#557EC4#557EC4

#557EC4 is a mid, moderate blue. Relative luminance 0.208; OKLCH L 59.5% C 0.117 H 260.6°. Best body text is #000000 at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#557EC4
RGB	rgb(85, 126, 196)
HSL	hsl(218, 48%, 55%)
HSV	hsv(218, 57%, 77%)
CMYK	cmyk(56.6%, 35.7%, 0%, 23.1%)
CIE-LAB	lab(52.77, 6.65, -40.83)
CIE-LCH	lch(52.77, 41.37, 279.25°)
OKLab	oklab(59.48% -0.0192 -0.1155)
OKLCH	oklch(59.48% 0.117 260.6)
XYZ	xyz(21.1675, 20.8368, 55.1203)
Luminance	0.2084 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557EC4 #C49B55

analogous

#55B5C4 #557EC4 #6355C4

triadic

#557EC4 #C4557E #7EC455

tetradic

#557EC4 #C455B5 #C49B55 #55C463

square

#557EC4 #C455B5 #C49B55 #55C463

split-complementary

#557EC4 #C46355 #B5C455

monochromatic

#294576 #3960A3 #557EC4 #82A0D4 #B0C3E4

Accessibility & contrast

On white

4.06

#557EC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.17

#557EC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557EC4

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557EC4	#FFFFFF	#000000	##000000
##557EC4	1.00	4.06	5.17	5.17
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.17	21.00	1.00	1.00
##000000	5.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6184C7

Deuteranopia (green-blind)

#5379C3

Tritanopia (blue-blind)

#008E98

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #557ec4;
/* rgb */ color: rgb(85, 126, 196);
/* oklch */ color: oklch(59.5% 0.117 260.6);

Tailwind

colors: {
  custom: {
    50: '#8da3d6',
    500: '#557ec4',
    950: '#000000',
  },
}

SCSS

$custom: #557ec4;
$custom-light: #8da3d6;
$custom-dark: #000000;

JSON

{
  "hex": "#557ec4",
  "rgb": {
    "r": 85,
    "g": 126,
    "b": 196
  },
  "hsl": {
    "h": 217.838,
    "s": 48.472,
    "l": 55.098
  },
  "oklch": {
    "l": 0.59479,
    "c": 0.11706,
    "h": 260.6
  },
  "luminance": 0.20839
}

Semantic roles & 50–950 ramp

primary

#557EC4

secondary

#D2C0A3

accent

#A650D8

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0F14

muted

#7E7E83

Preview Lab

Preview with #557EC4

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

Preview Lab → · Contrast checker → · Palette generator →