#57739C#57739C

#57739C is a mid, moderate blue. Relative luminance 0.167; OKLCH L 55.1% C 0.072 H 257.8°. Best body text is #FFFFFF at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#57739C
RGB	rgb(87, 115, 156)
HSL	hsl(216, 28%, 48%)
HSV	hsv(216, 44%, 61%)
CMYK	cmyk(44.2%, 26.3%, 0%, 38.8%)
CIE-LAB	lab(47.86, 1.15, -25.34)
CIE-LCH	lch(47.86, 25.36, 272.60°)
OKLab	oklab(55.07% -0.0153 -0.0706)
OKLCH	oklch(55.07% 0.072 257.8)
XYZ	xyz(16.0600, 16.6870, 33.8207)
Luminance	0.1669 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57739C #9C8057

analogous

#57959C #57739C #5D579C

triadic

#57739C #9C5773 #739C57

tetradic

#57739C #9C5795 #9C8057 #579C5D

square

#57739C #9C5795 #9C8057 #579C5D

split-complementary

#57739C #9C5D57 #959C57

monochromatic

#2B394D #415675 #57739C #7B93B5 #A2B3CB

Accessibility & contrast

On white

4.84

#57739C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.34

#57739C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #57739C

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57739C	#FFFFFF	#000000	##FFFFFF
##57739C	1.00	4.84	4.34	4.84
#FFFFFF	4.84	1.00	21.00	1.00
#000000	4.34	21.00	1.00	21.00
##FFFFFF	4.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#64759E

Deuteranopia (green-blind)

#5C6F9B

Tritanopia (blue-blind)

#3D7C81

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #57739c;
/* rgb */ color: rgb(87, 115, 156);
/* oklch */ color: oklch(55.1% 0.072 257.8);

Tailwind

colors: {
  custom: {
    50: '#899bb9',
    500: '#57739c',
    950: '#000000',
  },
}

SCSS

$custom: #57739c;
$custom-light: #899bb9;
$custom-dark: #000000;

JSON

{
  "hex": "#57739c",
  "rgb": {
    "r": 87,
    "g": 115,
    "b": 156
  },
  "hsl": {
    "h": 215.652,
    "s": 28.395,
    "l": 47.647
  },
  "oklch": {
    "l": 0.55065,
    "c": 0.07227,
    "h": 257.8
  },
  "luminance": 0.16688
}

Semantic roles & 50–950 ramp

primary

#57739C

secondary

#B9AB96

accent

#9D63C5

background

#F8F9FB

surface

#F0F2F6

border

#CBCCD0

text

#0C0E11

muted

#7D7E80

Preview Lab

Preview with #57739C

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

Preview Lab → · Contrast checker → · Palette generator →