#397D99#397D99

#397D99 is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 55.8% C 0.081 H 227.9°. Best body text is #FFFFFF at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#397D99
RGB	rgb(57, 125, 153)
HSL	hsl(198, 46%, 41%)
HSV	hsv(198, 63%, 60%)
CMYK	cmyk(62.7%, 18.3%, 0%, 40%)
CIE-LAB	lab(49.30, -12.64, -21.48)
CIE-LCH	lch(49.30, 24.93, 239.52°)
OKLab	oklab(55.77% -0.0542 -0.06)
OKLCH	oklch(55.77% 0.081 227.9)
XYZ	xyz(14.7685, 17.8355, 32.7951)
Luminance	0.1784 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397D99 #995539

analogous

#399985 #397D99 #394D99

triadic

#397D99 #99397D #7D9939

tetradic

#397D99 #853999 #995539 #4D9939

square

#397D99 #853999 #995539 #4D9939

split-complementary

#397D99 #99394D #998539

monochromatic

#183440 #28596C #397D99 #519EBE #7EB7CF

Accessibility & contrast

On white

4.60

#397D99 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#397D99 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #397D99

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397D99	#FFFFFF	#000000	##FFFFFF
##397D99	1.00	4.60	4.57	4.60
#FFFFFF	4.60	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E7B9A

Deuteranopia (green-blind)

#617199

Tritanopia (blue-blind)

#008586

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #397d99;
/* rgb */ color: rgb(57, 125, 153);
/* oklch */ color: oklch(55.8% 0.081 227.9);

Tailwind

colors: {
  custom: {
    50: '#79a2b7',
    500: '#397d99',
    950: '#000000',
  },
}

SCSS

$custom: #397d99;
$custom-light: #79a2b7;
$custom-dark: #000000;

JSON

{
  "hex": "#397d99",
  "rgb": {
    "r": 57,
    "g": 125,
    "b": 153
  },
  "hsl": {
    "h": 197.5,
    "s": 45.714,
    "l": 41.176
  },
  "oklch": {
    "l": 0.55765,
    "c": 0.08083,
    "h": 227.9
  },
  "luminance": 0.17837
}

Semantic roles & 50–950 ramp

primary

#397D99

secondary

#B88976

accent

#7952D5

background

#F7FAFB

surface

#EEF3F6

border

#C9CDD0

text

#0A0F11

muted

#7C7F80

Preview Lab

Preview with #397D99

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

Preview Lab → · Contrast checker → · Palette generator →