#355EB4#355EB4

#355EB4 is a mid, vivid blue. Relative luminance 0.121; OKLCH L 49.9% C 0.144 H 263.0°. Best body text is #FFFFFF at 6.16:1 contrast (WCAG AA passes).

Color values

HEX	#355EB4
RGB	rgb(53, 94, 180)
HSL	hsl(221, 55%, 46%)
HSV	hsv(221, 71%, 71%)
CMYK	cmyk(70.6%, 47.8%, 0%, 29.4%)
CIE-LAB	lab(41.31, 15.19, -49.93)
CIE-LCH	lch(41.31, 52.19, 286.93°)
OKLab	oklab(49.92% -0.0175 -0.1431)
OKLCH	oklch(49.92% 0.144 263)
XYZ	xyz(13.7062, 12.0562, 44.7759)
Luminance	0.1206 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355EB4 #B48B35

analogous

#359DB4 #355EB4 #4C35B4

triadic

#355EB4 #B4355E #5EB435

tetradic

#355EB4 #B4359D #B48B35 #35B44C

square

#355EB4 #B4359D #B48B35 #35B44C

split-complementary

#355EB4 #B44C35 #9DB435

monochromatic

#192D55 #274585 #355EB4 #587ECE #88A3DC

Accessibility & contrast

On white

6.16

#355EB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#355EB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355EB4

6.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355EB4	#FFFFFF	#000000	##FFFFFF
##355EB4	1.00	6.16	3.41	6.16
#FFFFFF	6.16	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3068B7

Deuteranopia (green-blind)

#105CB2

Tritanopia (blue-blind)

#007280

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #355eb4;
/* rgb */ color: rgb(53, 94, 180);
/* oklch */ color: oklch(49.9% 0.144 263.0);

Tailwind

colors: {
  custom: {
    50: '#7c8bcb',
    500: '#355eb4',
    950: '#000000',
  },
}

SCSS

$custom: #355eb4;
$custom-light: #7c8bcb;
$custom-dark: #000000;

JSON

{
  "hex": "#355eb4",
  "rgb": {
    "r": 53,
    "g": 94,
    "b": 180
  },
  "hsl": {
    "h": 220.63,
    "s": 54.506,
    "l": 45.686
  },
  "oklch": {
    "l": 0.49915,
    "c": 0.14419,
    "h": 263
  },
  "luminance": 0.12058
}

Semantic roles & 50–950 ramp

primary

#355EB4

secondary

#C6AF7F

accent

#AE4ADE

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #355EB4

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

Preview Lab → · Contrast checker → · Palette generator →