
Use #CE521E 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.