#557DEA#557DEA

#557DEA is a mid, vivid blue. Relative luminance 0.225; OKLCH L 61.6% C 0.170 H 266.3°. Best body text is #000000 at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#557DEA
RGB	rgb(85, 125, 234)
HSL	hsl(224, 78%, 63%)
HSV	hsv(224, 64%, 92%)
CMYK	cmyk(63.7%, 46.6%, 0%, 8.2%)
CIE-LAB	lab(54.59, 19.99, -59.37)
CIE-LCH	lch(54.59, 62.64, 288.61°)
OKLab	oklab(61.56% -0.0109 -0.1698)
OKLCH	oklch(61.56% 0.17 266.3)
XYZ	xyz(25.9261, 22.5367, 80.8097)
Luminance	0.2254 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557DEA #EAC255

analogous

#55C7EA #557DEA #7855EA

triadic

#557DEA #EA557D #7DEA55

tetradic

#557DEA #EA55C7 #EAC255 #55EA78

square

#557DEA #EA55C7 #EAC255 #55EA78

split-complementary

#557DEA #EA7855 #C7EA55

monochromatic

#163FAF #1F53E3 #557DEA #8BA7F1 #C2D0F7

Accessibility & contrast

On white

3.81

#557DEA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.51

#557DEA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557DEA

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557DEA	#FFFFFF	#000000	##000000
##557DEA	1.00	3.81	5.51	5.51
#FFFFFF	3.81	1.00	21.00	21.00
#000000	5.51	21.00	1.00	1.00
##000000	5.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#468AEE

Deuteranopia (green-blind)

#297CE8

Tritanopia (blue-blind)

#0096A8

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #557dea;
/* rgb */ color: rgb(85, 125, 234);
/* oklch */ color: oklch(61.6% 0.170 266.3);

Tailwind

colors: {
  custom: {
    50: '#93a2f1',
    500: '#557dea',
    950: '#000000',
  },
}

SCSS

$custom: #557dea;
$custom-light: #93a2f1;
$custom-dark: #000000;

JSON

{
  "hex": "#557dea",
  "rgb": {
    "r": 85,
    "g": 125,
    "b": 234
  },
  "hsl": {
    "h": 223.893,
    "s": 78.01,
    "l": 62.549
  },
  "oklch": {
    "l": 0.61562,
    "c": 0.17019,
    "h": 266.3
  },
  "luminance": 0.22539
}

Semantic roles & 50–950 ramp

primary

#557DEA

secondary

#E8DAB2

accent

#A30BDA

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0F17

muted

#7E7E85

Preview Lab

Preview with #557DEA

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

Preview Lab → · Contrast checker → · Palette generator →