#355DB9#355DB9

#355DB9 is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.1% C 0.152 H 264.0°. Best body text is #FFFFFF at 6.14:1 contrast (WCAG AA passes).

Color values

HEX	#355DB9
RGB	rgb(53, 93, 185)
HSL	hsl(222, 55%, 47%)
HSV	hsv(222, 71%, 73%)
CMYK	cmyk(71.4%, 49.7%, 0%, 27.5%)
CIE-LAB	lab(41.35, 17.70, -52.77)
CIE-LCH	lch(41.35, 55.66, 288.54°)
OKLab	oklab(50.06% -0.0159 -0.1515)
OKLCH	oklch(50.06% 0.152 264)
XYZ	xyz(14.1364, 12.0869, 47.4775)
Luminance	0.1209 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355DB9 #B99135

analogous

#359FB9 #355DB9 #4F35B9

triadic

#355DB9 #B9355D #5DB935

tetradic

#355DB9 #B9359F #B99135 #35B94F

square

#355DB9 #B9359F #B99135 #35B94F

split-complementary

#355DB9 #B94F35 #9FB935

monochromatic

#1A2D5A #274589 #355DB9 #5B7FD0 #8BA4DE

Accessibility & contrast

On white

6.14

#355DB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#355DB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355DB9

6.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355DB9	#FFFFFF	#000000	##FFFFFF
##355DB9	1.00	6.14	3.42	6.14
#FFFFFF	6.14	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2868BC

Deuteranopia (green-blind)

#005CB7

Tritanopia (blue-blind)

#007382

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #355db9;
/* rgb */ color: rgb(53, 93, 185);
/* oklch */ color: oklch(50.1% 0.152 264.0);

Tailwind

colors: {
  custom: {
    50: '#7d8acf',
    500: '#355db9',
    950: '#000000',
  },
}

SCSS

$custom: #355db9;
$custom-light: #7d8acf;
$custom-dark: #000000;

JSON

{
  "hex": "#355db9",
  "rgb": {
    "r": 53,
    "g": 93,
    "b": 185
  },
  "hsl": {
    "h": 221.818,
    "s": 55.462,
    "l": 46.667
  },
  "oklch": {
    "l": 0.50057,
    "c": 0.15236,
    "h": 264
  },
  "luminance": 0.12088
}

Semantic roles & 50–950 ramp

primary

#355DB9

secondary

#C8B382

accent

#B149DF

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #355DB9

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

Preview Lab → · Contrast checker → · Palette generator →