#557AE0#557AE0

#557AE0 is a mid, vivid blue. Relative luminance 0.212; OKLCH L 60.3% C 0.160 H 266.6°. Best body text is #000000 at 5.25:1 contrast (WCAG AA passes).

Color values

HEX	#557AE0
RGB	rgb(85, 122, 224)
HSL	hsl(224, 69%, 61%)
HSV	hsv(224, 62%, 88%)
CMYK	cmyk(62.1%, 45.5%, 0%, 12.2%)
CIE-LAB	lab(53.20, 18.43, -56.00)
CIE-LCH	lch(53.20, 58.96, 288.22°)
OKLab	oklab(60.31% -0.0094 -0.16)
OKLCH	oklch(60.31% 0.16 266.6)
XYZ	xyz(24.1558, 21.2300, 73.3314)
Luminance	0.2123 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557AE0 #E0BB55

analogous

#55BFE0 #557AE0 #7555E0

triadic

#557AE0 #E0557A #7AE055

tetradic

#557AE0 #E055BF #E0BB55 #55E075

square

#557AE0 #E055BF #E0BB55 #55E075

split-complementary

#557AE0 #E07555 #BFE055

monochromatic

#1D3F9E #2654D2 #557AE0 #89A2E9 #BDCBF3

Accessibility & contrast

On white

4.00

#557AE0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.25

#557AE0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557AE0

5.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557AE0	#FFFFFF	#000000	##000000
##557AE0	1.00	4.00	5.25	5.25
#FFFFFF	4.00	1.00	21.00	21.00
#000000	5.25	21.00	1.00	1.00
##000000	5.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4986E4

Deuteranopia (green-blind)

#3179DE

Tritanopia (blue-blind)

#0091A2

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #557ae0;
/* rgb */ color: rgb(85, 122, 224);
/* oklch */ color: oklch(60.3% 0.160 266.6);

Tailwind

colors: {
  custom: {
    50: '#91a0ea',
    500: '#557ae0',
    950: '#000000',
  },
}

SCSS

$custom: #557ae0;
$custom-light: #91a0ea;
$custom-dark: #000000;

JSON

{
  "hex": "#557ae0",
  "rgb": {
    "r": 85,
    "g": 122,
    "b": 224
  },
  "hsl": {
    "h": 224.029,
    "s": 69.154,
    "l": 60.588
  },
  "oklch": {
    "l": 0.60306,
    "c": 0.16025,
    "h": 266.6
  },
  "luminance": 0.21232
}

Semantic roles & 50–950 ramp

primary

#557AE0

secondary

#E3D5AE

accent

#9F14D1

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #557AE0

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

Preview Lab → · Contrast checker → · Palette generator →