#3554BB#3554BB

#3554BB is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.4% C 0.166 H 267.2°. Best body text is #FFFFFF at 6.69:1 contrast (WCAG AA passes).

Color values

HEX	#3554BB
RGB	rgb(53, 84, 187)
HSL	hsl(226, 56%, 47%)
HSV	hsv(226, 72%, 73%)
CMYK	cmyk(71.7%, 55.1%, 0%, 26.7%)
CIE-LAB	lab(39.04, 24.30, -57.68)
CIE-LCH	lch(39.04, 62.59, 292.84°)
OKLab	oklab(48.35% -0.0081 -0.1661)
OKLCH	oklch(48.35% 0.166 267.2)
XYZ	xyz(13.6050, 10.6840, 48.3493)
Luminance	0.1069 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3554BB #BB9C35

analogous

#3597BB #3554BB #5935BB

triadic

#3554BB #BB3554 #54BB35

tetradic

#3554BB #BB3597 #BB9C35 #35BB59

square

#3554BB #BB3597 #BB9C35 #35BB59

split-complementary

#3554BB #BB5935 #97BB35

monochromatic

#1A295C #273F8B #3554BB #5C77D1 #8C9FDE

Accessibility & contrast

On white

6.69

#3554BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#3554BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3554BB

6.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3554BB	#FFFFFF	#000000	##FFFFFF
##3554BB	1.00	6.69	3.14	6.69
#FFFFFF	6.69	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062BF

Deuteranopia (green-blind)

#0056B9

Tritanopia (blue-blind)

#006D7F

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #3554bb;
/* rgb */ color: rgb(53, 84, 187);
/* oklch */ color: oklch(48.4% 0.166 267.2);

Tailwind

colors: {
  custom: {
    50: '#7e83d0',
    500: '#3554bb',
    950: '#000000',
  },
}

SCSS

$custom: #3554bb;
$custom-light: #7e83d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3554bb",
  "rgb": {
    "r": 53,
    "g": 84,
    "b": 187
  },
  "hsl": {
    "h": 226.119,
    "s": 55.833,
    "l": 47.059
  },
  "oklch": {
    "l": 0.4835,
    "c": 0.16631,
    "h": 267.2
  },
  "luminance": 0.10685
}

Semantic roles & 50–950 ramp

primary

#3554BB

secondary

#C9B983

accent

#BC49DF

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3554BB

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

Preview Lab → · Contrast checker → · Palette generator →