#355FA3#355FA3

#355FA3 is a mid, moderate blue. Relative luminance 0.116; OKLCH L 49.0% C 0.119 H 259.6°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#355FA3
RGB	rgb(53, 95, 163)
HSL	hsl(217, 51%, 42%)
HSV	hsv(217, 67%, 64%)
CMYK	cmyk(67.5%, 41.7%, 0%, 36.1%)
CIE-LAB	lab(40.55, 8.26, -41.10)
CIE-LCH	lch(40.55, 41.93, 281.37°)
OKLab	oklab(48.99% -0.0215 -0.1172)
OKLCH	oklch(48.99% 0.119 259.6)
XYZ	xyz(12.1689, 11.5844, 36.2379)
Luminance	0.1159 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355FA3 #A37935

analogous

#3596A3 #355FA3 #4235A3

triadic

#355FA3 #A3355F #5FA335

tetradic

#355FA3 #A33596 #A37935 #35A342

square

#355FA3 #A33596 #A37935 #35A342

split-complementary

#355FA3 #A34235 #96A335

monochromatic

#172947 #264475 #355FA3 #4F7DC6 #7E9FD5

Accessibility & contrast

On white

6.33

#355FA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#355FA3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355FA3

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355FA3	#FFFFFF	#000000	##FFFFFF
##355FA3	1.00	6.33	3.32	6.33
#FFFFFF	6.33	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4065A6

Deuteranopia (green-blind)

#2F5BA2

Tritanopia (blue-blind)

#006F79

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #355fa3;
/* rgb */ color: rgb(53, 95, 163);
/* oklch */ color: oklch(49.0% 0.119 259.6);

Tailwind

colors: {
  custom: {
    50: '#788cbf',
    500: '#355fa3',
    950: '#000000',
  },
}

SCSS

$custom: #355fa3;
$custom-light: #788cbf;
$custom-dark: #000000;

JSON

{
  "hex": "#355fa3",
  "rgb": {
    "r": 53,
    "g": 95,
    "b": 163
  },
  "hsl": {
    "h": 217.091,
    "s": 50.926,
    "l": 42.353
  },
  "oklch": {
    "l": 0.48994,
    "c": 0.11915,
    "h": 259.6
  },
  "luminance": 0.11586
}

Semantic roles & 50–950 ramp

primary

#355FA3

secondary

#BEA276

accent

#A54DDA

background

#F7F8FB

surface

#EEF0F7

border

#C9CBD0

text

#0A0C12

muted

#7C7D81

Preview Lab

Preview with #355FA3

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

Preview Lab → · Contrast checker → · Palette generator →