#355FB3#355FB3

#355FB3 is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.1% C 0.142 H 262.5°. Best body text is #FFFFFF at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#355FB3
RGB	rgb(53, 95, 179)
HSL	hsl(220, 54%, 45%)
HSV	hsv(220, 70%, 70%)
CMYK	cmyk(70.4%, 46.9%, 0%, 29.8%)
CIE-LAB	lab(41.52, 14.17, -48.99)
CIE-LCH	lch(41.52, 51.00, 286.14°)
OKLab	oklab(50.06% -0.0185 -0.1403)
OKLCH	oklch(50.06% 0.142 262.5)
XYZ	xyz(13.6942, 12.1946, 44.2712)
Luminance	0.1220 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355FB3 #B38935

analogous

#359EB3 #355FB3 #4A35B3

triadic

#355FB3 #B3355F #5FB335

tetradic

#355FB3 #B3359E #B38935 #35B34A

square

#355FB3 #B3359E #B38935 #35B34A

split-complementary

#355FB3 #B34A35 #9EB335

monochromatic

#192D55 #274684 #355FB3 #587FCD #87A3DB

Accessibility & contrast

On white

6.11

#355FB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#355FB3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355FB3

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355FB3	#FFFFFF	#000000	##FFFFFF
##355FB3	1.00	6.11	3.44	6.11
#FFFFFF	6.11	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3368B6

Deuteranopia (green-blind)

#175DB1

Tritanopia (blue-blind)

#007380

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #355fb3;
/* rgb */ color: rgb(53, 95, 179);
/* oklch */ color: oklch(50.1% 0.142 262.5);

Tailwind

colors: {
  custom: {
    50: '#7b8bca',
    500: '#355fb3',
    950: '#000000',
  },
}

SCSS

$custom: #355fb3;
$custom-light: #7b8bca;
$custom-dark: #000000;

JSON

{
  "hex": "#355fb3",
  "rgb": {
    "r": 53,
    "g": 95,
    "b": 179
  },
  "hsl": {
    "h": 220,
    "s": 54.31,
    "l": 45.49
  },
  "oklch": {
    "l": 0.50062,
    "c": 0.14157,
    "h": 262.5
  },
  "luminance": 0.12196
}

Semantic roles & 50–950 ramp

primary

#355FB3

secondary

#C5AE7F

accent

#AC4ADE

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #355FB3

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

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