#355BA3#355BA3

#355BA3 is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.1% C 0.124 H 261.9°. Best body text is #FFFFFF at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#355BA3
RGB	rgb(53, 91, 163)
HSL	hsl(219, 51%, 42%)
HSV	hsv(219, 67%, 64%)
CMYK	cmyk(67.5%, 44.2%, 0%, 36.1%)
CIE-LAB	lab(39.38, 10.84, -42.97)
CIE-LCH	lch(39.38, 44.31, 284.17°)
OKLab	oklab(48.09% -0.0175 -0.1227)
OKLCH	oklch(48.09% 0.124 261.9)
XYZ	xyz(11.8178, 10.8822, 36.1209)
Luminance	0.1088 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355BA3 #A37D35

analogous

#3592A3 #355BA3 #4635A3

triadic

#355BA3 #A3355B #5BA335

tetradic

#355BA3 #A33592 #A37D35 #35A346

square

#355BA3 #A33592 #A37D35 #35A346

split-complementary

#355BA3 #A34635 #92A335

monochromatic

#172747 #264175 #355BA3 #4F78C6 #7E9CD5

Accessibility & contrast

On white

6.61

#355BA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#355BA3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355BA3

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355BA3	#FFFFFF	#000000	##FFFFFF
##355BA3	1.00	6.61	3.18	6.61
#FFFFFF	6.61	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3962A6

Deuteranopia (green-blind)

#2658A2

Tritanopia (blue-blind)

#006C77

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #355ba3;
/* rgb */ color: rgb(53, 91, 163);
/* oklch */ color: oklch(48.1% 0.124 261.9);

Tailwind

colors: {
  custom: {
    50: '#7888bf',
    500: '#355ba3',
    950: '#000000',
  },
}

SCSS

$custom: #355ba3;
$custom-light: #7888bf;
$custom-dark: #000000;

JSON

{
  "hex": "#355ba3",
  "rgb": {
    "r": 53,
    "g": 91,
    "b": 163
  },
  "hsl": {
    "h": 219.273,
    "s": 50.926,
    "l": 42.353
  },
  "oklch": {
    "l": 0.48093,
    "c": 0.12395,
    "h": 261.9
  },
  "luminance": 0.10883
}

Semantic roles & 50–950 ramp

primary

#355BA3

secondary

#BEA576

accent

#AA4DDA

background

#F7F8FB

surface

#EEEFF7

border

#C9CAD0

text

#0A0B12

muted

#7C7C81

Preview Lab

Preview with #355BA3

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

Preview Lab → · Contrast checker → · Palette generator →