#355AB4#355AB4

#355AB4 is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.1% C 0.149 H 264.7°. Best body text is #FFFFFF at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#355AB4
RGB	rgb(53, 90, 180)
HSL	hsl(223, 55%, 46%)
HSV	hsv(223, 71%, 71%)
CMYK	cmyk(70.6%, 50%, 0%, 29.4%)
CIE-LAB	lab(40.19, 17.79, -51.73)
CIE-LCH	lch(40.19, 54.70, 288.98°)
OKLab	oklab(49.06% -0.0139 -0.1485)
OKLCH	oklch(49.06% 0.149 264.7)
XYZ	xyz(13.3597, 11.3631, 44.6604)
Luminance	0.1137 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355AB4 #B48F35

analogous

#3599B4 #355AB4 #5035B4

triadic

#355AB4 #B4355A #5AB435

tetradic

#355AB4 #B43599 #B48F35 #35B450

square

#355AB4 #B43599 #B48F35 #35B450

split-complementary

#355AB4 #B45035 #99B435

monochromatic

#192B55 #274285 #355AB4 #587BCE #88A0DC

Accessibility & contrast

On white

6.42

#355AB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#355AB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355AB4

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355AB4	#FFFFFF	#000000	##FFFFFF
##355AB4	1.00	6.42	3.27	6.42
#FFFFFF	6.42	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2665B7

Deuteranopia (green-blind)

#0059B2

Tritanopia (blue-blind)

#006F7E

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #355ab4;
/* rgb */ color: rgb(53, 90, 180);
/* oklch */ color: oklch(49.1% 0.149 264.7);

Tailwind

colors: {
  custom: {
    50: '#7c88cb',
    500: '#355ab4',
    950: '#000000',
  },
}

SCSS

$custom: #355ab4;
$custom-light: #7c88cb;
$custom-dark: #000000;

JSON

{
  "hex": "#355ab4",
  "rgb": {
    "r": 53,
    "g": 90,
    "b": 180
  },
  "hsl": {
    "h": 222.52,
    "s": 54.506,
    "l": 45.686
  },
  "oklch": {
    "l": 0.49059,
    "c": 0.14915,
    "h": 264.7
  },
  "luminance": 0.11365
}

Semantic roles & 50–950 ramp

primary

#355AB4

secondary

#C6B17F

accent

#B34ADE

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #355AB4

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

Preview Lab → · Contrast checker → · Palette generator →