#397B99#397B99

#397B99 is a mid, moderate cyan. Relative luminance 0.173; OKLCH L 55.3% C 0.081 H 230.3°. Best body text is #FFFFFF at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#397B99
RGB	rgb(57, 123, 153)
HSL	hsl(199, 46%, 41%)
HSV	hsv(199, 63%, 60%)
CMYK	cmyk(62.7%, 19.6%, 0%, 40%)
CIE-LAB	lab(48.68, -11.51, -22.44)
CIE-LCH	lch(48.68, 25.22, 242.84°)
OKLab	oklab(55.27% -0.0519 -0.0627)
OKLCH	oklch(55.27% 0.081 230.3)
XYZ	xyz(14.5178, 17.3342, 32.7116)
Luminance	0.1734 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397B99 #995739

analogous

#399987 #397B99 #394B99

triadic

#397B99 #99397B #7B9939

tetradic

#397B99 #873999 #995739 #4B9939

square

#397B99 #873999 #995739 #4B9939

split-complementary

#397B99 #99394B #998739

monochromatic

#183340 #28576C #397B99 #519CBE #7EB5CF

Accessibility & contrast

On white

4.70

#397B99 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.47

#397B99 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #397B99

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397B99	#FFFFFF	#000000	##FFFFFF
##397B99	1.00	4.70	4.47	4.70
#FFFFFF	4.70	1.00	21.00	1.00
#000000	4.47	21.00	1.00	21.00
##FFFFFF	4.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C799A

Deuteranopia (green-blind)

#5E6F99

Tritanopia (blue-blind)

#008385

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #397b99;
/* rgb */ color: rgb(57, 123, 153);
/* oklch */ color: oklch(55.3% 0.081 230.3);

Tailwind

colors: {
  custom: {
    50: '#79a1b7',
    500: '#397b99',
    950: '#000000',
  },
}

SCSS

$custom: #397b99;
$custom-light: #79a1b7;
$custom-dark: #000000;

JSON

{
  "hex": "#397b99",
  "rgb": {
    "r": 57,
    "g": 123,
    "b": 153
  },
  "hsl": {
    "h": 198.75,
    "s": 45.714,
    "l": 41.176
  },
  "oklch": {
    "l": 0.55273,
    "c": 0.08141,
    "h": 230.3
  },
  "luminance": 0.17336
}

Semantic roles & 50–950 ramp

primary

#397B99

secondary

#B88A76

accent

#7B52D5

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E11

muted

#7C7E80

Preview Lab

Preview with #397B99

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

Preview Lab → · Contrast checker → · Palette generator →