#397CB4#397CB4

#397CB4 is a mid, moderate cyan. Relative luminance 0.186; OKLCH L 56.9% C 0.110 H 246.6°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#397CB4
RGB	rgb(57, 124, 180)
HSL	hsl(207, 52%, 46%)
HSV	hsv(207, 68%, 71%)
CMYK	cmyk(68.3%, 31.1%, 0%, 29.4%)
CIE-LAB	lab(50.19, -2.87, -35.79)
CIE-LCH	lch(50.19, 35.91, 265.41°)
OKLab	oklab(56.87% -0.0438 -0.1012)
OKLCH	oklch(56.87% 0.11 246.6)
XYZ	xyz(17.1301, 18.5786, 45.8544)
Luminance	0.1858 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397CB4 #B47139

analogous

#39B4AF #397CB4 #393FB4

triadic

#397CB4 #B4397C #7CB439

tetradic

#397CB4 #AF39B4 #B47139 #3FB439

square

#397CB4 #AF39B4 #B47139 #3FB439

split-complementary

#397CB4 #B4393F #B4AF39

monochromatic

#1C3C57 #2A5C86 #397CB4 #5E9ACC #8DB7DB

Accessibility & contrast

On white

4.45

#397CB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#397CB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397CB4

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397CB4	#FFFFFF	#000000	##000000
##397CB4	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#637EB6

Deuteranopia (green-blind)

#5272B3

Tritanopia (blue-blind)

#008990

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #397cb4;
/* rgb */ color: rgb(57, 124, 180);
/* oklch */ color: oklch(56.9% 0.110 246.6);

Tailwind

colors: {
  custom: {
    50: '#7da1ca',
    500: '#397cb4',
    950: '#000000',
  },
}

SCSS

$custom: #397cb4;
$custom-light: #7da1ca;
$custom-dark: #000000;

JSON

{
  "hex": "#397cb4",
  "rgb": {
    "r": 57,
    "g": 124,
    "b": 180
  },
  "hsl": {
    "h": 207.317,
    "s": 51.899,
    "l": 46.471
  },
  "oklch": {
    "l": 0.56869,
    "c": 0.11029,
    "h": 246.6
  },
  "luminance": 0.1858
}

Semantic roles & 50–950 ramp

primary

#397CB4

secondary

#C5A183

accent

#8E4CDB

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0F13

muted

#7C7E82

Preview Lab

Preview with #397CB4

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

Preview Lab → · Contrast checker → · Palette generator →