Ultramarine — #0437F2
#0437F2, primarily known as Ultramarine, is composed of 2% red, 22% green, and 95% blue in RGB. In CMYK it is 98% cyan, 77% magenta, 0% yellow, 5% black. In HSL the hue angle is 227°, saturation 97%, and lightness 48%. The closest web-safe color is #0033FF.
Closest named match: Blue Bouquet (#0033EE, ΔE 1.52)
Color conversions
| Format | Value | Copy |
|---|---|---|
| HEX | #0437F2 | |
| RGB | rgb(4, 55, 242) | |
| HSL | hsl(227.1, 96.7%, 48.2%) | |
| HSV | hsv(227.1, 98.3%, 94.9%) | |
| CMYK | cmyk(98.3%, 77.3%, 0%, 5.1%) | |
| OKLCH | oklch(47.52% 0.2737 264.22) | |
| HWB | hwb(227.1 1.6% 5.1%) | |
| LAB | lab(34.3% 47.45 -96.84) | |
| LCH | lch(34.3% 107.8 296.1) | |
| OKLAB | oklab(47.52% -0.0276 -0.2723) | |
| XYZ | X 17.44 Y 9.17 Z 84.84 | |
| Web Safe | #0033FF | |
| RGB Percent | 1.6%, 21.6%, 94.9% | |
| Decimal | 276466 |
| Format | Value | Copy |
|---|---|---|
| HEX | #0437F2 | |
| RGB | rgb(4, 55, 242) | |
| HSL | hsl(227.1, 96.7%, 48.2%) | |
| HSV | hsv(227.1, 98.3%, 94.9%) | |
| CMYK | cmyk(98.3%, 77.3%, 0%, 5.1%) | |
| OKLCH | oklch(47.52% 0.2737 264.22) | |
| HWB | hwb(227.1 1.6% 5.1%) |
| Format | Value | Copy |
|---|---|---|
| LAB | lab(34.3% 47.45 -96.84) | |
| LCH | lch(34.3% 107.8 296.1) | |
| OKLAB | oklab(47.52% -0.0276 -0.2723) | |
| XYZ | X 17.44 Y 9.17 Z 84.84 | |
| Web Safe | #0033FF | |
| RGB Percent | 1.6%, 21.6%, 94.9% | |
| Decimal | 276466 |
Color harmonies
Harmony swatches keep the same saturation and lightness as the base color.
Complementary
Analogous
Triadic
Split-complementary
Tetradic
Square
Alternative colors
Nearby variations by nudging hue and lightness. Click a swatch to open that color.
Similar named colors
Nearest matches from our 30,000-name dataset (CIELAB ΔE). Click a swatch to open that color.
Tints, shades & tones
Contrast preview
On white
Sample
7.41:1
AA normal ✓ · AA large ✓
On black
Sample
2.83:1
AA normal ✗ · AA large ✗
Color blindness preview
Protanopia
90% similar
1.3% of men, 0.02% of women
Deuteranopia
96% similar
6% of men, 0.4% of women
Tritanopia
75% similar
0.001% of population
Achromatopsia
59% similar
0.003% of population
UI preview
Simplified components using a Tailwind-style scale generated from this color.
Button
Alert
Heads up
This alert uses lighter tints for the background and a mid-tone for the border.
Progress
67% complete