#355EA8#355EA8

#355EA8 is a mid, vivid blue. Relative luminance 0.116; OKLCH L 49.1% C 0.127 H 261.2°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#355EA8
RGB	rgb(53, 94, 168)
HSL	hsl(219, 52%, 43%)
HSV	hsv(219, 68%, 66%)
CMYK	cmyk(68.5%, 44%, 0%, 34.1%)
CIE-LAB	lab(40.55, 10.75, -44.06)
CIE-LCH	lch(40.55, 45.35, 283.71°)
OKLab	oklab(49.1% -0.0195 -0.1259)
OKLCH	oklch(49.1% 0.127 261.2)
XYZ	xyz(12.5363, 11.5882, 38.6143)
Luminance	0.1159 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355EA8 #A87F35

analogous

#3597A8 #355EA8 #4635A8

triadic

#355EA8 #A8355E #5EA835

tetradic

#355EA8 #A83597 #A87F35 #35A846

square

#355EA8 #A83597 #A87F35 #35A846

split-complementary

#355EA8 #A84635 #97A835

monochromatic

#182A4B #264479 #355EA8 #527CC8 #809FD7

Accessibility & contrast

On white

6.33

#355EA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#355EA8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355EA8

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355EA8	#FFFFFF	#000000	##FFFFFF
##355EA8	1.00	6.33	3.32	6.33
#FFFFFF	6.33	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A65AB

Deuteranopia (green-blind)

#275BA6

Tritanopia (blue-blind)

#006F7B

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #355ea8;
/* rgb */ color: rgb(53, 94, 168);
/* oklch */ color: oklch(49.1% 0.127 261.2);

Tailwind

colors: {
  custom: {
    50: '#798bc2',
    500: '#355ea8',
    950: '#000000',
  },
}

SCSS

$custom: #355ea8;
$custom-light: #798bc2;
$custom-dark: #000000;

JSON

{
  "hex": "#355ea8",
  "rgb": {
    "r": 53,
    "g": 94,
    "b": 168
  },
  "hsl": {
    "h": 218.609,
    "s": 52.036,
    "l": 43.333
  },
  "oklch": {
    "l": 0.49095,
    "c": 0.12738,
    "h": 261.2
  },
  "luminance": 0.11589
}

Semantic roles & 50–950 ramp

primary

#355EA8

secondary

#C0A778

accent

#A84CDB

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #355EA8

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

Preview Lab → · Contrast checker → · Palette generator →