#557ABF#557ABF

#557ABF is a mid, moderate blue. Relative luminance 0.196; OKLCH L 58.3% C 0.115 H 262.0°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#557ABF
RGB	rgb(85, 122, 191)
HSL	hsl(219, 45%, 54%)
HSV	hsv(219, 55%, 75%)
CMYK	cmyk(55.5%, 36.1%, 0%, 25.1%)
CIE-LAB	lab(51.39, 7.43, -40.14)
CIE-LCH	lch(51.39, 40.82, 280.49°)
OKLab	oklab(58.33% -0.0159 -0.1135)
OKLCH	oklch(58.33% 0.115 262)
XYZ	xyz(20.1066, 19.6104, 52.0057)
Luminance	0.1961 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#557ABF #BF9A55

analogous

#55AFBF #557ABF #6555BF

triadic

#557ABF #BF557A #7ABF55

tetradic

#557ABF #BF55AF #BF9A55 #55BF65

square

#557ABF #BF55AF #BF9A55 #55BF65

split-complementary

#557ABF #BF6555 #AFBF55

monochromatic

#2A4270 #3B5D9C #557ABF #819DD0 #AEC0E0

Accessibility & contrast

On white

4.27

#557ABF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#557ABF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #557ABF

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##557ABF	#FFFFFF	#000000	##000000
##557ABF	1.00	4.27	4.92	4.92
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E80C2

Deuteranopia (green-blind)

#5176BE

Tritanopia (blue-blind)

#128993

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #557abf;
/* rgb */ color: rgb(85, 122, 191);
/* oklch */ color: oklch(58.3% 0.115 262.0);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#557abf",
  "rgb": {
    "r": 85,
    "g": 122,
    "b": 191
  },
  "hsl": {
    "h": 219.057,
    "s": 45.299,
    "l": 54.118
  },
  "oklch": {
    "l": 0.58327,
    "c": 0.11461,
    "h": 262
  },
  "luminance": 0.19612
}

Semantic roles & 50–950 ramp

primary

#557ABF

secondary

#CEBFA1

accent

#A853D5

background

#F9F9FC

surface

#F1F2F9

border

#CBCCD2

text

#0D0E14

muted

#7E7E82

Preview Lab

Preview with #557ABF

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

Preview Lab → · Contrast checker → · Palette generator →