#355EB7#355EB7

#355EB7 is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.1% C 0.148 H 263.4°. Best body text is #FFFFFF at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#355EB7
RGB	rgb(53, 94, 183)
HSL	hsl(221, 55%, 46%)
HSV	hsv(221, 71%, 72%)
CMYK	cmyk(71%, 48.6%, 0%, 28.2%)
CIE-LAB	lab(41.50, 16.31, -51.37)
CIE-LCH	lch(41.50, 53.90, 287.61°)
OKLab	oklab(50.13% -0.017 -0.1474)
OKLCH	oklch(50.13% 0.148 263.4)
XYZ	xyz(14.0151, 12.1797, 46.4029)
Luminance	0.1218 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355EB7 #B78E35

analogous

#359FB7 #355EB7 #4D35B7

triadic

#355EB7 #B7355E #5EB735

tetradic

#355EB7 #B7359F #B78E35 #35B74D

square

#355EB7 #B7359F #B78E35 #35B74D

split-complementary

#355EB7 #B74D35 #9FB735

monochromatic

#1A2D58 #274688 #355EB7 #5A7FCF #89A4DD

Accessibility & contrast

On white

6.11

#355EB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#355EB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355EB7

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355EB7	#FFFFFF	#000000	##FFFFFF
##355EB7	1.00	6.11	3.44	6.11
#FFFFFF	6.11	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D68BA

Deuteranopia (green-blind)

#055CB5

Tritanopia (blue-blind)

#007382

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #355eb7;
/* rgb */ color: rgb(53, 94, 183);
/* oklch */ color: oklch(50.1% 0.148 263.4);

Tailwind

colors: {
  custom: {
    50: '#7c8bcd',
    500: '#355eb7',
    950: '#000000',
  },
}

SCSS

$custom: #355eb7;
$custom-light: #7c8bcd;
$custom-dark: #000000;

JSON

{
  "hex": "#355eb7",
  "rgb": {
    "r": 53,
    "g": 94,
    "b": 183
  },
  "hsl": {
    "h": 221.077,
    "s": 55.085,
    "l": 46.275
  },
  "oklch": {
    "l": 0.50127,
    "c": 0.14836,
    "h": 263.4
  },
  "luminance": 0.12181
}

Semantic roles & 50–950 ramp

primary

#355EB7

secondary

#C7B181

accent

#AF49DE

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B13

muted

#7C7C82

Preview Lab

Preview with #355EB7

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

Preview Lab → · Contrast checker → · Palette generator →