#557DDE#557DDE

#557DDE is a mid, vivid blue. Relative luminance 0.219; OKLCH L 60.8% C 0.154 H 265.3°. Best body text is #000000 at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#557DDE
RGB	rgb(85, 125, 222)
HSL	hsl(222, 67%, 60%)
HSV	hsv(222, 62%, 87%)
CMYK	cmyk(61.7%, 43.7%, 0%, 12.9%)
CIE-LAB	lab(53.89, 15.92, -53.77)
CIE-LCH	lch(53.89, 56.08, 286.49°)
OKLab	oklab(60.8% -0.0127 -0.1534)
OKLCH	oklch(60.8% 0.154 265.3)
XYZ	xyz(24.2602, 21.8703, 72.0360)
Luminance	0.2187 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557DDE #DEB655

analogous

#55C1DE #557DDE #7255DE

triadic

#557DDE #DE557D #7DDE55

tetradic

#557DDE #DE55C1 #DEB655 #55DE72

square

#557DDE #DE55C1 #DEB655 #55DE72

split-complementary

#557DDE #DE7255 #C1DE55

monochromatic

#1E429B #2858CE #557DDE #88A4E8 #BCCBF2

Accessibility & contrast

On white

3.91

#557DDE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.37

#557DDE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557DDE

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557DDE	#FFFFFF	#000000	##000000
##557DDE	1.00	3.91	5.37	5.37
#FFFFFF	3.91	1.00	21.00	21.00
#000000	5.37	21.00	1.00	1.00
##000000	5.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5087E2

Deuteranopia (green-blind)

#3B7BDC

Tritanopia (blue-blind)

#0093A3

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #557dde;
/* rgb */ color: rgb(85, 125, 222);
/* oklch */ color: oklch(60.8% 0.154 265.3);

Tailwind

colors: {
  custom: {
    50: '#91a2e9',
    500: '#557dde',
    950: '#000000',
  },
}

SCSS

$custom: #557dde;
$custom-light: #91a2e9;
$custom-dark: #000000;

JSON

{
  "hex": "#557dde",
  "rgb": {
    "r": 85,
    "g": 125,
    "b": 222
  },
  "hsl": {
    "h": 222.482,
    "s": 67.488,
    "l": 60.196
  },
  "oklch": {
    "l": 0.60797,
    "c": 0.15392,
    "h": 265.3
  },
  "luminance": 0.21872
}

Semantic roles & 50–950 ramp

primary

#557DDE

secondary

#E2D2AD

accent

#9916CF

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #557DDE

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

Preview Lab → · Contrast checker → · Palette generator →