#355DB4#355DB4

#355DB4 is a mid, vivid blue. Relative luminance 0.119; OKLCH L 49.7% C 0.145 H 263.5°. Best body text is #FFFFFF at 6.22:1 contrast (WCAG AA passes).

Color values

HEX	#355DB4
RGB	rgb(53, 93, 180)
HSL	hsl(221, 55%, 46%)
HSV	hsv(221, 71%, 71%)
CMYK	cmyk(70.6%, 48.3%, 0%, 29.4%)
CIE-LAB	lab(41.02, 15.84, -50.38)
CIE-LCH	lch(41.02, 52.81, 287.46°)
OKLab	oklab(49.7% -0.0165 -0.1445)
OKLCH	oklch(49.7% 0.145 263.5)
XYZ	xyz(13.6179, 11.8795, 44.7465)
Luminance	0.1188 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355DB4 #B48C35

analogous

#359CB4 #355DB4 #4C35B4

triadic

#355DB4 #B4355D #5DB435

tetradic

#355DB4 #B4359C #B48C35 #35B44C

square

#355DB4 #B4359C #B48C35 #35B44C

split-complementary

#355DB4 #B44C35 #9CB435

monochromatic

#192C55 #274585 #355DB4 #587DCE #88A2DC

Accessibility & contrast

On white

6.22

#355DB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#355DB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355DB4

6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355DB4	#FFFFFF	#000000	##FFFFFF
##355DB4	1.00	6.22	3.38	6.22
#FFFFFF	6.22	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E67B7

Deuteranopia (green-blind)

#0B5BB2

Tritanopia (blue-blind)

#007180

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #355db4;
/* rgb */ color: rgb(53, 93, 180);
/* oklch */ color: oklch(49.7% 0.145 263.5);

Tailwind

colors: {
  custom: {
    50: '#7c8acb',
    500: '#355db4',
    950: '#000000',
  },
}

SCSS

$custom: #355db4;
$custom-light: #7c8acb;
$custom-dark: #000000;

JSON

{
  "hex": "#355db4",
  "rgb": {
    "r": 53,
    "g": 93,
    "b": 180
  },
  "hsl": {
    "h": 221.102,
    "s": 54.506,
    "l": 45.686
  },
  "oklch": {
    "l": 0.497,
    "c": 0.14542,
    "h": 263.5
  },
  "luminance": 0.11881
}

Semantic roles & 50–950 ramp

primary

#355DB4

secondary

#C6AF7F

accent

#AF4ADE

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #355DB4

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

Preview Lab → · Contrast checker → · Palette generator →