#557DE3#557DE3

#557DE3 is a mid, vivid blue. Relative luminance 0.221; OKLCH L 61.1% C 0.161 H 265.8°. Best body text is #000000 at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#557DE3
RGB	rgb(85, 125, 227)
HSL	hsl(223, 72%, 61%)
HSV	hsv(223, 63%, 89%)
CMYK	cmyk(62.6%, 44.9%, 0%, 11%)
CIE-LAB	lab(54.18, 17.61, -56.12)
CIE-LCH	lch(54.18, 58.82, 287.43°)
OKLab	oklab(61.11% -0.0119 -0.1603)
OKLCH	oklch(61.11% 0.161 265.8)
XYZ	xyz(24.9403, 22.1423, 75.6177)
Luminance	0.2215 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557DE3 #E3BB55

analogous

#55C4E3 #557DE3 #7455E3

triadic

#557DE3 #E3557D #7DE355

tetradic

#557DE3 #E355C4 #E3BB55 #55E374

square

#557DE3 #E355C4 #E3BB55 #55E374

split-complementary

#557DE3 #E37455 #C4E355

monochromatic

#1B41A3 #2356D7 #557DE3 #8AA5EC #BECDF4

Accessibility & contrast

On white

3.87

#557DE3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.43

#557DE3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557DE3

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557DE3	#FFFFFF	#000000	##000000
##557DE3	1.00	3.87	5.43	5.43
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.43	21.00	1.00	1.00
##000000	5.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C88E7

Deuteranopia (green-blind)

#347BE1

Tritanopia (blue-blind)

#0094A5

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #557de3;
/* rgb */ color: rgb(85, 125, 227);
/* oklch */ color: oklch(61.1% 0.161 265.8);

Tailwind

colors: {
  custom: {
    50: '#91a2ec',
    500: '#557de3',
    950: '#000000',
  },
}

SCSS

$custom: #557de3;
$custom-light: #91a2ec;
$custom-dark: #000000;

JSON

{
  "hex": "#557de3",
  "rgb": {
    "r": 85,
    "g": 125,
    "b": 227
  },
  "hsl": {
    "h": 223.099,
    "s": 71.717,
    "l": 61.176
  },
  "oklch": {
    "l": 0.61111,
    "c": 0.16072,
    "h": 265.8
  },
  "luminance": 0.22145
}

Semantic roles & 50–950 ramp

primary

#557DE3

secondary

#E5D6AF

accent

#9D12D4

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #557DE3

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

Preview Lab → · Contrast checker → · Palette generator →