#397E99#397E99

#397E99 is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.0% C 0.081 H 226.6°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#397E99
RGB	rgb(57, 126, 153)
HSL	hsl(197, 46%, 41%)
HSV	hsv(197, 63%, 60%)
CMYK	cmyk(62.7%, 17.6%, 0%, 40%)
CIE-LAB	lab(49.61, -13.21, -21.01)
CIE-LCH	lch(49.61, 24.82, 237.85°)
OKLab	oklab(56.01% -0.0553 -0.0586)
OKLCH	oklch(56.01% 0.081 226.6)
XYZ	xyz(14.8957, 18.0900, 32.8375)
Luminance	0.1809 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397E99 #995439

analogous

#399984 #397E99 #394E99

triadic

#397E99 #99397E #7E9939

tetradic

#397E99 #843999 #995439 #4E9939

square

#397E99 #843999 #995439 #4E9939

split-complementary

#397E99 #99394E #998439

monochromatic

#183540 #28596C #397E99 #519FBE #7EB8CF

Accessibility & contrast

On white

4.55

#397E99 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#397E99 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397E99

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397E99	#FFFFFF	#000000	##000000
##397E99	1.00	4.55	4.62	4.62
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#707C9A

Deuteranopia (green-blind)

#627299

Tritanopia (blue-blind)

#008687

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #397e99;
/* rgb */ color: rgb(57, 126, 153);
/* oklch */ color: oklch(56.0% 0.081 226.6);

Tailwind

colors: {
  custom: {
    50: '#79a3b7',
    500: '#397e99',
    950: '#000000',
  },
}

SCSS

$custom: #397e99;
$custom-light: #79a3b7;
$custom-dark: #000000;

JSON

{
  "hex": "#397e99",
  "rgb": {
    "r": 57,
    "g": 126,
    "b": 153
  },
  "hsl": {
    "h": 196.875,
    "s": 45.714,
    "l": 41.176
  },
  "oklch": {
    "l": 0.56012,
    "c": 0.08059,
    "h": 226.6
  },
  "luminance": 0.18091
}

Semantic roles & 50–950 ramp

primary

#397E99

secondary

#B88876

accent

#7752D5

background

#F7FAFB

surface

#EEF3F6

border

#C9CDD0

text

#0A0F11

muted

#7C7F80

Preview Lab

Preview with #397E99

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

Preview Lab → · Contrast checker → · Palette generator →