#397F9F#397F9F

#397F9F is a mid, moderate cyan. Relative luminance 0.186; OKLCH L 56.5% C 0.086 H 230.7°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#397F9F
RGB	rgb(57, 127, 159)
HSL	hsl(199, 47%, 42%)
HSV	hsv(199, 64%, 62%)
CMYK	cmyk(64.2%, 20.1%, 0%, 37.6%)
CIE-LAB	lab(50.16, -11.80, -23.66)
CIE-LCH	lch(50.16, 26.44, 243.50°)
OKLab	oklab(56.53% -0.0541 -0.0662)
OKLCH	oklch(56.53% 0.086 230.7)
XYZ	xyz(15.5323, 18.5502, 35.5562)
Luminance	0.1855 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397F9F #9F5939

analogous

#399F8C #397F9F #394C9F

triadic

#397F9F #9F397F #7F9F39

tetradic

#397F9F #8C399F #9F5939 #4C9F39

square

#397F9F #8C399F #9F5939 #4C9F39

split-complementary

#397F9F #9F394C #9F8C39

monochromatic

#193745 #295B72 #397F9F #549FC2 #81B8D2

Accessibility & contrast

On white

4.46

#397F9F on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#397F9F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397F9F

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397F9F	#FFFFFF	#000000	##000000
##397F9F	1.00	4.46	4.71	4.71
#FFFFFF	4.46	1.00	21.00	21.00
#000000	4.71	21.00	1.00	1.00
##000000	4.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F7DA1

Deuteranopia (green-blind)

#61739F

Tritanopia (blue-blind)

#00888A

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #397f9f;
/* rgb */ color: rgb(57, 127, 159);
/* oklch */ color: oklch(56.5% 0.086 230.7);

Tailwind

colors: {
  custom: {
    50: '#7aa4bb',
    500: '#397f9f',
    950: '#000000',
  },
}

SCSS

$custom: #397f9f;
$custom-light: #7aa4bb;
$custom-dark: #000000;

JSON

{
  "hex": "#397f9f",
  "rgb": {
    "r": 57,
    "g": 127,
    "b": 159
  },
  "hsl": {
    "h": 198.824,
    "s": 47.222,
    "l": 42.353
  },
  "oklch": {
    "l": 0.56532,
    "c": 0.0855,
    "h": 230.7
  },
  "luminance": 0.18552
}

Semantic roles & 50–950 ramp

primary

#397F9F

secondary

#BB8D78

accent

#7B51D7

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#0A0F12

muted

#7C7F81

Preview Lab

Preview with #397F9F

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

Preview Lab → · Contrast checker → · Palette generator →