#557DD2#557DD2

#557DD2 is a mid, vivid blue. Relative luminance 0.213; OKLCH L 60.1% C 0.137 H 263.8°. Best body text is #000000 at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#557DD2
RGB	rgb(85, 125, 210)
HSL	hsl(221, 58%, 58%)
HSV	hsv(221, 60%, 82%)
CMYK	cmyk(59.5%, 40.5%, 0%, 17.6%)
CIE-LAB	lab(53.22, 11.89, -48.07)
CIE-LCH	lch(53.22, 49.52, 283.89°)
OKLab	oklab(60.07% -0.015 -0.1367)
OKLCH	oklch(60.07% 0.137 263.8)
XYZ	xyz(22.7088, 21.2497, 63.8652)
Luminance	0.2125 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557DD2 #D2AA55

analogous

#55BCD2 #557DD2 #6B55D2

triadic

#557DD2 #D2557D #7DD255

tetradic

#557DD2 #D255BC #D2AA55 #55D26B

square

#557DD2 #D255BC #D2AA55 #55D26B

split-complementary

#557DD2 #D26B55 #BCD255

monochromatic

#244488 #315CB9 #557DD2 #85A2DF #B6C7EC

Accessibility & contrast

On white

4.00

#557DD2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.25

#557DD2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557DD2

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557DD2	#FFFFFF	#000000	##000000
##557DD2	1.00	4.00	5.25	5.25
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.25	21.00	1.00	1.00
##000000	5.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5885D5

Deuteranopia (green-blind)

#477AD0

Tritanopia (blue-blind)

#00909D

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #557dd2;
/* rgb */ color: rgb(85, 125, 210);
/* oklch */ color: oklch(60.1% 0.137 263.8);

Tailwind

colors: {
  custom: {
    50: '#8fa2e0',
    500: '#557dd2',
    950: '#000000',
  },
}

SCSS

$custom: #557dd2;
$custom-light: #8fa2e0;
$custom-dark: #000000;

JSON

{
  "hex": "#557dd2",
  "rgb": {
    "r": 85,
    "g": 125,
    "b": 210
  },
  "hsl": {
    "h": 220.8,
    "s": 58.14,
    "l": 57.843
  },
  "oklch": {
    "l": 0.60066,
    "c": 0.13748,
    "h": 263.8
  },
  "luminance": 0.21252
}

Semantic roles & 50–950 ramp

primary

#557DD2

secondary

#DACAA8

accent

#B046E1

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #557DD2

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

Preview Lab → · Contrast checker → · Palette generator →