#557FDE#557FDE

#557FDE is a mid, vivid blue. Relative luminance 0.224; OKLCH L 61.2% C 0.152 H 264.4°. Best body text is #000000 at 5.48:1 contrast (WCAG AA passes).

Color values

HEX	#557FDE
RGB	rgb(85, 127, 222)
HSL	hsl(222, 67%, 60%)
HSV	hsv(222, 62%, 87%)
CMYK	cmyk(61.7%, 42.8%, 0%, 12.9%)
CIE-LAB	lab(54.43, 14.70, -52.91)
CIE-LCH	lch(54.43, 54.91, 285.53°)
OKLab	oklab(61.21% -0.0147 -0.1508)
OKLCH	oklch(61.21% 0.152 264.4)
XYZ	xyz(24.5159, 22.3818, 72.1212)
Luminance	0.2238 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557FDE #DEB455

analogous

#55C3DE #557FDE #6F55DE

triadic

#557FDE #DE557F #7FDE55

tetradic

#557FDE #DE55C3 #DEB455 #55DE6F

square

#557FDE #DE55C3 #DEB455 #55DE6F

split-complementary

#557FDE #DE6F55 #C3DE55

monochromatic

#1E449B #285BCE #557FDE #88A6E8 #BCCCF2

Accessibility & contrast

On white

3.83

#557FDE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.48

#557FDE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557FDE

5.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557FDE	#FFFFFF	#000000	##000000
##557FDE	1.00	3.83	5.48	5.48
#FFFFFF	3.83	1.00	21.00	21.00
#000000	5.48	21.00	1.00	1.00
##000000	5.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5489E2

Deuteranopia (green-blind)

#3F7CDC

Tritanopia (blue-blind)

#0094A4

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #557fde;
/* rgb */ color: rgb(85, 127, 222);
/* oklch */ color: oklch(61.2% 0.152 264.4);

Tailwind

colors: {
  custom: {
    50: '#91a3e9',
    500: '#557fde',
    950: '#000000',
  },
}

SCSS

$custom: #557fde;
$custom-light: #91a3e9;
$custom-dark: #000000;

JSON

{
  "hex": "#557fde",
  "rgb": {
    "r": 85,
    "g": 127,
    "b": 222
  },
  "hsl": {
    "h": 221.606,
    "s": 67.488,
    "l": 60.196
  },
  "oklch": {
    "l": 0.61212,
    "c": 0.15155,
    "h": 264.4
  },
  "luminance": 0.22384
}

Semantic roles & 50–950 ramp

primary

#557FDE

secondary

#E2D2AD

accent

#9716CF

background

#F9FAFE

surface

#F2F3FD

border

#CCCDD5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #557FDE

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

Preview Lab → · Contrast checker → · Palette generator →