#557FC3#557FC3

#557FC3 is a mid, moderate blue. Relative luminance 0.210; OKLCH L 59.6% C 0.115 H 259.6°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#557FC3
RGB	rgb(85, 127, 195)
HSL	hsl(217, 48%, 55%)
HSV	hsv(217, 56%, 76%)
CMYK	cmyk(56.4%, 34.9%, 0%, 23.5%)
CIE-LAB	lab(53.00, 5.72, -39.89)
CIE-LCH	lch(53.00, 40.30, 278.16°)
OKLab	oklab(59.64% -0.0206 -0.1127)
OKLCH	oklch(59.64% 0.115 259.6)
XYZ	xyz(21.1826, 21.0485, 54.5657)
Luminance	0.2105 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557FC3 #C39955

analogous

#55B6C3 #557FC3 #6255C3

triadic

#557FC3 #C3557F #7FC355

tetradic

#557FC3 #C355B6 #C39955 #55C362

square

#557FC3 #C355B6 #C39955 #55C362

split-complementary

#557FC3 #C36255 #B6C355

monochromatic

#294674 #3961A2 #557FC3 #82A1D3 #AFC3E3

Accessibility & contrast

On white

4.03

#557FC3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.21

#557FC3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557FC3

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557FC3	#FFFFFF	#000000	##000000
##557FC3	1.00	4.03	5.21	5.21
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.21	21.00	1.00	1.00
##000000	5.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6384C6

Deuteranopia (green-blind)

#557AC2

Tritanopia (blue-blind)

#018E98

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #557fc3;
/* rgb */ color: rgb(85, 127, 195);
/* oklch */ color: oklch(59.6% 0.115 259.6);

Tailwind

colors: {
  custom: {
    50: '#8da3d5',
    500: '#557fc3',
    950: '#000000',
  },
}

SCSS

$custom: #557fc3;
$custom-light: #8da3d5;
$custom-dark: #000000;

JSON

{
  "hex": "#557fc3",
  "rgb": {
    "r": 85,
    "g": 127,
    "b": 195
  },
  "hsl": {
    "h": 217.091,
    "s": 47.826,
    "l": 54.902
  },
  "oklch": {
    "l": 0.59643,
    "c": 0.11459,
    "h": 259.6
  },
  "luminance": 0.2105
}

Semantic roles & 50–950 ramp

primary

#557FC3

secondary

#D1BFA3

accent

#A450D7

background

#F9FAFD

surface

#F1F3FA

border

#CBCDD3

text

#0D0F14

muted

#7E7F83

Preview Lab

Preview with #557FC3

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

Preview Lab → · Contrast checker → · Palette generator →