#355AB7#355AB7

#355AB7 is a mid, vivid blue. Relative luminance 0.115; OKLCH L 49.3% C 0.153 H 264.9°. Best body text is #FFFFFF at 6.37:1 contrast (WCAG AA passes).

Color values

HEX	#355AB7
RGB	rgb(53, 90, 183)
HSL	hsl(223, 55%, 46%)
HSV	hsv(223, 71%, 72%)
CMYK	cmyk(71%, 50.8%, 0%, 28.2%)
CIE-LAB	lab(40.39, 18.90, -53.16)
CIE-LCH	lch(40.39, 56.42, 289.58°)
OKLab	oklab(49.28% -0.0135 -0.1527)
OKLCH	oklch(49.28% 0.153 264.9)
XYZ	xyz(13.6686, 11.4867, 46.2874)
Luminance	0.1149 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355AB7 #B79235

analogous

#359BB7 #355AB7 #5135B7

triadic

#355AB7 #B7355A #5AB735

tetradic

#355AB7 #B7359B #B79235 #35B751

square

#355AB7 #B7359B #B79235 #35B751

split-complementary

#355AB7 #B75135 #9BB735

monochromatic

#1A2B58 #274388 #355AB7 #5A7BCF #89A1DD

Accessibility & contrast

On white

6.37

#355AB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#355AB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355AB7

6.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355AB7	#FFFFFF	#000000	##FFFFFF
##355AB7	1.00	6.37	3.30	6.37
#FFFFFF	6.37	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2265BA

Deuteranopia (green-blind)

#005AB5

Tritanopia (blue-blind)

#007080

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #355ab7;
/* rgb */ color: rgb(53, 90, 183);
/* oklch */ color: oklch(49.3% 0.153 264.9);

Tailwind

colors: {
  custom: {
    50: '#7c88cd',
    500: '#355ab7',
    950: '#000000',
  },
}

SCSS

$custom: #355ab7;
$custom-light: #7c88cd;
$custom-dark: #000000;

JSON

{
  "hex": "#355ab7",
  "rgb": {
    "r": 53,
    "g": 90,
    "b": 183
  },
  "hsl": {
    "h": 222.923,
    "s": 55.085,
    "l": 46.275
  },
  "oklch": {
    "l": 0.49279,
    "c": 0.15332,
    "h": 264.9
  },
  "luminance": 0.11488
}

Semantic roles & 50–950 ramp

primary

#355AB7

secondary

#C7B381

accent

#B449DE

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #355AB7

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

Preview Lab → · Contrast checker → · Palette generator →