#557FC1#557FC1

#557FC1 is a mid, moderate blue. Relative luminance 0.210; OKLCH L 59.5% C 0.112 H 259.1°. Best body text is #000000 at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#557FC1
RGB	rgb(85, 127, 193)
HSL	hsl(217, 47%, 55%)
HSV	hsv(217, 56%, 76%)
CMYK	cmyk(56%, 34.2%, 0%, 24.3%)
CIE-LAB	lab(52.90, 5.07, -38.90)
CIE-LCH	lch(52.90, 39.23, 277.42°)
OKLab	oklab(59.53% -0.0211 -0.1099)
OKLCH	oklch(59.53% 0.112 259.1)
XYZ	xyz(20.9580, 20.9586, 53.3827)
Luminance	0.2096 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557FC1 #C19755

analogous

#55B5C1 #557FC1 #6155C1

triadic

#557FC1 #C1557F #7FC155

tetradic

#557FC1 #C155B5 #C19755 #55C161

square

#557FC1 #C155B5 #C19755 #55C161

split-complementary

#557FC1 #C16155 #B5C155

monochromatic

#2A4672 #3A619F #557FC1 #82A1D1 #AFC3E2

Accessibility & contrast

On white

4.04

#557FC1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.19

#557FC1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557FC1

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557FC1	#FFFFFF	#000000	##000000
##557FC1	1.00	4.04	5.19	5.19
#FFFFFF	4.04	1.00	21.00	21.00
#000000	5.19	21.00	1.00	1.00
##000000	5.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6484C4

Deuteranopia (green-blind)

#577AC0

Tritanopia (blue-blind)

#088E97

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #557fc1;
/* rgb */ color: rgb(85, 127, 193);
/* oklch */ color: oklch(59.5% 0.112 259.1);

Tailwind

colors: {
  custom: {
    50: '#8ca3d4',
    500: '#557fc1',
    950: '#000000',
  },
}

SCSS

$custom: #557fc1;
$custom-light: #8ca3d4;
$custom-dark: #000000;

JSON

{
  "hex": "#557fc1",
  "rgb": {
    "r": 85,
    "g": 127,
    "b": 193
  },
  "hsl": {
    "h": 216.667,
    "s": 46.552,
    "l": 54.51
  },
  "oklch": {
    "l": 0.59534,
    "c": 0.11187,
    "h": 259.1
  },
  "luminance": 0.2096
}

Semantic roles & 50–950 ramp

primary

#557FC1

secondary

#D0BEA2

accent

#A352D6

background

#F9FAFD

surface

#F1F3FA

border

#CBCDD3

text

#0D0F14

muted

#7E7F83

Preview Lab

Preview with #557FC1

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

Preview Lab → · Contrast checker → · Palette generator →