#557EC8#557EC8

#557EC8 is a mid, vivid blue. Relative luminance 0.210; OKLCH L 59.7% C 0.123 H 261.4°. Best body text is #000000 at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#557EC8
RGB	rgb(85, 126, 200)
HSL	hsl(219, 51%, 56%)
HSV	hsv(219, 58%, 78%)
CMYK	cmyk(57.5%, 37%, 0%, 21.6%)
CIE-LAB	lab(52.97, 7.96, -42.79)
CIE-LCH	lch(52.97, 43.52, 280.54°)
OKLab	oklab(59.7% -0.0182 -0.1212)
OKLCH	oklch(59.7% 0.123 261.4)
XYZ	xyz(21.6289, 21.0214, 57.5501)
Luminance	0.2102 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557EC8 #C89F55

analogous

#55B7C8 #557EC8 #6555C8

triadic

#557EC8 #C8557E #7EC855

tetradic

#557EC8 #C855B7 #C89F55 #55C865

square

#557EC8 #C855B7 #C89F55 #55C865

split-complementary

#557EC8 #C86555 #B7C855

monochromatic

#28457B #375FA9 #557EC8 #83A1D7 #B1C4E6

Accessibility & contrast

On white

4.03

#557EC8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.20

#557EC8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557EC8

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557EC8	#FFFFFF	#000000	##000000
##557EC8	1.00	4.03	5.20	5.20
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.20	21.00	1.00	1.00
##000000	5.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F84CB

Deuteranopia (green-blind)

#517AC6

Tritanopia (blue-blind)

#008E99

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #557ec8;
/* rgb */ color: rgb(85, 126, 200);
/* oklch */ color: oklch(59.7% 0.123 261.4);

Tailwind

colors: {
  custom: {
    50: '#8da3d9',
    500: '#557ec8',
    950: '#000000',
  },
}

SCSS

$custom: #557ec8;
$custom-light: #8da3d9;
$custom-dark: #000000;

JSON

{
  "hex": "#557ec8",
  "rgb": {
    "r": 85,
    "g": 126,
    "b": 200
  },
  "hsl": {
    "h": 218.609,
    "s": 51.111,
    "l": 55.882
  },
  "oklch": {
    "l": 0.59702,
    "c": 0.12255,
    "h": 261.4
  },
  "luminance": 0.21023
}

Semantic roles & 50–950 ramp

primary

#557EC8

secondary

#D4C3A5

accent

#A84DDB

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0F14

muted

#7E7E83

Preview Lab

Preview with #557EC8

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

Preview Lab → · Contrast checker → · Palette generator →