#355DA4#355DA4

#355DA4 is a mid, vivid blue. Relative luminance 0.113; OKLCH L 48.6% C 0.123 H 261.0°. Best body text is #FFFFFF at 6.46:1 contrast (WCAG AA passes).

Color values

HEX	#355DA4
RGB	rgb(53, 93, 164)
HSL	hsl(218, 51%, 43%)
HSV	hsv(218, 68%, 64%)
CMYK	cmyk(67.7%, 43.3%, 0%, 35.7%)
CIE-LAB	lab(40.02, 9.92, -42.54)
CIE-LCH	lch(40.02, 43.68, 283.13°)
OKLab	oklab(48.61% -0.0193 -0.1214)
OKLCH	oklch(48.61% 0.123 261)
XYZ	xyz(12.0810, 11.2647, 36.6524)
Luminance	0.1127 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355DA4 #A47C35

analogous

#3595A4 #355DA4 #4435A4

triadic

#355DA4 #A4355D #5DA435

tetradic

#355DA4 #A43595 #A47C35 #35A444

square

#355DA4 #A43595 #A47C35 #35A444

split-complementary

#355DA4 #A44435 #95A435

monochromatic

#172947 #264376 #355DA4 #507BC6 #7E9ED5

Accessibility & contrast

On white

6.46

#355DA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#355DA4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355DA4

6.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355DA4	#FFFFFF	#000000	##FFFFFF
##355DA4	1.00	6.46	3.25	6.46
#FFFFFF	6.46	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C64A7

Deuteranopia (green-blind)

#295AA3

Tritanopia (blue-blind)

#006D78

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #355da4;
/* rgb */ color: rgb(53, 93, 164);
/* oklch */ color: oklch(48.6% 0.123 261.0);

Tailwind

colors: {
  custom: {
    50: '#798abf',
    500: '#355da4',
    950: '#000000',
  },
}

SCSS

$custom: #355da4;
$custom-light: #798abf;
$custom-dark: #000000;

JSON

{
  "hex": "#355da4",
  "rgb": {
    "r": 53,
    "g": 93,
    "b": 164
  },
  "hsl": {
    "h": 218.378,
    "s": 51.152,
    "l": 42.549
  },
  "oklch": {
    "l": 0.48607,
    "c": 0.12294,
    "h": 261
  },
  "luminance": 0.11266
}

Semantic roles & 50–950 ramp

primary

#355DA4

secondary

#BEA476

accent

#A84DDB

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #355DA4

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

Preview Lab → · Contrast checker → · Palette generator →