#557DD5#557DD5

#557DD5 is a mid, vivid blue. Relative luminance 0.214; OKLCH L 60.2% C 0.142 H 264.2°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#557DD5
RGB	rgb(85, 125, 213)
HSL	hsl(221, 60%, 58%)
HSV	hsv(221, 60%, 84%)
CMYK	cmyk(60.1%, 41.3%, 0%, 16.5%)
CIE-LAB	lab(53.39, 12.89, -49.51)
CIE-LCH	lch(53.39, 51.16, 284.60°)
OKLab	oklab(60.25% -0.0144 -0.1409)
OKLCH	oklch(60.25% 0.142 264.2)
XYZ	xyz(23.0860, 21.4006, 65.8520)
Luminance	0.2140 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557DD5 #D5AD55

analogous

#55BDD5 #557DD5 #6D55D5

triadic

#557DD5 #D5557D #7DD555

tetradic

#557DD5 #D555BD #D5AD55 #55D56D

square

#557DD5 #D555BD #D5AD55 #55D56D

split-complementary

#557DD5 #D56D55 #BDD555

monochromatic

#23448D #2F5CBE #557DD5 #86A3E1 #B7C8ED

Accessibility & contrast

On white

3.98

#557DD5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#557DD5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557DD5

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557DD5	#FFFFFF	#000000	##000000
##557DD5	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)

#5686D8

Deuteranopia (green-blind)

#447AD3

Tritanopia (blue-blind)

#00919F

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #557dd5;
/* rgb */ color: rgb(85, 125, 213);
/* oklch */ color: oklch(60.2% 0.142 264.2);

Tailwind

colors: {
  custom: {
    50: '#8fa2e2',
    500: '#557dd5',
    950: '#000000',
  },
}

SCSS

$custom: #557dd5;
$custom-light: #8fa2e2;
$custom-dark: #000000;

JSON

{
  "hex": "#557dd5",
  "rgb": {
    "r": 85,
    "g": 125,
    "b": 213
  },
  "hsl": {
    "h": 221.25,
    "s": 60.377,
    "l": 58.431
  },
  "oklch": {
    "l": 0.60245,
    "c": 0.1416,
    "h": 264.2
  },
  "luminance": 0.21403
}

Semantic roles & 50–950 ramp

primary

#557DD5

secondary

#DCCCA9

accent

#B244E4

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0D0F15

muted

#7E7E83

Preview Lab

Preview with #557DD5

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

Preview Lab → · Contrast checker → · Palette generator →