#557FE8#557FE8

#557FE8 is a mid, vivid blue. Relative luminance 0.229; OKLCH L 61.8% C 0.165 H 265.5°. Best body text is #000000 at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#557FE8
RGB	rgb(85, 127, 232)
HSL	hsl(223, 76%, 62%)
HSV	hsv(223, 63%, 91%)
CMYK	cmyk(63.4%, 45.3%, 0%, 9%)
CIE-LAB	lab(55.00, 18.09, -57.59)
CIE-LCH	lch(55.00, 60.36, 287.44°)
OKLab	oklab(61.84% -0.0131 -0.1646)
OKLCH	oklch(61.84% 0.165 265.5)
XYZ	xyz(25.8961, 22.9339, 79.3903)
Luminance	0.2294 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557FE8 #E8BE55

analogous

#55C9E8 #557FE8 #7555E8

triadic

#557FE8 #E8557F #7FE855

tetradic

#557FE8 #E855C9 #E8BE55 #55E875

square

#557FE8 #E855C9 #E8BE55 #55E875

split-complementary

#557FE8 #E87555 #C9E855

monochromatic

#1742AB #1F56E1 #557FE8 #8BA8EF #C1D0F7

Accessibility & contrast

On white

3.76

#557FE8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.59

#557FE8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557FE8

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557FE8	#FFFFFF	#000000	##000000
##557FE8	1.00	3.76	5.59	5.59
#FFFFFF	3.76	1.00	21.00	21.00
#000000	5.59	21.00	1.00	1.00
##000000	5.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C8BEC

Deuteranopia (green-blind)

#327DE6

Tritanopia (blue-blind)

#0097A8

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #557fe8;
/* rgb */ color: rgb(85, 127, 232);
/* oklch */ color: oklch(61.8% 0.165 265.5);

Tailwind

colors: {
  custom: {
    50: '#92a3f0',
    500: '#557fe8',
    950: '#000000',
  },
}

SCSS

$custom: #557fe8;
$custom-light: #92a3f0;
$custom-dark: #000000;

JSON

{
  "hex": "#557fe8",
  "rgb": {
    "r": 85,
    "g": 127,
    "b": 232
  },
  "hsl": {
    "h": 222.857,
    "s": 76.166,
    "l": 62.157
  },
  "oklch": {
    "l": 0.61839,
    "c": 0.1651,
    "h": 265.5
  },
  "luminance": 0.22936
}

Semantic roles & 50–950 ramp

primary

#557FE8

secondary

#E7D8B1

accent

#9E0DD8

background

#F9FAFE

surface

#F2F3FD

border

#CCCDD5

text

#0E0F17

muted

#7E7F85

Preview Lab

Preview with #557FE8

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

Preview Lab → · Contrast checker → · Palette generator →