#355ABB#355ABB

#355ABB is a mid, vivid blue. Relative luminance 0.117; OKLCH L 49.6% C 0.159 H 265.3°. Best body text is #FFFFFF at 6.30:1 contrast (WCAG AA passes).

Color values

HEX	#355ABB
RGB	rgb(53, 90, 187)
HSL	hsl(223, 56%, 47%)
HSV	hsv(223, 72%, 73%)
CMYK	cmyk(71.7%, 51.9%, 0%, 26.7%)
CIE-LAB	lab(40.66, 20.39, -55.06)
CIE-LCH	lch(40.66, 58.71, 290.32°)
OKLab	oklab(49.58% -0.0131 -0.1583)
OKLCH	oklch(49.58% 0.159 265.3)
XYZ	xyz(14.0909, 11.6556, 48.5112)
Luminance	0.1166 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#355ABB #BB9635

analogous

#359DBB #355ABB #5335BB

triadic

#355ABB #BB355A #5ABB35

tetradic

#355ABB #BB359D #BB9635 #35BB53

square

#355ABB #BB359D #BB9635 #35BB53

split-complementary

#355ABB #BB5335 #9DBB35

monochromatic

#1A2C5C #27438B #355ABB #5C7DD1 #8CA3DE

Accessibility & contrast

On white

6.30

#355ABB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#355ABB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #355ABB

6.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##355ABB	#FFFFFF	#000000	##FFFFFF
##355ABB	1.00	6.30	3.33	6.30
#FFFFFF	6.30	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B66BE

Deuteranopia (green-blind)

#005AB9

Tritanopia (blue-blind)

#007182

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #355abb;
/* rgb */ color: rgb(53, 90, 187);
/* oklch */ color: oklch(49.6% 0.159 265.3);

Tailwind

colors: {
  custom: {
    50: '#7d88d0',
    500: '#355abb',
    950: '#000000',
  },
}

SCSS

$custom: #355abb;
$custom-light: #7d88d0;
$custom-dark: #000000;

JSON

{
  "hex": "#355abb",
  "rgb": {
    "r": 53,
    "g": 90,
    "b": 187
  },
  "hsl": {
    "h": 223.433,
    "s": 55.833,
    "l": 47.059
  },
  "oklch": {
    "l": 0.49575,
    "c": 0.15884,
    "h": 265.3
  },
  "luminance": 0.11657
}

Semantic roles & 50–950 ramp

primary

#355ABB

secondary

#C9B583

accent

#B649DF

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #355ABB

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

Preview Lab → · Contrast checker → · Palette generator →