#557CC7#557CC7

#557CC7 is a mid, vivid blue. Relative luminance 0.205; OKLCH L 59.2% C 0.123 H 262.4°. Best body text is #000000 at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#557CC7
RGB	rgb(85, 124, 199)
HSL	hsl(219, 50%, 56%)
HSV	hsv(219, 57%, 78%)
CMYK	cmyk(57.3%, 37.7%, 0%, 22%)
CIE-LAB	lab(52.36, 8.84, -43.18)
CIE-LCH	lch(52.36, 44.08, 281.57°)
OKLab	oklab(59.21% -0.0162 -0.1224)
OKLCH	oklch(59.21% 0.123 262.4)
XYZ	xyz(21.2592, 20.4684, 56.8522)
Luminance	0.2047 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557CC7 #C7A055

analogous

#55B5C7 #557CC7 #6755C7

triadic

#557CC7 #C7557C #7CC755

tetradic

#557CC7 #C755B5 #C7A055 #55C767

square

#557CC7 #C755B5 #C7A055 #55C767

split-complementary

#557CC7 #C76755 #B5C755

monochromatic

#28447A #375EA8 #557CC7 #839FD6 #B1C3E5

Accessibility & contrast

On white

4.12

#557CC7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.09

#557CC7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557CC7

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557CC7	#FFFFFF	#000000	##000000
##557CC7	1.00	4.12	5.09	5.09
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.09	21.00	1.00	1.00
##000000	5.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D83CA

Deuteranopia (green-blind)

#4E78C5

Tritanopia (blue-blind)

#008D98

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #557cc7;
/* rgb */ color: rgb(85, 124, 199);
/* oklch */ color: oklch(59.2% 0.123 262.4);

Tailwind

colors: {
  custom: {
    50: '#8da1d8',
    500: '#557cc7',
    950: '#000000',
  },
}

SCSS

$custom: #557cc7;
$custom-light: #8da1d8;
$custom-dark: #000000;

JSON

{
  "hex": "#557cc7",
  "rgb": {
    "r": 85,
    "g": 124,
    "b": 199
  },
  "hsl": {
    "h": 219.474,
    "s": 50.442,
    "l": 55.686
  },
  "oklch": {
    "l": 0.59212,
    "c": 0.12344,
    "h": 262.4
  },
  "luminance": 0.2047
}

Semantic roles & 50–950 ramp

primary

#557CC7

secondary

#D4C3A4

accent

#AA4EDA

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0E14

muted

#7E7E83

Preview Lab

Preview with #557CC7

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

Preview Lab → · Contrast checker → · Palette generator →