#557ADD#557ADD

#557ADD is a mid, vivid blue. Relative luminance 0.211; OKLCH L 60.1% C 0.156 H 266.4°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#557ADD
RGB	rgb(85, 122, 221)
HSL	hsl(224, 67%, 60%)
HSV	hsv(224, 62%, 87%)
CMYK	cmyk(61.5%, 44.8%, 0%, 13.3%)
CIE-LAB	lab(53.02, 17.42, -54.59)
CIE-LCH	lch(53.02, 57.30, 287.70°)
OKLab	oklab(60.11% -0.0099 -0.1558)
OKLCH	oklch(60.11% 0.156 266.4)
XYZ	xyz(23.7525, 21.0687, 71.2075)
Luminance	0.2107 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557ADD #DDB855

analogous

#55BEDD #557ADD #7455DD

triadic

#557ADD #DD557A #7ADD55

tetradic

#557ADD #DD55BE #DDB855 #55DD74

square

#557ADD #DD55BE #DDB855 #55DD74

split-complementary

#557ADD #DD7455 #BEDD55

monochromatic

#1F4099 #2955CC #557ADD #88A2E7 #BBCAF1

Accessibility & contrast

On white

4.03

#557ADD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.21

#557ADD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557ADD

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557ADD	#FFFFFF	#000000	##000000
##557ADD	1.00	4.03	5.21	5.21
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.21	21.00	1.00	1.00
##000000	5.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B85E1

Deuteranopia (green-blind)

#3579DB

Tritanopia (blue-blind)

#0090A1

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #557add;
/* rgb */ color: rgb(85, 122, 221);
/* oklch */ color: oklch(60.1% 0.156 266.4);

Tailwind

colors: {
  custom: {
    50: '#91a0e8',
    500: '#557add',
    950: '#000000',
  },
}

SCSS

$custom: #557add;
$custom-light: #91a0e8;
$custom-dark: #000000;

JSON

{
  "hex": "#557add",
  "rgb": {
    "r": 85,
    "g": 122,
    "b": 221
  },
  "hsl": {
    "h": 223.676,
    "s": 66.667,
    "l": 60
  },
  "oklch": {
    "l": 0.60115,
    "c": 0.15615,
    "h": 266.4
  },
  "luminance": 0.21071
}

Semantic roles & 50–950 ramp

primary

#557ADD

secondary

#E1D3AD

accent

#BB3EEA

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #557ADD

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

Preview Lab → · Contrast checker → · Palette generator →