#397C8B#397C8B

#397C8B is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 54.9% C 0.071 H 214.5°. Best body text is #FFFFFF at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#397C8B
RGB	rgb(57, 124, 139)
HSL	hsl(191, 42%, 38%)
HSV	hsv(191, 59%, 55%)
CMYK	cmyk(59%, 10.8%, 0%, 45.5%)
CIE-LAB	lab(48.45, -16.56, -14.56)
CIE-LCH	lch(48.45, 22.06, 221.32°)
OKLab	oklab(54.91% -0.0587 -0.0404)
OKLCH	oklch(54.91% 0.071 214.5)
XYZ	xyz(13.5533, 17.1479, 27.0167)
Luminance	0.1715 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397C8B #8B4839

analogous

#398B71 #397C8B #39538B

triadic

#397C8B #8B397C #7C8B39

tetradic

#397C8B #71398B #8B4839 #538B39

square

#397C8B #71398B #8B4839 #538B39

split-complementary

#397C8B #8B3953 #8B7139

monochromatic

#152F34 #275560 #397C8B #4CA2B5 #77B9C7

Accessibility & contrast

On white

4.74

#397C8B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.43

#397C8B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #397C8B

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397C8B	#FFFFFF	#000000	##FFFFFF
##397C8B	1.00	4.74	4.43	4.74
#FFFFFF	4.74	1.00	21.00	1.00
#000000	4.43	21.00	1.00	21.00
##FFFFFF	4.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#71788C

Deuteranopia (green-blind)

#656F8B

Tritanopia (blue-blind)

#008281

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #397c8b;
/* rgb */ color: rgb(57, 124, 139);
/* oklch */ color: oklch(54.9% 0.071 214.5);

Tailwind

colors: {
  custom: {
    50: '#78a2ac',
    500: '#397c8b',
    950: '#000000',
  },
}

SCSS

$custom: #397c8b;
$custom-light: #78a2ac;
$custom-dark: #000000;

JSON

{
  "hex": "#397c8b",
  "rgb": {
    "r": 57,
    "g": 124,
    "b": 139
  },
  "hsl": {
    "h": 190.976,
    "s": 41.837,
    "l": 38.431
  },
  "oklch": {
    "l": 0.54907,
    "c": 0.07127,
    "h": 214.5
  },
  "luminance": 0.17149
}

Semantic roles & 50–950 ramp

primary

#397C8B

secondary

#B07B6F

accent

#6D56D2

background

#F7F9FA

surface

#EEF2F4

border

#C9CCCE

text

#090F10

muted

#7B7E7F

Preview Lab

Preview with #397C8B

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

Preview Lab → · Contrast checker → · Palette generator →