#3553B8#3553B8

#3553B8 is a mid, vivid blue. Relative luminance 0.104; OKLCH L 47.9% C 0.163 H 267.4°. Best body text is #FFFFFF at 6.82:1 contrast (WCAG AA passes).

Color values

HEX	#3553B8
RGB	rgb(53, 83, 184)
HSL	hsl(226, 55%, 46%)
HSV	hsv(226, 71%, 72%)
CMYK	cmyk(71.2%, 54.9%, 0%, 27.8%)
CIE-LAB	lab(38.56, 23.84, -56.71)
CIE-LCH	lch(38.56, 61.52, 292.80°)
OKLab	oklab(47.91% -0.0075 -0.1633)
OKLCH	oklch(47.91% 0.163 267.4)
XYZ	xyz(13.2102, 10.4027, 46.6498)
Luminance	0.1040 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3553B8 #B89A35

analogous

#3595B8 #3553B8 #5935B8

triadic

#3553B8 #B83553 #53B835

tetradic

#3553B8 #B83595 #B89A35 #35B859

square

#3553B8 #B83595 #B89A35 #35B859

split-complementary

#3553B8 #B85935 #95B835

monochromatic

#1A2859 #273E88 #3553B8 #5B75D0 #8A9DDD

Accessibility & contrast

On white

6.82

#3553B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#3553B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3553B8

6.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3553B8	#FFFFFF	#000000	##FFFFFF
##3553B8	1.00	6.82	3.08	6.82
#FFFFFF	6.82	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061BC

Deuteranopia (green-blind)

#0055B6

Tritanopia (blue-blind)

#006B7D

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3553b8;
/* rgb */ color: rgb(53, 83, 184);
/* oklch */ color: oklch(47.9% 0.163 267.4);

Tailwind

colors: {
  custom: {
    50: '#7d82ce',
    500: '#3553b8',
    950: '#000000',
  },
}

SCSS

$custom: #3553b8;
$custom-light: #7d82ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3553b8",
  "rgb": {
    "r": 53,
    "g": 83,
    "b": 184
  },
  "hsl": {
    "h": 226.26,
    "s": 55.274,
    "l": 46.471
  },
  "oklch": {
    "l": 0.47914,
    "c": 0.16345,
    "h": 267.4
  },
  "luminance": 0.10404
}

Semantic roles & 50–950 ramp

primary

#3553B8

secondary

#C7B781

accent

#BC49DF

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3553B8

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

Preview Lab → · Contrast checker → · Palette generator →