#355DBB#355DBB

#355DBB is a mid, vivid blue. Relative luminance 0.122; OKLCH L 50.2% C 0.155 H 264.2°. Best body text is #FFFFFF at 6.11:1 contrast (WCAG AA passes).

Color values

HEX	#355DBB
RGB	rgb(53, 93, 187)
HSL	hsl(222, 56%, 47%)
HSV	hsv(222, 72%, 73%)
CMYK	cmyk(71.7%, 50.3%, 0%, 26.7%)
CIE-LAB	lab(41.49, 18.44, -53.73)
CIE-LCH	lch(41.49, 56.80, 288.94°)
OKLab	oklab(50.2% -0.0156 -0.1543)
OKLCH	oklch(50.2% 0.155 264.2)
XYZ	xyz(14.3490, 12.1719, 48.5973)
Luminance	0.1217 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355DBB #BB9335

analogous

#35A0BB #355DBB #5035BB

triadic

#355DBB #BB355D #5DBB35

tetradic

#355DBB #BB35A0 #BB9335 #35BB50

square

#355DBB #BB35A0 #BB9335 #35BB50

split-complementary

#355DBB #BB5035 #A0BB35

monochromatic

#1A2E5C #27458B #355DBB #5C7FD1 #8CA5DE

Accessibility & contrast

On white

6.11

#355DBB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#355DBB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355DBB

6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355DBB	#FFFFFF	#000000	##FFFFFF
##355DBB	1.00	6.11	3.43	6.11
#FFFFFF	6.11	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2568BE

Deuteranopia (green-blind)

#005CB9

Tritanopia (blue-blind)

#007383

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #355dbb;
/* rgb */ color: rgb(53, 93, 187);
/* oklch */ color: oklch(50.2% 0.155 264.2);

Tailwind

colors: {
  custom: {
    50: '#7d8ad0',
    500: '#355dbb',
    950: '#000000',
  },
}

SCSS

$custom: #355dbb;
$custom-light: #7d8ad0;
$custom-dark: #000000;

JSON

{
  "hex": "#355dbb",
  "rgb": {
    "r": 53,
    "g": 93,
    "b": 187
  },
  "hsl": {
    "h": 222.09,
    "s": 55.833,
    "l": 47.059
  },
  "oklch": {
    "l": 0.50202,
    "c": 0.15512,
    "h": 264.2
  },
  "luminance": 0.12173
}

Semantic roles & 50–950 ramp

primary

#355DBB

secondary

#C9B483

accent

#B249DF

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #355DBB

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

Preview Lab → · Contrast checker → · Palette generator →