#557BBE#557BBE

#557BBE is a mid, moderate blue. Relative luminance 0.198; OKLCH L 58.5% C 0.112 H 261.1°. Best body text is #000000 at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#557BBE
RGB	rgb(85, 123, 190)
HSL	hsl(218, 45%, 54%)
HSV	hsv(218, 55%, 75%)
CMYK	cmyk(55.3%, 35.3%, 0%, 25.5%)
CIE-LAB	lab(51.63, 6.50, -39.20)
CIE-LCH	lch(51.63, 39.74, 279.42°)
OKLab	oklab(58.49% -0.0173 -0.1108)
OKLCH	oklch(58.49% 0.112 261.1)
XYZ	xyz(20.1204, 19.8133, 51.4693)
Luminance	0.1981 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557BBE #BE9855

analogous

#55B0BE #557BBE #6455BE

triadic

#557BBE #BE557B #7BBE55

tetradic

#557BBE #BE55B0 #BE9855 #55BE64

square

#557BBE #BE55B0 #BE9855 #55BE64

split-complementary

#557BBE #BE6455 #B0BE55

monochromatic

#2A436E #3B5E9B #557BBE #819DCF #AEC0E0

Accessibility & contrast

On white

4.23

#557BBE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.96

#557BBE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557BBE

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557BBE	#FFFFFF	#000000	##000000
##557BBE	1.00	4.23	4.96	4.96
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.96	21.00	1.00	1.00
##000000	4.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6080C1

Deuteranopia (green-blind)

#5377BD

Tritanopia (blue-blind)

#148A93

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #557bbe;
/* rgb */ color: rgb(85, 123, 190);
/* oklch */ color: oklch(58.5% 0.112 261.1);

Tailwind

colors: {
  custom: {
    50: '#8ca0d2',
    500: '#557bbe',
    950: '#000000',
  },
}

SCSS

$custom: #557bbe;
$custom-light: #8ca0d2;
$custom-dark: #000000;

JSON

{
  "hex": "#557bbe",
  "rgb": {
    "r": 85,
    "g": 123,
    "b": 190
  },
  "hsl": {
    "h": 218.286,
    "s": 44.681,
    "l": 53.922
  },
  "oklch": {
    "l": 0.5849,
    "c": 0.1121,
    "h": 261.1
  },
  "luminance": 0.19815
}

Semantic roles & 50–950 ramp

primary

#557BBE

secondary

#CEBEA1

accent

#A653D4

background

#F9F9FC

surface

#F1F2F9

border

#CBCCD2

text

#0D0E14

muted

#7E7E82

Preview Lab

Preview with #557BBE

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

Preview Lab → · Contrast checker → · Palette generator →