#557BC3#557BC3

#557BC3 is a mid, moderate blue. Relative luminance 0.200; OKLCH L 58.8% C 0.119 H 262.2°. Best body text is #000000 at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#557BC3
RGB	rgb(85, 123, 195)
HSL	hsl(219, 48%, 55%)
HSV	hsv(219, 56%, 76%)
CMYK	cmyk(56.4%, 36.9%, 0%, 23.5%)
CIE-LAB	lab(51.88, 8.13, -41.67)
CIE-LCH	lch(51.88, 42.45, 281.05°)
OKLab	oklab(58.77% -0.0161 -0.1179)
OKLCH	oklch(58.77% 0.119 262.2)
XYZ	xyz(20.6762, 20.0357, 54.3969)
Luminance	0.2004 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557BC3 #C39D55

analogous

#55B2C3 #557BC3 #6655C3

triadic

#557BC3 #C3557B #7BC355

tetradic

#557BC3 #C355B2 #C39D55 #55C366

square

#557BC3 #C355B2 #C39D55 #55C366

split-complementary

#557BC3 #C36655 #B2C355

monochromatic

#294374 #395DA2 #557BC3 #829ED3 #AFC1E3

Accessibility & contrast

On white

4.19

#557BC3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.01

#557BC3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557BC3

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557BC3	#FFFFFF	#000000	##000000
##557BC3	1.00	4.19	5.01	5.01
#FFFFFF	4.19	1.00	21.00	21.00
#000000	5.01	21.00	1.00	1.00
##000000	5.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D81C6

Deuteranopia (green-blind)

#5077C1

Tritanopia (blue-blind)

#048B96

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #557bc3;
/* rgb */ color: rgb(85, 123, 195);
/* oklch */ color: oklch(58.8% 0.119 262.2);

Tailwind

colors: {
  custom: {
    50: '#8da0d5',
    500: '#557bc3',
    950: '#000000',
  },
}

SCSS

$custom: #557bc3;
$custom-light: #8da0d5;
$custom-dark: #000000;

JSON

{
  "hex": "#557bc3",
  "rgb": {
    "r": 85,
    "g": 123,
    "b": 195
  },
  "hsl": {
    "h": 219.273,
    "s": 47.826,
    "l": 54.902
  },
  "oklch": {
    "l": 0.58769,
    "c": 0.11904,
    "h": 262.2
  },
  "luminance": 0.20037
}

Semantic roles & 50–950 ramp

primary

#557BC3

secondary

#D1C1A3

accent

#A950D7

background

#F9F9FD

surface

#F1F2FA

border

#CBCCD3

text

#0D0E14

muted

#7E7E83

Preview Lab

Preview with #557BC3

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

Preview Lab → · Contrast checker → · Palette generator →