#355DA3#355DA3

#355DA3 is a mid, vivid blue. Relative luminance 0.112; OKLCH L 48.5% C 0.122 H 260.8°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#355DA3
RGB	rgb(53, 93, 163)
HSL	hsl(218, 51%, 42%)
HSV	hsv(218, 67%, 64%)
CMYK	cmyk(67.5%, 42.9%, 0%, 36.1%)
CIE-LAB	lab(39.96, 9.55, -42.04)
CIE-LCH	lch(39.96, 43.11, 282.80°)
OKLab	oklab(48.54% -0.0195 -0.1199)
OKLCH	oklch(48.54% 0.122 260.8)
XYZ	xyz(11.9911, 11.2287, 36.1787)
Luminance	0.1123 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355DA3 #A37B35

analogous

#3594A3 #355DA3 #4435A3

triadic

#355DA3 #A3355D #5DA335

tetradic

#355DA3 #A33594 #A37B35 #35A344

square

#355DA3 #A33594 #A37B35 #35A344

split-complementary

#355DA3 #A34435 #94A335

monochromatic

#172847 #264375 #355DA3 #4F7AC6 #7E9DD5

Accessibility & contrast

On white

6.47

#355DA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#355DA3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355DA3

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355DA3	#FFFFFF	#000000	##FFFFFF
##355DA3	1.00	6.47	3.25	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C64A6

Deuteranopia (green-blind)

#2B59A2

Tritanopia (blue-blind)

#006D78

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #355da3;
/* rgb */ color: rgb(53, 93, 163);
/* oklch */ color: oklch(48.5% 0.122 260.8);

Tailwind

colors: {
  custom: {
    50: '#788abf',
    500: '#355da3',
    950: '#000000',
  },
}

SCSS

$custom: #355da3;
$custom-light: #788abf;
$custom-dark: #000000;

JSON

{
  "hex": "#355da3",
  "rgb": {
    "r": 53,
    "g": 93,
    "b": 163
  },
  "hsl": {
    "h": 218.182,
    "s": 50.926,
    "l": 42.353
  },
  "oklch": {
    "l": 0.48542,
    "c": 0.12152,
    "h": 260.8
  },
  "luminance": 0.1123
}

Semantic roles & 50–950 ramp

primary

#355DA3

secondary

#BEA476

accent

#A74DDA

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #355DA3

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

Preview Lab → · Contrast checker → · Palette generator →