#557CDA#557CDA

#557CDA is a mid, vivid blue. Relative luminance 0.214; OKLCH L 60.3% C 0.150 H 265.2°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#557CDA
RGB	rgb(85, 124, 218)
HSL	hsl(222, 64%, 59%)
HSV	hsv(222, 61%, 85%)
CMYK	cmyk(61%, 43.1%, 0%, 14.5%)
CIE-LAB	lab(53.39, 15.18, -52.32)
CIE-LCH	lch(53.39, 54.48, 286.18°)
OKLab	oklab(60.34% -0.0124 -0.1491)
OKLCH	oklch(60.34% 0.15 265.2)
XYZ	xyz(23.6045, 21.4065, 69.2040)
Luminance	0.2141 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557CDA #DAB355

analogous

#55BFDA #557CDA #7155DA

triadic

#557CDA #DA557C #7CDA55

tetradic

#557CDA #DA55BF #DAB355 #55DA71

square

#557CDA #DA55BF #DAB355 #55DA71

split-complementary

#557CDA #DA7155 #BFDA55

monochromatic

#204294 #2B59C7 #557CDA #87A3E5 #BAC9F0

Accessibility & contrast

On white

3.98

#557CDA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#557CDA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557CDA

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557CDA	#FFFFFF	#000000	##000000
##557CDA	1.00	3.98	5.28	5.28
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.28	21.00	1.00	1.00
##000000	5.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5186DE

Deuteranopia (green-blind)

#3D7AD8

Tritanopia (blue-blind)

#0091A0

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #557cda;
/* rgb */ color: rgb(85, 124, 218);
/* oklch */ color: oklch(60.3% 0.150 265.2);

Tailwind

colors: {
  custom: {
    50: '#90a1e6',
    500: '#557cda',
    950: '#000000',
  },
}

SCSS

$custom: #557cda;
$custom-light: #90a1e6;
$custom-dark: #000000;

JSON

{
  "hex": "#557cda",
  "rgb": {
    "r": 85,
    "g": 124,
    "b": 218
  },
  "hsl": {
    "h": 222.406,
    "s": 64.251,
    "l": 59.412
  },
  "oklch": {
    "l": 0.60341,
    "c": 0.14964,
    "h": 265.2
  },
  "luminance": 0.21409
}

Semantic roles & 50–950 ramp

primary

#557CDA

secondary

#DFD0AB

accent

#B641E7

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #557CDA

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

Preview Lab → · Contrast checker → · Palette generator →