#557AEC#557AEC

#557AEC is a mid, vivid blue. Relative luminance 0.219; OKLCH L 61.1% C 0.176 H 267.5°. Best body text is #000000 at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#557AEC
RGB	rgb(85, 122, 236)
HSL	hsl(225, 80%, 63%)
HSV	hsv(225, 64%, 93%)
CMYK	cmyk(64%, 48.3%, 0%, 7.5%)
CIE-LAB	lab(53.93, 22.51, -61.55)
CIE-LCH	lch(53.93, 65.54, 290.09°)
OKLab	oklab(61.09% -0.0078 -0.1763)
OKLCH	oklch(61.09% 0.176 267.5)
XYZ	xyz(25.8410, 21.9041, 82.2067)
Luminance	0.2191 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557AEC #ECC755

analogous

#55C5EC #557AEC #7B55EC

triadic

#557AEC #EC557A #7AEC55

tetradic

#557AEC #EC55C5 #ECC755 #55EC7B

square

#557AEC #EC55C5 #ECC755 #55EC7B

split-complementary

#557AEC #EC7B55 #C5EC55

monochromatic

#143BB3 #1E4FE6 #557AEC #8CA5F2 #C3D0F8

Accessibility & contrast

On white

3.90

#557AEC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.38

#557AEC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557AEC

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557AEC	#FFFFFF	#000000	##000000
##557AEC	1.00	3.90	5.38	5.38
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.38	21.00	1.00	1.00
##000000	5.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D88F0

Deuteranopia (green-blind)

#197AEA

Tritanopia (blue-blind)

#0094A8

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #557aec;
/* rgb */ color: rgb(85, 122, 236);
/* oklch */ color: oklch(61.1% 0.176 267.5);

Tailwind

colors: {
  custom: {
    50: '#93a0f3',
    500: '#557aec',
    950: '#000000',
  },
}

SCSS

$custom: #557aec;
$custom-light: #93a0f3;
$custom-dark: #000000;

JSON

{
  "hex": "#557aec",
  "rgb": {
    "r": 85,
    "g": 122,
    "b": 236
  },
  "hsl": {
    "h": 225.298,
    "s": 79.894,
    "l": 62.941
  },
  "oklch": {
    "l": 0.61092,
    "c": 0.17648,
    "h": 267.5
  },
  "luminance": 0.21906
}

Semantic roles & 50–950 ramp

primary

#557AEC

secondary

#EADCB3

accent

#A909DC

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #557AEC

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

Preview Lab → · Contrast checker → · Palette generator →