#557DF1#557DF1

#557DF1 is a light, vivid blue. Relative luminance 0.229; OKLCH L 62.0% C 0.180 H 266.8°. Best body text is #000000 at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#557DF1
RGB	rgb(85, 125, 241)
HSL	hsl(225, 85%, 64%)
HSV	hsv(225, 65%, 95%)
CMYK	cmyk(64.7%, 48.1%, 0%, 5.5%)
CIE-LAB	lab(55.02, 22.38, -62.58)
CIE-LCH	lch(55.02, 66.46, 289.68°)
OKLab	oklab(62.02% -0.01 -0.1793)
OKLCH	oklch(62.02% 0.18 266.8)
XYZ	xyz(26.9516, 22.9469, 86.2109)
Luminance	0.2295 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557DF1 #F1C955

analogous

#55CBF1 #557DF1 #7B55F1

triadic

#557DF1 #F1557D #7DF155

tetradic

#557DF1 #F155CB #F1C955 #55F17B

square

#557DF1 #F155CB #F1C955 #55F17B

split-complementary

#557DF1 #F17B55 #CBF155

monochromatic

#0F3CBC #1C52EC #557DF1 #8EA8F6 #C6D3FA

Accessibility & contrast

On white

3.76

#557DF1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.59

#557DF1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557DF1

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557DF1	#FFFFFF	#000000	##000000
##557DF1	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)

#3F8BF5

Deuteranopia (green-blind)

#187DEF

Tritanopia (blue-blind)

#0098AB

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #557df1;
/* rgb */ color: rgb(85, 125, 241);
/* oklch */ color: oklch(62.0% 0.180 266.8);

Tailwind

colors: {
  custom: {
    50: '#94a2f6',
    500: '#557df1',
    950: '#000000',
  },
}

SCSS

$custom: #557df1;
$custom-light: #94a2f6;
$custom-dark: #000000;

JSON

{
  "hex": "#557df1",
  "rgb": {
    "r": 85,
    "g": 125,
    "b": 241
  },
  "hsl": {
    "h": 224.615,
    "s": 84.783,
    "l": 63.922
  },
  "oklch": {
    "l": 0.62023,
    "c": 0.17957,
    "h": 266.8
  },
  "luminance": 0.22949
}

Semantic roles & 50–950 ramp

primary

#557DF1

secondary

#ECDEB6

accent

#A904E1

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0E0F17

muted

#7E7E85

Preview Lab

Preview with #557DF1

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

Preview Lab → · Contrast checker → · Palette generator →