#557EEA#557EEA

#557EEA is a mid, vivid blue. Relative luminance 0.228; OKLCH L 61.8% C 0.169 H 266.0°. Best body text is #000000 at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#557EEA
RGB	rgb(85, 126, 234)
HSL	hsl(223, 78%, 63%)
HSV	hsv(223, 64%, 92%)
CMYK	cmyk(63.7%, 46.2%, 0%, 8.2%)
CIE-LAB	lab(54.86, 19.38, -58.94)
CIE-LCH	lch(54.86, 62.05, 288.20°)
OKLab	oklab(61.76% -0.0118 -0.1686)
OKLCH	oklch(61.76% 0.169 266)
XYZ	xyz(26.0533, 22.7911, 80.8521)
Luminance	0.2279 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557EEA #EAC155

analogous

#55C8EA #557EEA #7755EA

triadic

#557EEA #EA557E #7EEA55

tetradic

#557EEA #EA55C8 #EAC155 #55EA77

square

#557EEA #EA55C8 #EAC155 #55EA77

split-complementary

#557EEA #EA7755 #C8EA55

monochromatic

#1640AF #1F55E3 #557EEA #8BA7F1 #C2D1F7

Accessibility & contrast

On white

3.78

#557EEA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.56

#557EEA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557EEA

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557EEA	#FFFFFF	#000000	##000000
##557EEA	1.00	3.78	5.56	5.56
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.56	21.00	1.00	1.00
##000000	5.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#488AEE

Deuteranopia (green-blind)

#2C7DE8

Tritanopia (blue-blind)

#0097A9

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #557eea;
/* rgb */ color: rgb(85, 126, 234);
/* oklch */ color: oklch(61.8% 0.169 266.0);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#557eea",
  "rgb": {
    "r": 85,
    "g": 126,
    "b": 234
  },
  "hsl": {
    "h": 223.49,
    "s": 78.01,
    "l": 62.549
  },
  "oklch": {
    "l": 0.61764,
    "c": 0.16898,
    "h": 266
  },
  "luminance": 0.22794
}

Semantic roles & 50–950 ramp

primary

#557EEA

secondary

#E8DAB2

accent

#A10BDA

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0F17

muted

#7E7E85

Preview Lab

Preview with #557EEA

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

Preview Lab → · Contrast checker → · Palette generator →