#397BA8#397BA8

#397BA8 is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 56.0% C 0.097 H 241.3°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#397BA8
RGB	rgb(57, 123, 168)
HSL	hsl(204, 49%, 44%)
HSV	hsv(204, 66%, 66%)
CMYK	cmyk(66.1%, 26.8%, 0%, 34.1%)
CIE-LAB	lab(49.33, -6.46, -30.19)
CIE-LCH	lch(49.33, 30.87, 257.93°)
OKLab	oklab(56% -0.0466 -0.085)
OKLCH	oklch(56% 0.097 241.3)
XYZ	xyz(15.8355, 17.8613, 39.6512)
Luminance	0.1786 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397BA8 #A86639

analogous

#39A89E #397BA8 #3944A8

triadic

#397BA8 #A8397B #7BA839

tetradic

#397BA8 #9E39A8 #A86639 #44A839

square

#397BA8 #9E39A8 #A86639 #44A839

split-complementary

#397BA8 #A83944 #A89E39

monochromatic

#1A384D #295A7A #397BA8 #589AC6 #86B5D6

Accessibility & contrast

On white

4.59

#397BA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.57

#397BA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #397BA8

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397BA8	#FFFFFF	#000000	##FFFFFF
##397BA8	1.00	4.59	4.57	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.57	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#677BAA

Deuteranopia (green-blind)

#5770A7

Tritanopia (blue-blind)

#00868A

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #397ba8;
/* rgb */ color: rgb(57, 123, 168);
/* oklch */ color: oklch(56.0% 0.097 241.3);

Tailwind

colors: {
  custom: {
    50: '#7ba1c2',
    500: '#397ba8',
    950: '#000000',
  },
}

SCSS

$custom: #397ba8;
$custom-light: #7ba1c2;
$custom-dark: #000000;

JSON

{
  "hex": "#397ba8",
  "rgb": {
    "r": 57,
    "g": 123,
    "b": 168
  },
  "hsl": {
    "h": 204.324,
    "s": 49.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.56002,
    "c": 0.0969,
    "h": 241.3
  },
  "luminance": 0.17863
}

Semantic roles & 50–950 ramp

primary

#397BA8

secondary

#C0987D

accent

#874FD9

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #397BA8

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

Preview Lab → · Contrast checker → · Palette generator →