#557EE7#557EE7

#557EE7 is a mid, vivid blue. Relative luminance 0.226; OKLCH L 61.6% C 0.165 H 265.7°. Best body text is #000000 at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#557EE7
RGB	rgb(85, 126, 231)
HSL	hsl(223, 75%, 62%)
HSV	hsv(223, 63%, 91%)
CMYK	cmyk(63.2%, 45.5%, 0%, 9.4%)
CIE-LAB	lab(54.68, 18.36, -57.55)
CIE-LCH	lch(54.68, 60.41, 287.69°)
OKLab	oklab(61.57% -0.0123 -0.1645)
OKLCH	oklch(61.57% 0.165 265.7)
XYZ	xyz(25.6260, 22.6202, 78.6015)
Luminance	0.2262 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557EE7 #E7BE55

analogous

#55C7E7 #557EE7 #7555E7

triadic

#557EE7 #E7557E #7EE755

tetradic

#557EE7 #E755C7 #E7BE55 #55E775

square

#557EE7 #E755C7 #E7BE55 #55E775

split-complementary

#557EE7 #E77555 #C7E755

monochromatic

#1841AA #2055DF #557EE7 #8BA7EF #C0CFF6

Accessibility & contrast

On white

3.80

#557EE7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.52

#557EE7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557EE7

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557EE7	#FFFFFF	#000000	##000000
##557EE7	1.00	3.80	5.52	5.52
#FFFFFF	3.80	1.00	21.00	21.00
#000000	5.52	21.00	1.00	1.00
##000000	5.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B8AEB

Deuteranopia (green-blind)

#317DE5

Tritanopia (blue-blind)

#0096A7

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #557ee7;
/* rgb */ color: rgb(85, 126, 231);
/* oklch */ color: oklch(61.6% 0.165 265.7);

Tailwind

colors: {
  custom: {
    50: '#92a2ef',
    500: '#557ee7',
    950: '#000000',
  },
}

SCSS

$custom: #557ee7;
$custom-light: #92a2ef;
$custom-dark: #000000;

JSON

{
  "hex": "#557ee7",
  "rgb": {
    "r": 85,
    "g": 126,
    "b": 231
  },
  "hsl": {
    "h": 223.151,
    "s": 75.258,
    "l": 61.961
  },
  "oklch": {
    "l": 0.61571,
    "c": 0.16495,
    "h": 265.7
  },
  "luminance": 0.22623
}

Semantic roles & 50–950 ramp

primary

#557EE7

secondary

#E7D8B1

accent

#9F0ED7

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0F16

muted

#7E7E84

Preview Lab

Preview with #557EE7

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

Preview Lab → · Contrast checker → · Palette generator →