#397F9C#397F9C

#397F9C is a mid, moderate cyan. Relative luminance 0.184; OKLCH L 56.4% C 0.083 H 228.1°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#397F9C
RGB	rgb(57, 127, 156)
HSL	hsl(198, 46%, 42%)
HSV	hsv(198, 63%, 61%)
CMYK	cmyk(63.5%, 18.6%, 0%, 38.8%)
CIE-LAB	lab(50.03, -12.79, -22.10)
CIE-LCH	lch(50.03, 25.53, 239.95°)
OKLab	oklab(56.39% -0.0553 -0.0617)
OKLCH	oklch(56.39% 0.083 228.1)
XYZ	xyz(15.2751, 18.4474, 34.2017)
Luminance	0.1845 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397F9C #9C5639

analogous

#399C88 #397F9C #394E9C

triadic

#397F9C #9C397F #7F9C39

tetradic

#397F9C #88399C #9C5639 #4E9C39

square

#397F9C #88399C #9C5639 #4E9C39

split-complementary

#397F9C #9C394E #9C8839

monochromatic

#183642 #295B6F #397F9C #52A0C0 #7FB9D0

Accessibility & contrast

On white

4.48

#397F9C on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#397F9C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397F9C

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397F9C	#FFFFFF	#000000	##000000
##397F9C	1.00	4.48	4.69	4.69
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#707D9D

Deuteranopia (green-blind)

#62739C

Tritanopia (blue-blind)

#008788

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #397f9c;
/* rgb */ color: rgb(57, 127, 156);
/* oklch */ color: oklch(56.4% 0.083 228.1);

Tailwind

colors: {
  custom: {
    50: '#7aa4b9',
    500: '#397f9c',
    950: '#000000',
  },
}

SCSS

$custom: #397f9c;
$custom-light: #7aa4b9;
$custom-dark: #000000;

JSON

{
  "hex": "#397f9c",
  "rgb": {
    "r": 57,
    "g": 127,
    "b": 156
  },
  "hsl": {
    "h": 197.576,
    "s": 46.479,
    "l": 41.765
  },
  "oklch": {
    "l": 0.56394,
    "c": 0.08285,
    "h": 228.1
  },
  "luminance": 0.18449
}

Semantic roles & 50–950 ramp

primary

#397F9C

secondary

#BA8B77

accent

#7852D6

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#0A0F11

muted

#7C7F80

Preview Lab

Preview with #397F9C

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

Preview Lab → · Contrast checker → · Palette generator →