#397CB7#397CB7

#397CB7 is a mid, moderate cyan. Relative luminance 0.187; OKLCH L 57.0% C 0.114 H 247.9°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#397CB7
RGB	rgb(57, 124, 183)
HSL	hsl(208, 53%, 47%)
HSV	hsv(208, 69%, 72%)
CMYK	cmyk(68.9%, 32.2%, 0%, 28.2%)
CIE-LAB	lab(50.34, -1.82, -37.29)
CIE-LCH	lch(50.34, 37.33, 267.21°)
OKLab	oklab(57.03% -0.0429 -0.1056)
OKLCH	oklch(57.03% 0.114 247.9)
XYZ	xyz(17.4390, 18.7022, 47.4814)
Luminance	0.1870 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397CB7 #B77439

analogous

#39B7B3 #397CB7 #393DB7

triadic

#397CB7 #B7397C #7CB739

tetradic

#397CB7 #B339B7 #B77439 #3DB739

square

#397CB7 #B339B7 #B77439 #3DB739

split-complementary

#397CB7 #B7393D #B7B339

monochromatic

#1C3D5A #2A5C88 #397CB7 #609ACD #8EB8DC

Accessibility & contrast

On white

4.43

#397CB7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#397CB7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397CB7

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397CB7	#FFFFFF	#000000	##000000
##397CB7	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#627EBA

Deuteranopia (green-blind)

#5072B6

Tritanopia (blue-blind)

#008A91

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #397cb7;
/* rgb */ color: rgb(57, 124, 183);
/* oklch */ color: oklch(57.0% 0.114 247.9);

Tailwind

colors: {
  custom: {
    50: '#7ea1cd',
    500: '#397cb7',
    950: '#000000',
  },
}

SCSS

$custom: #397cb7;
$custom-light: #7ea1cd;
$custom-dark: #000000;

JSON

{
  "hex": "#397cb7",
  "rgb": {
    "r": 57,
    "g": 124,
    "b": 183
  },
  "hsl": {
    "h": 208.095,
    "s": 52.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.57032,
    "c": 0.11397,
    "h": 247.9
  },
  "luminance": 0.18704
}

Semantic roles & 50–950 ramp

primary

#397CB7

secondary

#C7A485

accent

#8F4CDC

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #397CB7

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

Preview Lab → · Contrast checker → · Palette generator →