#557CD2#557CD2

#557CD2 is a mid, vivid blue. Relative luminance 0.210; OKLCH L 59.9% C 0.139 H 264.2°. Best body text is #000000 at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#557CD2
RGB	rgb(85, 124, 210)
HSL	hsl(221, 58%, 58%)
HSV	hsv(221, 60%, 82%)
CMYK	cmyk(59.5%, 41%, 0%, 17.6%)
CIE-LAB	lab(52.95, 12.50, -48.51)
CIE-LCH	lch(52.95, 50.09, 284.45°)
OKLab	oklab(59.85% -0.0139 -0.1379)
OKLCH	oklch(59.85% 0.139 264.2)
XYZ	xyz(22.5828, 20.9978, 63.8232)
Luminance	0.2100 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557CD2 #D2AB55

analogous

#55BBD2 #557CD2 #6C55D2

triadic

#557CD2 #D2557C #7CD255

tetradic

#557CD2 #D255BB #D2AB55 #55D26C

square

#557CD2 #D255BB #D2AB55 #55D26C

split-complementary

#557CD2 #D26C55 #BBD255

monochromatic

#244388 #315BB9 #557CD2 #85A1DF #B6C7EC

Accessibility & contrast

On white

4.04

#557CD2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.20

#557CD2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557CD2

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557CD2	#FFFFFF	#000000	##000000
##557CD2	1.00	4.04	5.20	5.20
#FFFFFF	4.04	1.00	21.00	21.00
#000000	5.20	21.00	1.00	1.00
##000000	5.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5685D5

Deuteranopia (green-blind)

#4579D0

Tritanopia (blue-blind)

#008F9D

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #557cd2;
/* rgb */ color: rgb(85, 124, 210);
/* oklch */ color: oklch(59.9% 0.139 264.2);

Tailwind

colors: {
  custom: {
    50: '#8fa1e0',
    500: '#557cd2',
    950: '#000000',
  },
}

SCSS

$custom: #557cd2;
$custom-light: #8fa1e0;
$custom-dark: #000000;

JSON

{
  "hex": "#557cd2",
  "rgb": {
    "r": 85,
    "g": 124,
    "b": 210
  },
  "hsl": {
    "h": 221.28,
    "s": 58.14,
    "l": 57.843
  },
  "oklch": {
    "l": 0.59854,
    "c": 0.13865,
    "h": 264.2
  },
  "luminance": 0.21
}

Semantic roles & 50–950 ramp

primary

#557CD2

secondary

#DACBA8

accent

#B146E1

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #557CD2

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

Preview Lab → · Contrast checker → · Palette generator →