#557BCE#557BCE

#557BCE is a mid, vivid blue. Relative luminance 0.206; OKLCH L 59.4% C 0.134 H 264.2°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#557BCE
RGB	rgb(85, 123, 206)
HSL	hsl(221, 55%, 57%)
HSV	hsv(221, 59%, 81%)
CMYK	cmyk(58.7%, 40.3%, 0%, 19.2%)
CIE-LAB	lab(52.46, 11.77, -47.02)
CIE-LCH	lch(52.46, 48.47, 284.06°)
OKLab	oklab(59.4% -0.0136 -0.1336)
OKLCH	oklch(59.4% 0.134 264.2)
XYZ	xyz(21.9660, 20.5516, 61.1899)
Luminance	0.2055 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557BCE #CEA855

analogous

#55B8CE #557BCE #6C55CE

triadic

#557BCE #CE557B #7BCE55

tetradic

#557BCE #CE55B8 #CEA855 #55CE6C

square

#557BCE #CE55B8 #CEA855 #55CE6C

split-complementary

#557BCE #CE6C55 #B8CE55

monochromatic

#264383 #335BB2 #557BCE #85A0DC #B4C5E9

Accessibility & contrast

On white

4.11

#557BCE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#557BCE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557BCE

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557BCE	#FFFFFF	#000000	##000000
##557BCE	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5783D1

Deuteranopia (green-blind)

#4778CC

Tritanopia (blue-blind)

#008D9A

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #557bce;
/* rgb */ color: rgb(85, 123, 206);
/* oklch */ color: oklch(59.4% 0.134 264.2);

Tailwind

colors: {
  custom: {
    50: '#8ea0dd',
    500: '#557bce',
    950: '#000000',
  },
}

SCSS

$custom: #557bce;
$custom-light: #8ea0dd;
$custom-dark: #000000;

JSON

{
  "hex": "#557bce",
  "rgb": {
    "r": 85,
    "g": 123,
    "b": 206
  },
  "hsl": {
    "h": 221.157,
    "s": 55.251,
    "l": 57.059
  },
  "oklch": {
    "l": 0.59404,
    "c": 0.13429,
    "h": 264.2
  },
  "luminance": 0.20553
}

Semantic roles & 50–950 ramp

primary

#557BCE

secondary

#D8C9A7

accent

#B049DF

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #557BCE

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

Preview Lab → · Contrast checker → · Palette generator →