#355FBA#355FBA

#355FBA is a mid, vivid blue. Relative luminance 0.125; OKLCH L 50.6% C 0.151 H 263.4°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#355FBA
RGB	rgb(53, 95, 186)
HSL	hsl(221, 56%, 47%)
HSV	hsv(221, 72%, 73%)
CMYK	cmyk(71.5%, 48.9%, 0%, 27.1%)
CIE-LAB	lab(41.98, 16.77, -52.35)
CIE-LCH	lch(41.98, 54.98, 287.77°)
OKLab	oklab(50.55% -0.0175 -0.1503)
OKLCH	oklch(50.55% 0.151 263.4)
XYZ	xyz(14.4202, 12.4850, 48.0947)
Luminance	0.1249 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355FBA #BA9035

analogous

#35A2BA #355FBA #4E35BA

triadic

#355FBA #BA355F #5FBA35

tetradic

#355FBA #BA35A2 #BA9035 #35BA4E

square

#355FBA #BA35A2 #BA9035 #35BA4E

split-complementary

#355FBA #BA4E35 #A2BA35

monochromatic

#1A2E5B #27478A #355FBA #5C81D0 #8BA5DE

Accessibility & contrast

On white

6.00

#355FBA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#355FBA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355FBA

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355FBA	#FFFFFF	#000000	##FFFFFF
##355FBA	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C6ABD

Deuteranopia (green-blind)

#005DB8

Tritanopia (blue-blind)

#007483

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #355fba;
/* rgb */ color: rgb(53, 95, 186);
/* oklch */ color: oklch(50.6% 0.151 263.4);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#355fba",
  "rgb": {
    "r": 53,
    "g": 95,
    "b": 186
  },
  "hsl": {
    "h": 221.053,
    "s": 55.649,
    "l": 46.863
  },
  "oklch": {
    "l": 0.50554,
    "c": 0.15128,
    "h": 263.4
  },
  "luminance": 0.12486
}

Semantic roles & 50–950 ramp

primary

#355FBA

secondary

#C8B282

accent

#B049DF

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #355FBA

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

Preview Lab → · Contrast checker → · Palette generator →