#355FB9#355FB9

#355FB9 is a mid, vivid blue. Relative luminance 0.124; OKLCH L 50.5% C 0.150 H 263.2°. Best body text is #FFFFFF at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#355FB9
RGB	rgb(53, 95, 185)
HSL	hsl(221, 55%, 47%)
HSV	hsv(221, 71%, 73%)
CMYK	cmyk(71.4%, 48.6%, 0%, 27.5%)
CIE-LAB	lab(41.91, 16.40, -51.88)
CIE-LCH	lch(41.91, 54.41, 287.55°)
OKLab	oklab(50.48% -0.0176 -0.1488)
OKLCH	oklch(50.48% 0.15 263.2)
XYZ	xyz(14.3143, 12.4426, 47.5368)
Luminance	0.1244 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355FB9 #B98F35

analogous

#35A1B9 #355FB9 #4D35B9

triadic

#355FB9 #B9355F #5FB935

tetradic

#355FB9 #B935A1 #B98F35 #35B94D

square

#355FB9 #B935A1 #B98F35 #35B94D

split-complementary

#355FB9 #B94D35 #A1B935

monochromatic

#1A2E5A #274789 #355FB9 #5B80D0 #8BA5DE

Accessibility & contrast

On white

6.02

#355FB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#355FB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355FB9

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355FB9	#FFFFFF	#000000	##FFFFFF
##355FB9	1.00	6.02	3.49	6.02
#FFFFFF	6.02	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D69BC

Deuteranopia (green-blind)

#035DB7

Tritanopia (blue-blind)

#007483

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #355fb9;
/* rgb */ color: rgb(53, 95, 185);
/* oklch */ color: oklch(50.5% 0.150 263.2);

Tailwind

colors: {
  custom: {
    50: '#7d8bcf',
    500: '#355fb9',
    950: '#000000',
  },
}

SCSS

$custom: #355fb9;
$custom-light: #7d8bcf;
$custom-dark: #000000;

JSON

{
  "hex": "#355fb9",
  "rgb": {
    "r": 53,
    "g": 95,
    "b": 185
  },
  "hsl": {
    "h": 220.909,
    "s": 55.462,
    "l": 46.667
  },
  "oklch": {
    "l": 0.50483,
    "c": 0.14989,
    "h": 263.2
  },
  "luminance": 0.12444
}

Semantic roles & 50–950 ramp

primary

#355FB9

secondary

#C8B282

accent

#AF49DF

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #355FB9

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

Preview Lab → · Contrast checker → · Palette generator →