#355AA8#355AA8

#355AA8 is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.2% C 0.132 H 263.2°. Best body text is #FFFFFF at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#355AA8
RGB	rgb(53, 90, 168)
HSL	hsl(221, 52%, 43%)
HSV	hsv(221, 68%, 66%)
CMYK	cmyk(68.5%, 46.4%, 0%, 34.1%)
CIE-LAB	lab(39.40, 13.34, -45.90)
CIE-LCH	lch(39.40, 47.80, 286.21°)
OKLab	oklab(48.21% -0.0156 -0.1314)
OKLCH	oklch(48.21% 0.132 263.2)
XYZ	xyz(12.1898, 10.8952, 38.4988)
Luminance	0.1090 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355AA8 #A88335

analogous

#3593A8 #355AA8 #4A35A8

triadic

#355AA8 #A8355A #5AA835

tetradic

#355AA8 #A83593 #A88335 #35A84A

square

#355AA8 #A83593 #A88335 #35A84A

split-complementary

#355AA8 #A84A35 #93A835

monochromatic

#18284B #264179 #355AA8 #5278C8 #809CD7

Accessibility & contrast

On white

6.61

#355AA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#355AA8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355AA8

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355AA8	#FFFFFF	#000000	##FFFFFF
##355AA8	1.00	6.61	3.18	6.61
#FFFFFF	6.61	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3362AB

Deuteranopia (green-blind)

#1C58A6

Tritanopia (blue-blind)

#006C79

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #355aa8;
/* rgb */ color: rgb(53, 90, 168);
/* oklch */ color: oklch(48.2% 0.132 263.2);

Tailwind

colors: {
  custom: {
    50: '#7988c2',
    500: '#355aa8',
    950: '#000000',
  },
}

SCSS

$custom: #355aa8;
$custom-light: #7988c2;
$custom-dark: #000000;

JSON

{
  "hex": "#355aa8",
  "rgb": {
    "r": 53,
    "g": 90,
    "b": 168
  },
  "hsl": {
    "h": 220.696,
    "s": 52.036,
    "l": 43.333
  },
  "oklch": {
    "l": 0.4821,
    "c": 0.13228,
    "h": 263.2
  },
  "luminance": 0.10896
}

Semantic roles & 50–950 ramp

primary

#355AA8

secondary

#C0A978

accent

#AD4CDB

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #355AA8

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

Preview Lab → · Contrast checker → · Palette generator →