#355BDF#355BDF

#355BDF is a mid, highly saturated blue. Relative luminance 0.136; OKLCH L 52.6% C 0.206 H 266.7°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#355BDF
RGB	rgb(53, 91, 223)
HSL	hsl(227, 73%, 54%)
HSV	hsv(227, 76%, 87%)
CMYK	cmyk(76.2%, 59.2%, 0%, 12.5%)
CIE-LAB	lab(43.60, 32.99, -71.03)
CIE-LCH	lch(43.60, 78.31, 294.91°)
OKLab	oklab(52.63% -0.0118 -0.2052)
OKLCH	oklch(52.63% 0.206 266.7)
XYZ	xyz(18.5239, 13.5647, 71.4397)
Luminance	0.1357 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355BDF #DFB935

analogous

#35B0DF #355BDF #6435DF

triadic

#355BDF #DF355B #5BDF35

tetradic

#355BDF #DF35B0 #DFB935 #35DF64

square

#355BDF #DF35B0 #DFB935 #35DF64

split-complementary

#355BDF #DF6435 #B0DF35

monochromatic

#152E85 #1D40B9 #355BDF #6A86E7 #9FB1F0

Accessibility & contrast

On white

5.66

#355BDF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#355BDF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355BDF

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355BDF	#FFFFFF	#000000	##FFFFFF
##355BDF	1.00	5.66	3.71	5.66
#FFFFFF	5.66	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006FE3

Deuteranopia (green-blind)

#005FDC

Tritanopia (blue-blind)

#007D94

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #355bdf;
/* rgb */ color: rgb(53, 91, 223);
/* oklch */ color: oklch(52.6% 0.206 266.7);

Tailwind

colors: {
  custom: {
    50: '#8589ea',
    500: '#355bdf',
    950: '#000000',
  },
}

SCSS

$custom: #355bdf;
$custom-light: #8589ea;
$custom-dark: #000000;

JSON

{
  "hex": "#355bdf",
  "rgb": {
    "r": 53,
    "g": 91,
    "b": 223
  },
  "hsl": {
    "h": 226.588,
    "s": 72.65,
    "l": 54.118
  },
  "oklch": {
    "l": 0.52627,
    "c": 0.20556,
    "h": 266.7
  },
  "luminance": 0.13567
}

Semantic roles & 50–950 ramp

primary

#355BDF

secondary

#DCCC94

accent

#C638EF

background

#F9F8FE

surface

#F1EFFD

border

#CBCAD5

text

#0D0B16

muted

#7E7C84

Preview Lab

Preview with #355BDF

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

Preview Lab → · Contrast checker → · Palette generator →