#557CE7#557CE7

#557CE7 is a mid, vivid blue. Relative luminance 0.221; OKLCH L 61.2% C 0.167 H 266.5°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#557CE7
RGB	rgb(85, 124, 231)
HSL	hsl(224, 75%, 62%)
HSV	hsv(224, 63%, 91%)
CMYK	cmyk(63.2%, 46.3%, 0%, 9.4%)
CIE-LAB	lab(54.15, 19.58, -58.40)
CIE-LCH	lch(54.15, 61.60, 288.54°)
OKLab	oklab(61.16% -0.0103 -0.167)
OKLCH	oklch(61.16% 0.167 266.5)
XYZ	xyz(25.3728, 22.1138, 78.5171)
Luminance	0.2212 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557CE7 #E7C055

analogous

#55C5E7 #557CE7 #7755E7

triadic

#557CE7 #E7557C #7CE755

tetradic

#557CE7 #E755C5 #E7C055 #55E777

square

#557CE7 #E755C5 #E7C055 #55E777

split-complementary

#557CE7 #E77755 #C5E755

monochromatic

#183FAA #2053DF #557CE7 #8BA5EF #C0CFF6

Accessibility & contrast

On white

3.87

#557CE7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.42

#557CE7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557CE7

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557CE7	#FFFFFF	#000000	##000000
##557CE7	1.00	3.87	5.42	5.42
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.42	21.00	1.00	1.00
##000000	5.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4788EB

Deuteranopia (green-blind)

#2B7BE5

Tritanopia (blue-blind)

#0095A6

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #557ce7;
/* rgb */ color: rgb(85, 124, 231);
/* oklch */ color: oklch(61.2% 0.167 266.5);

Tailwind

colors: {
  custom: {
    50: '#92a1ef',
    500: '#557ce7',
    950: '#000000',
  },
}

SCSS

$custom: #557ce7;
$custom-light: #92a1ef;
$custom-dark: #000000;

JSON

{
  "hex": "#557ce7",
  "rgb": {
    "r": 85,
    "g": 124,
    "b": 231
  },
  "hsl": {
    "h": 223.973,
    "s": 75.258,
    "l": 61.961
  },
  "oklch": {
    "l": 0.61164,
    "c": 0.16734,
    "h": 266.5
  },
  "luminance": 0.22116
}

Semantic roles & 50–950 ramp

primary

#557CE7

secondary

#E7D8B1

accent

#A20ED7

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #557CE7

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

Preview Lab → · Contrast checker → · Palette generator →