#557EDB#557EDB

#557EDB is a mid, vivid blue. Relative luminance 0.220; OKLCH L 60.8% C 0.149 H 264.5°. Best body text is #000000 at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#557EDB
RGB	rgb(85, 126, 219)
HSL	hsl(222, 65%, 60%)
HSV	hsv(222, 61%, 86%)
CMYK	cmyk(61.2%, 42.5%, 0%, 14.1%)
CIE-LAB	lab(53.99, 14.30, -51.92)
CIE-LCH	lch(53.99, 53.86, 285.40°)
OKLab	oklab(60.82% -0.0143 -0.1479)
OKLCH	oklch(60.82% 0.149 264.5)
XYZ	xyz(23.9889, 21.9654, 69.9797)
Luminance	0.2197 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557EDB #DBB255

analogous

#55C1DB #557EDB #6F55DB

triadic

#557EDB #DB557E #7EDB55

tetradic

#557EDB #DB55C1 #DBB255 #55DB6F

square

#557EDB #DB55C1 #DBB255 #55DB6F

split-complementary

#557EDB #DB6F55 #C1DB55

monochromatic

#204496 #2A5BC8 #557EDB #88A4E6 #BACBF0

Accessibility & contrast

On white

3.89

#557EDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.39

#557EDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557EDB

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557EDB	#FFFFFF	#000000	##000000
##557EDB	1.00	3.89	5.39	5.39
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.39	21.00	1.00	1.00
##000000	5.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5488DF

Deuteranopia (green-blind)

#407BD9

Tritanopia (blue-blind)

#0093A2

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #557edb;
/* rgb */ color: rgb(85, 126, 219);
/* oklch */ color: oklch(60.8% 0.149 264.5);

Tailwind

colors: {
  custom: {
    50: '#90a2e7',
    500: '#557edb',
    950: '#000000',
  },
}

SCSS

$custom: #557edb;
$custom-light: #90a2e7;
$custom-dark: #000000;

JSON

{
  "hex": "#557edb",
  "rgb": {
    "r": 85,
    "g": 126,
    "b": 219
  },
  "hsl": {
    "h": 221.642,
    "s": 65.049,
    "l": 59.608
  },
  "oklch": {
    "l": 0.60819,
    "c": 0.14864,
    "h": 264.5
  },
  "luminance": 0.21967
}

Semantic roles & 50–950 ramp

primary

#557EDB

secondary

#E0D0AC

accent

#B540E8

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #557EDB

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

Preview Lab → · Contrast checker → · Palette generator →