#557DC7#557DC7

#557DC7 is a mid, vivid blue. Relative luminance 0.207; OKLCH L 59.4% C 0.122 H 261.8°. Best body text is #000000 at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#557DC7
RGB	rgb(85, 125, 199)
HSL	hsl(219, 50%, 56%)
HSV	hsv(219, 57%, 78%)
CMYK	cmyk(57.3%, 37.2%, 0%, 22%)
CIE-LAB	lab(52.64, 8.24, -42.74)
CIE-LCH	lch(52.64, 43.53, 280.91°)
OKLab	oklab(59.43% -0.0174 -0.1211)
OKLCH	oklch(59.43% 0.122 261.8)
XYZ	xyz(21.3852, 20.7203, 56.8942)
Luminance	0.2072 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557DC7 #C79F55

analogous

#55B6C7 #557DC7 #6655C7

triadic

#557DC7 #C7557D #7DC755

tetradic

#557DC7 #C755B6 #C79F55 #55C766

square

#557DC7 #C755B6 #C79F55 #55C766

split-complementary

#557DC7 #C76655 #B6C755

monochromatic

#28457A #375FA8 #557DC7 #83A0D6 #B1C3E5

Accessibility & contrast

On white

4.08

#557DC7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.14

#557DC7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557DC7

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557DC7	#FFFFFF	#000000	##000000
##557DC7	1.00	4.08	5.14	5.14
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.14	21.00	1.00	1.00
##000000	5.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E83CA

Deuteranopia (green-blind)

#5079C5

Tritanopia (blue-blind)

#008D98

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #557dc7;
/* rgb */ color: rgb(85, 125, 199);
/* oklch */ color: oklch(59.4% 0.122 261.8);

Tailwind

colors: {
  custom: {
    50: '#8da2d8',
    500: '#557dc7',
    950: '#000000',
  },
}

SCSS

$custom: #557dc7;
$custom-light: #8da2d8;
$custom-dark: #000000;

JSON

{
  "hex": "#557dc7",
  "rgb": {
    "r": 85,
    "g": 125,
    "b": 199
  },
  "hsl": {
    "h": 218.947,
    "s": 50.442,
    "l": 55.686
  },
  "oklch": {
    "l": 0.59429,
    "c": 0.12231,
    "h": 261.8
  },
  "luminance": 0.20722
}

Semantic roles & 50–950 ramp

primary

#557DC7

secondary

#D4C3A4

accent

#A94EDA

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0F14

muted

#7E7E83

Preview Lab

Preview with #557DC7

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

Preview Lab → · Contrast checker → · Palette generator →