#557CD9#557CD9

#557CD9 is a mid, vivid blue. Relative luminance 0.214; OKLCH L 60.3% C 0.148 H 265.1°. Best body text is #000000 at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#557CD9
RGB	rgb(85, 124, 217)
HSL	hsl(222, 63%, 59%)
HSV	hsv(222, 61%, 85%)
CMYK	cmyk(60.8%, 42.9%, 0%, 14.9%)
CIE-LAB	lab(53.34, 14.85, -51.84)
CIE-LCH	lch(53.34, 53.93, 285.98°)
OKLab	oklab(60.28% -0.0126 -0.1477)
OKLCH	oklch(60.28% 0.148 265.1)
XYZ	xyz(23.4740, 21.3543, 68.5169)
Luminance	0.2136 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557CD9 #D9B255

analogous

#55BED9 #557CD9 #7055D9

triadic

#557CD9 #D9557C #7CD955

tetradic

#557CD9 #D955BE #D9B255 #55D970

square

#557CD9 #D955BE #D9B255 #55D970

split-complementary

#557CD9 #D97055 #BED955

monochromatic

#214293 #2C59C5 #557CD9 #87A3E4 #B9C9EF

Accessibility & contrast

On white

3.98

#557CD9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.27

#557CD9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557CD9

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557CD9	#FFFFFF	#000000	##000000
##557CD9	1.00	3.98	5.27	5.27
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.27	21.00	1.00	1.00
##000000	5.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5286DD

Deuteranopia (green-blind)

#3E7AD7

Tritanopia (blue-blind)

#0091A0

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #557cd9;
/* rgb */ color: rgb(85, 124, 217);
/* oklch */ color: oklch(60.3% 0.148 265.1);

Tailwind

colors: {
  custom: {
    50: '#90a1e5',
    500: '#557cd9',
    950: '#000000',
  },
}

SCSS

$custom: #557cd9;
$custom-light: #90a1e5;
$custom-dark: #000000;

JSON

{
  "hex": "#557cd9",
  "rgb": {
    "r": 85,
    "g": 124,
    "b": 217
  },
  "hsl": {
    "h": 222.273,
    "s": 63.462,
    "l": 59.216
  },
  "oklch": {
    "l": 0.60279,
    "c": 0.14827,
    "h": 265.1
  },
  "luminance": 0.21356
}

Semantic roles & 50–950 ramp

primary

#557CD9

secondary

#DFCFAB

accent

#B641E6

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #557CD9

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

Preview Lab → · Contrast checker → · Palette generator →