#557FE7#557FE7

#557FE7 is a mid, vivid blue. Relative luminance 0.229; OKLCH L 61.8% C 0.164 H 265.4°. Best body text is #000000 at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#557FE7
RGB	rgb(85, 127, 231)
HSL	hsl(223, 75%, 62%)
HSV	hsv(223, 63%, 91%)
CMYK	cmyk(63.2%, 45%, 0%, 9.4%)
CIE-LAB	lab(54.95, 17.75, -57.13)
CIE-LCH	lch(54.95, 59.82, 287.26°)
OKLab	oklab(61.78% -0.0132 -0.1632)
OKLCH	oklch(61.78% 0.164 265.4)
XYZ	xyz(25.7545, 22.8772, 78.6443)
Luminance	0.2288 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557FE7 #E7BD55

analogous

#55C8E7 #557FE7 #7455E7

triadic

#557FE7 #E7557F #7FE755

tetradic

#557FE7 #E755C8 #E7BD55 #55E774

square

#557FE7 #E755C8 #E7BD55 #55E774

split-complementary

#557FE7 #E77455 #C8E755

monochromatic

#1842AA #2057DF #557FE7 #8BA7EF #C0D0F6

Accessibility & contrast

On white

3.77

#557FE7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.58

#557FE7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557FE7

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557FE7	#FFFFFF	#000000	##000000
##557FE7	1.00	3.77	5.58	5.58
#FFFFFF	3.77	1.00	21.00	21.00
#000000	5.58	21.00	1.00	1.00
##000000	5.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D8BEB

Deuteranopia (green-blind)

#347DE5

Tritanopia (blue-blind)

#0097A8

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #557fe7;
/* rgb */ color: rgb(85, 127, 231);
/* oklch */ color: oklch(61.8% 0.164 265.4);

Tailwind

colors: {
  custom: {
    50: '#92a3ef',
    500: '#557fe7',
    950: '#000000',
  },
}

SCSS

$custom: #557fe7;
$custom-light: #92a3ef;
$custom-dark: #000000;

JSON

{
  "hex": "#557fe7",
  "rgb": {
    "r": 85,
    "g": 127,
    "b": 231
  },
  "hsl": {
    "h": 222.74,
    "s": 75.258,
    "l": 61.961
  },
  "oklch": {
    "l": 0.61775,
    "c": 0.16376,
    "h": 265.4
  },
  "luminance": 0.2288
}

Semantic roles & 50–950 ramp

primary

#557FE7

secondary

#E7D7B1

accent

#9E0ED7

background

#F9FAFE

surface

#F2F3FD

border

#CCCDD5

text

#0E0F16

muted

#7E7F84

Preview Lab

Preview with #557FE7

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

Preview Lab → · Contrast checker → · Palette generator →