#355EC4#355EC4

#355EC4 is a mid, vivid blue. Relative luminance 0.127; OKLCH L 51.1% C 0.166 H 264.7°. Best body text is #FFFFFF at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#355EC4
RGB	rgb(53, 94, 196)
HSL	hsl(223, 57%, 49%)
HSV	hsv(223, 73%, 77%)
CMYK	cmyk(73%, 52%, 0%, 23.1%)
CIE-LAB	lab(42.38, 21.14, -57.52)
CIE-LCH	lch(42.38, 61.28, 290.18°)
OKLab	oklab(51.08% -0.0155 -0.1655)
OKLCH	oklch(51.08% 0.166 264.7)
XYZ	xyz(15.4312, 12.7462, 53.8608)
Luminance	0.1275 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355EC4 #C49B35

analogous

#35A6C4 #355EC4 #5435C4

triadic

#355EC4 #C4355E #5EC435

tetradic

#355EC4 #C435A6 #C49B35 #35C454

square

#355EC4 #C435A6 #C49B35 #35C454

split-complementary

#355EC4 #C45435 #A6C435

monochromatic

#1B3064 #284794 #355EC4 #6283D4 #92A9E1

Accessibility & contrast

On white

5.92

#355EC4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.55

#355EC4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355EC4

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355EC4	#FFFFFF	#000000	##FFFFFF
##355EC4	1.00	5.92	3.55	5.92
#FFFFFF	5.92	1.00	21.00	1.00
#000000	3.55	21.00	1.00	21.00
##FFFFFF	5.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A6BC8

Deuteranopia (green-blind)

#005EC2

Tritanopia (blue-blind)

#007788

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #355ec4;
/* rgb */ color: rgb(53, 94, 196);
/* oklch */ color: oklch(51.1% 0.166 264.7);

Tailwind

colors: {
  custom: {
    50: '#7f8bd7',
    500: '#355ec4',
    950: '#000000',
  },
}

SCSS

$custom: #355ec4;
$custom-light: #7f8bd7;
$custom-dark: #000000;

JSON

{
  "hex": "#355ec4",
  "rgb": {
    "r": 53,
    "g": 94,
    "b": 196
  },
  "hsl": {
    "h": 222.797,
    "s": 57.43,
    "l": 48.824
  },
  "oklch": {
    "l": 0.51076,
    "c": 0.1662,
    "h": 264.7
  },
  "luminance": 0.12748
}

Semantic roles & 50–950 ramp

primary

#355EC4

secondary

#CCB988

accent

#B547E1

background

#F8F8FD

surface

#F0F0FA

border

#CBCBD3

text

#0B0B14

muted

#7C7C83

Preview Lab

Preview with #355EC4

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →