#397C8F#397C8F

#397C8F is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.1% C 0.074 H 219.1°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#397C8F
RGB	rgb(57, 124, 143)
HSL	hsl(193, 43%, 39%)
HSV	hsv(193, 60%, 56%)
CMYK	cmyk(60.1%, 13.3%, 0%, 43.9%)
CIE-LAB	lab(48.59, -15.31, -16.69)
CIE-LCH	lch(48.59, 22.65, 227.48°)
OKLab	oklab(55.08% -0.0571 -0.0464)
OKLCH	oklch(55.08% 0.074 219.1)
XYZ	xyz(13.8510, 17.2670, 28.5842)
Luminance	0.1727 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397C8F #8F4C39

analogous

#398F77 #397C8F #39518F

triadic

#397C8F #8F397C #7C8F39

tetradic

#397C8F #77398F #8F4C39 #518F39

square

#397C8F #77398F #8F4C39 #518F39

split-complementary

#397C8F #8F3951 #8F7739

monochromatic

#163037 #285663 #397C8F #4DA0B8 #79B8CA

Accessibility & contrast

On white

4.72

#397C8F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#397C8F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #397C8F

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397C8F	#FFFFFF	#000000	##FFFFFF
##397C8F	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#707990

Deuteranopia (green-blind)

#636F8F

Tritanopia (blue-blind)

#008282

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #397c8f;
/* rgb */ color: rgb(57, 124, 143);
/* oklch */ color: oklch(55.1% 0.074 219.1);

Tailwind

colors: {
  custom: {
    50: '#78a2af',
    500: '#397c8f',
    950: '#000000',
  },
}

SCSS

$custom: #397c8f;
$custom-light: #78a2af;
$custom-dark: #000000;

JSON

{
  "hex": "#397c8f",
  "rgb": {
    "r": 57,
    "g": 124,
    "b": 143
  },
  "hsl": {
    "h": 193.256,
    "s": 43,
    "l": 39.216
  },
  "oklch": {
    "l": 0.55075,
    "c": 0.07353,
    "h": 219.1
  },
  "luminance": 0.17268
}

Semantic roles & 50–950 ramp

primary

#397C8F

secondary

#B38071

accent

#7155D3

background

#F7F9FA

surface

#EEF2F4

border

#C9CCCE

text

#090F10

muted

#7B7E7F

Preview Lab

Preview with #397C8F

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

Preview Lab → · Contrast checker → · Palette generator →