#57739D#57739D

#57739D is a mid, moderate blue. Relative luminance 0.167; OKLCH L 55.1% C 0.074 H 258.3°. Best body text is #FFFFFF at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#57739D
RGB	rgb(87, 115, 157)
HSL	hsl(216, 29%, 48%)
HSV	hsv(216, 45%, 62%)
CMYK	cmyk(44.6%, 26.8%, 0%, 38.4%)
CIE-LAB	lab(47.91, 1.45, -25.86)
CIE-LCH	lch(47.91, 25.90, 273.21°)
OKLab	oklab(55.11% -0.0149 -0.0721)
OKLCH	oklch(55.11% 0.074 258.3)
XYZ	xyz(16.1450, 16.7211, 34.2685)
Luminance	0.1672 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57739D #9D8157

analogous

#57969D #57739D #5E579D

triadic

#57739D #9D5773 #739D57

tetradic

#57739D #9D5796 #9D8157 #579D5E

square

#57739D #9D5796 #9D8157 #579D5E

split-complementary

#57739D #9D5E57 #969D57

monochromatic

#2B394E #415676 #57739D #7B93B6 #A3B3CC

Accessibility & contrast

On white

4.83

#57739D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#57739D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #57739D

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57739D	#FFFFFF	#000000	##FFFFFF
##57739D	1.00	4.83	4.34	4.83
#FFFFFF	4.83	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#63759F

Deuteranopia (green-blind)

#5B6F9C

Tritanopia (blue-blind)

#3D7C82

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #57739d;
/* rgb */ color: rgb(87, 115, 157);
/* oklch */ color: oklch(55.1% 0.074 258.3);

Tailwind

colors: {
  custom: {
    50: '#8a9bba',
    500: '#57739d',
    950: '#000000',
  },
}

SCSS

$custom: #57739d;
$custom-light: #8a9bba;
$custom-dark: #000000;

JSON

{
  "hex": "#57739d",
  "rgb": {
    "r": 87,
    "g": 115,
    "b": 157
  },
  "hsl": {
    "h": 216,
    "s": 28.689,
    "l": 47.843
  },
  "oklch": {
    "l": 0.55114,
    "c": 0.07366,
    "h": 258.3
  },
  "luminance": 0.16722
}

Semantic roles & 50–950 ramp

primary

#57739D

secondary

#B9AB96

accent

#9E63C5

background

#F8F9FB

surface

#F0F2F6

border

#CBCCD0

text

#0C0E11

muted

#7D7E80

Preview Lab

Preview with #57739D

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

Preview Lab → · Contrast checker → · Palette generator →