#355FB7#355FB7

#355FB7 is a mid, vivid blue. Relative luminance 0.124; OKLCH L 50.3% C 0.147 H 263.0°. Best body text is #FFFFFF at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#355FB7
RGB	rgb(53, 95, 183)
HSL	hsl(221, 55%, 46%)
HSV	hsv(221, 71%, 72%)
CMYK	cmyk(71%, 48.1%, 0%, 28.2%)
CIE-LAB	lab(41.78, 15.66, -50.92)
CIE-LCH	lch(41.78, 53.27, 287.10°)
OKLab	oklab(50.34% -0.0179 -0.146)
OKLCH	oklch(50.34% 0.147 263)
XYZ	xyz(14.1046, 12.3587, 46.4327)
Luminance	0.1236 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355FB7 #B78D35

analogous

#35A0B7 #355FB7 #4C35B7

triadic

#355FB7 #B7355F #5FB735

tetradic

#355FB7 #B735A0 #B78D35 #35B74C

square

#355FB7 #B735A0 #B78D35 #35B74C

split-complementary

#355FB7 #B74C35 #A0B735

monochromatic

#1A2E58 #274688 #355FB7 #5A80CF #89A4DD

Accessibility & contrast

On white

6.05

#355FB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#355FB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355FB7

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355FB7	#FFFFFF	#000000	##FFFFFF
##355FB7	1.00	6.05	3.47	6.05
#FFFFFF	6.05	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F69BA

Deuteranopia (green-blind)

#0C5DB5

Tritanopia (blue-blind)

#007482

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #355fb7;
/* rgb */ color: rgb(53, 95, 183);
/* oklch */ color: oklch(50.3% 0.147 263.0);

Tailwind

colors: {
  custom: {
    50: '#7c8bcd',
    500: '#355fb7',
    950: '#000000',
  },
}

SCSS

$custom: #355fb7;
$custom-light: #7c8bcd;
$custom-dark: #000000;

JSON

{
  "hex": "#355fb7",
  "rgb": {
    "r": 53,
    "g": 95,
    "b": 183
  },
  "hsl": {
    "h": 220.615,
    "s": 55.085,
    "l": 46.275
  },
  "oklch": {
    "l": 0.50341,
    "c": 0.14713,
    "h": 263
  },
  "luminance": 0.1236
}

Semantic roles & 50–950 ramp

primary

#355FB7

secondary

#C7B081

accent

#AE49DE

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #355FB7

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

Preview Lab → · Contrast checker → · Palette generator →