#355CB9#355CB9

#355CB9 is a mid, vivid blue. Relative luminance 0.119; OKLCH L 49.8% C 0.154 H 264.4°. Best body text is #FFFFFF at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#355CB9
RGB	rgb(53, 92, 185)
HSL	hsl(222, 55%, 47%)
HSV	hsv(222, 71%, 73%)
CMYK	cmyk(71.4%, 50.3%, 0%, 27.5%)
CIE-LAB	lab(41.08, 18.35, -53.22)
CIE-LCH	lch(41.08, 56.30, 289.02°)
OKLab	oklab(49.85% -0.015 -0.1529)
OKLCH	oklch(49.85% 0.154 264.4)
XYZ	xyz(14.0492, 11.9125, 47.4485)
Luminance	0.1191 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355CB9 #B99235

analogous

#359EB9 #355CB9 #5035B9

triadic

#355CB9 #B9355C #5CB935

tetradic

#355CB9 #B9359E #B99235 #35B950

square

#355CB9 #B9359E #B99235 #35B950

split-complementary

#355CB9 #B95035 #9EB935

monochromatic

#1A2D5A #274489 #355CB9 #5B7ED0 #8BA3DE

Accessibility & contrast

On white

6.21

#355CB9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#355CB9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355CB9

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355CB9	#FFFFFF	#000000	##FFFFFF
##355CB9	1.00	6.21	3.38	6.21
#FFFFFF	6.21	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2567BC

Deuteranopia (green-blind)

#005BB7

Tritanopia (blue-blind)

#007282

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #355cb9;
/* rgb */ color: rgb(53, 92, 185);
/* oklch */ color: oklch(49.8% 0.154 264.4);

Tailwind

colors: {
  custom: {
    50: '#7d89cf',
    500: '#355cb9',
    950: '#000000',
  },
}

SCSS

$custom: #355cb9;
$custom-light: #7d89cf;
$custom-dark: #000000;

JSON

{
  "hex": "#355cb9",
  "rgb": {
    "r": 53,
    "g": 92,
    "b": 185
  },
  "hsl": {
    "h": 222.273,
    "s": 55.462,
    "l": 46.667
  },
  "oklch": {
    "l": 0.49846,
    "c": 0.15359,
    "h": 264.4
  },
  "luminance": 0.11914
}

Semantic roles & 50–950 ramp

primary

#355CB9

secondary

#C8B382

accent

#B349DF

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #355CB9

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

Preview Lab → · Contrast checker → · Palette generator →