#557AD5#557AD5

#557AD5 is a mid, vivid blue. Relative luminance 0.207; OKLCH L 59.6% C 0.145 H 265.6°. Best body text is #000000 at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#557AD5
RGB	rgb(85, 122, 213)
HSL	hsl(223, 60%, 58%)
HSV	hsv(223, 60%, 84%)
CMYK	cmyk(60.1%, 42.7%, 0%, 16.5%)
CIE-LAB	lab(52.57, 14.72, -50.81)
CIE-LCH	lch(52.57, 52.90, 286.16°)
OKLab	oklab(59.61% -0.0112 -0.1447)
OKLCH	oklch(59.61% 0.145 265.6)
XYZ	xyz(22.7120, 20.6525, 65.7273)
Luminance	0.2065 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557AD5 #D5B055

analogous

#55BAD5 #557AD5 #7055D5

triadic

#557AD5 #D5557A #7AD555

tetradic

#557AD5 #D555BA #D5B055 #55D570

square

#557AD5 #D555BA #D5B055 #55D570

split-complementary

#557AD5 #D57055 #BAD555

monochromatic

#23418D #2F58BE #557AD5 #86A0E1 #B7C7ED

Accessibility & contrast

On white

4.09

#557AD5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.13

#557AD5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557AD5

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557AD5	#FFFFFF	#000000	##000000
##557AD5	1.00	4.09	5.13	5.13
#FFFFFF	4.09	1.00	21.00	21.00
#000000	5.13	21.00	1.00	1.00
##000000	5.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5184D8

Deuteranopia (green-blind)

#3F78D3

Tritanopia (blue-blind)

#008E9D

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #557ad5;
/* rgb */ color: rgb(85, 122, 213);
/* oklch */ color: oklch(59.6% 0.145 265.6);

Tailwind

colors: {
  custom: {
    50: '#8fa0e2',
    500: '#557ad5',
    950: '#000000',
  },
}

SCSS

$custom: #557ad5;
$custom-light: #8fa0e2;
$custom-dark: #000000;

JSON

{
  "hex": "#557ad5",
  "rgb": {
    "r": 85,
    "g": 122,
    "b": 213
  },
  "hsl": {
    "h": 222.656,
    "s": 60.377,
    "l": 58.431
  },
  "oklch": {
    "l": 0.59615,
    "c": 0.14517,
    "h": 265.6
  },
  "luminance": 0.20654
}

Semantic roles & 50–950 ramp

primary

#557AD5

secondary

#DCCEA9

accent

#B544E4

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #557AD5

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

Preview Lab → · Contrast checker → · Palette generator →