#557ED0#557ED0

#557ED0 is a mid, vivid blue. Relative luminance 0.214; OKLCH L 60.2% C 0.134 H 262.9°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#557ED0
RGB	rgb(85, 126, 208)
HSL	hsl(220, 57%, 57%)
HSV	hsv(220, 59%, 82%)
CMYK	cmyk(59.1%, 39.4%, 0%, 18.4%)
CIE-LAB	lab(53.39, 10.61, -46.67)
CIE-LCH	lch(53.39, 47.86, 282.81°)
OKLab	oklab(60.16% -0.0164 -0.1325)
OKLCH	oklch(60.16% 0.134 262.9)
XYZ	xyz(22.5884, 21.4052, 62.6035)
Luminance	0.2141 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557ED0 #D0A755

analogous

#55BCD0 #557ED0 #6A55D0

triadic

#557ED0 #D0557E #7ED055

tetradic

#557ED0 #D055BC #D0A755 #55D06A

square

#557ED0 #D055BC #D0A755 #55D06A

split-complementary

#557ED0 #D06A55 #BCD055

monochromatic

#254586 #325EB6 #557ED0 #85A2DD #B5C7EB

Accessibility & contrast

On white

3.98

#557ED0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#557ED0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557ED0

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557ED0	#FFFFFF	#000000	##000000
##557ED0	1.00	3.98	5.28	5.28
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.28	21.00	1.00	1.00
##000000	5.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B86D3

Deuteranopia (green-blind)

#4A7ACE

Tritanopia (blue-blind)

#00909D

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #557ed0;
/* rgb */ color: rgb(85, 126, 208);
/* oklch */ color: oklch(60.2% 0.134 262.9);

Tailwind

colors: {
  custom: {
    50: '#8fa3df',
    500: '#557ed0',
    950: '#000000',
  },
}

SCSS

$custom: #557ed0;
$custom-light: #8fa3df;
$custom-dark: #000000;

JSON

{
  "hex": "#557ed0",
  "rgb": {
    "r": 85,
    "g": 126,
    "b": 208
  },
  "hsl": {
    "h": 220,
    "s": 56.682,
    "l": 57.451
  },
  "oklch": {
    "l": 0.60161,
    "c": 0.13357,
    "h": 262.9
  },
  "luminance": 0.21407
}

Semantic roles & 50–950 ramp

primary

#557ED0

secondary

#D9C9A8

accent

#AD48E0

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #557ED0

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

Preview Lab → · Contrast checker → · Palette generator →