#397B9D#397B9D

#397B9D is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.5% C 0.085 H 233.7°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#397B9D
RGB	rgb(57, 123, 157)
HSL	hsl(200, 47%, 42%)
HSV	hsv(200, 64%, 62%)
CMYK	cmyk(63.7%, 21.7%, 0%, 38.4%)
CIE-LAB	lab(48.85, -10.18, -24.52)
CIE-LCH	lch(48.85, 26.55, 247.45°)
OKLab	oklab(55.46% -0.0504 -0.0686)
OKLCH	oklch(55.46% 0.085 233.7)
XYZ	xyz(14.8538, 17.4686, 34.4807)
Luminance	0.1747 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397B9D #9D5B39

analogous

#399D8D #397B9D #39499D

triadic

#397B9D #9D397B #7B9D39

tetradic

#397B9D #8D399D #9D5B39 #499D39

square

#397B9D #8D399D #9D5B39 #499D39

split-complementary

#397B9D #9D3949 #9D8D39

monochromatic

#183543 #295870 #397B9D #539BC0 #80B5D1

Accessibility & contrast

On white

4.67

#397B9D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#397B9D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #397B9D

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397B9D	#FFFFFF	#000000	##FFFFFF
##397B9D	1.00	4.67	4.49	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B7A9F

Deuteranopia (green-blind)

#5D709C

Tritanopia (blue-blind)

#008486

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #397b9d;
/* rgb */ color: rgb(57, 123, 157);
/* oklch */ color: oklch(55.5% 0.085 233.7);

Tailwind

colors: {
  custom: {
    50: '#7aa1ba',
    500: '#397b9d',
    950: '#000000',
  },
}

SCSS

$custom: #397b9d;
$custom-light: #7aa1ba;
$custom-dark: #000000;

JSON

{
  "hex": "#397b9d",
  "rgb": {
    "r": 57,
    "g": 123,
    "b": 157
  },
  "hsl": {
    "h": 200.4,
    "s": 46.729,
    "l": 41.961
  },
  "oklch": {
    "l": 0.55461,
    "c": 0.08519,
    "h": 233.7
  },
  "luminance": 0.1747
}

Semantic roles & 50–950 ramp

primary

#397B9D

secondary

#BA8E78

accent

#7F51D6

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E11

muted

#7C7E80

Preview Lab

Preview with #397B9D

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

Preview Lab → · Contrast checker → · Palette generator →