#557DD7#557DD7

#557DD7 is a mid, vivid blue. Relative luminance 0.215; OKLCH L 60.4% C 0.144 H 264.4°. Best body text is #000000 at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#557DD7
RGB	rgb(85, 125, 215)
HSL	hsl(222, 62%, 59%)
HSV	hsv(222, 60%, 84%)
CMYK	cmyk(60.5%, 41.9%, 0%, 15.7%)
CIE-LAB	lab(53.50, 13.56, -50.46)
CIE-LCH	lch(53.50, 52.25, 285.04°)
OKLab	oklab(60.37% -0.014 -0.1437)
OKLCH	oklch(60.37% 0.144 264.4)
XYZ	xyz(23.3414, 21.5028, 67.1972)
Luminance	0.2150 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557DD7 #D7AF55

analogous

#55BED7 #557DD7 #6E55D7

triadic

#557DD7 #D7557D #7DD755

tetradic

#557DD7 #D755BE #D7AF55 #55D76E

square

#557DD7 #D755BE #D7AF55 #55D76E

split-complementary

#557DD7 #D76E55 #BED755

monochromatic

#224490 #2D5BC1 #557DD7 #87A3E3 #B8C9EE

Accessibility & contrast

On white

3.96

#557DD7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.30

#557DD7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557DD7

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557DD7	#FFFFFF	#000000	##000000
##557DD7	1.00	3.96	5.30	5.30
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.30	21.00	1.00	1.00
##000000	5.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5586DA

Deuteranopia (green-blind)

#427AD5

Tritanopia (blue-blind)

#00919F

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #557dd7;
/* rgb */ color: rgb(85, 125, 215);
/* oklch */ color: oklch(60.4% 0.144 264.4);

Tailwind

colors: {
  custom: {
    50: '#90a2e4',
    500: '#557dd7',
    950: '#000000',
  },
}

SCSS

$custom: #557dd7;
$custom-light: #90a2e4;
$custom-dark: #000000;

JSON

{
  "hex": "#557dd7",
  "rgb": {
    "r": 85,
    "g": 125,
    "b": 215
  },
  "hsl": {
    "h": 221.538,
    "s": 61.905,
    "l": 58.824
  },
  "oklch": {
    "l": 0.60366,
    "c": 0.14435,
    "h": 264.4
  },
  "luminance": 0.21505
}

Semantic roles & 50–950 ramp

primary

#557DD7

secondary

#DECEAA

accent

#B343E5

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0D0F15

muted

#7E7E84

Preview Lab

Preview with #557DD7

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

Preview Lab → · Contrast checker → · Palette generator →