#57738B#57738B

#57738B is a mid, muted cyan. Relative luminance 0.162; OKLCH L 54.3% C 0.050 H 244.8°. Best body text is #FFFFFF at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#57738B
RGB	rgb(87, 115, 139)
HSL	hsl(208, 23%, 44%)
HSV	hsv(208, 37%, 55%)
CMYK	cmyk(37.4%, 17.3%, 0%, 45.5%)
CIE-LAB	lab(47.17, -3.78, -16.36)
CIE-LCH	lch(47.17, 16.80, 256.98°)
OKLab	oklab(54.29% -0.0213 -0.0451)
OKLCH	oklch(54.29% 0.05 244.8)
XYZ	xyz(14.7199, 16.1510, 26.7629)
Luminance	0.1615 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57738B #8B6F57

analogous

#578B89 #57738B #57598B

triadic

#57738B #8B5773 #738B57

tetradic

#57738B #89578B #8B6F57 #598B57

square

#57738B #89578B #8B6F57 #598B57

split-complementary

#57738B #8B5759 #8B8957

monochromatic

#283540 #3F5465 #57738B #7692A9 #9CB0C1

Accessibility & contrast

On white

4.96

#57738B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#57738B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #57738B

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57738B	#FFFFFF	#000000	##FFFFFF
##57738B	1.00	4.96	4.23	4.96
#FFFFFF	4.96	1.00	21.00	1.00
#000000	4.23	21.00	1.00	21.00
##FFFFFF	4.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#69738C

Deuteranopia (green-blind)

#636D8B

Tritanopia (blue-blind)

#45797B

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #57738b;
/* rgb */ color: rgb(87, 115, 139);
/* oklch */ color: oklch(54.3% 0.050 244.8);

Tailwind

colors: {
  custom: {
    50: '#889bad',
    500: '#57738b',
    950: '#000000',
  },
}

SCSS

$custom: #57738b;
$custom-light: #889bad;
$custom-dark: #000000;

JSON

{
  "hex": "#57738b",
  "rgb": {
    "r": 87,
    "g": 115,
    "b": 139
  },
  "hsl": {
    "h": 207.692,
    "s": 23.009,
    "l": 44.314
  },
  "oklch": {
    "l": 0.54294,
    "c": 0.04987,
    "h": 244.8
  },
  "luminance": 0.16152
}

Semantic roles & 50–950 ramp

primary

#57738B

secondary

#AE9E8F

accent

#9168BF

background

#F8F9FA

surface

#F0F2F4

border

#CBCCCE

text

#0B0E10

muted

#7C7E7F

Preview Lab

Preview with #57738B

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

Preview Lab → · Contrast checker → · Palette generator →