#397CB5#397CB5

#397CB5 is a mid, moderate cyan. Relative luminance 0.186; OKLCH L 56.9% C 0.112 H 247.0°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#397CB5
RGB	rgb(57, 124, 181)
HSL	hsl(208, 52%, 47%)
HSV	hsv(208, 69%, 71%)
CMYK	cmyk(68.5%, 31.5%, 0%, 29%)
CIE-LAB	lab(50.24, -2.52, -36.29)
CIE-LCH	lch(50.24, 36.38, 266.02°)
OKLab	oklab(56.92% -0.0435 -0.1027)
OKLCH	oklch(56.92% 0.112 247)
XYZ	xyz(17.2323, 18.6195, 46.3929)
Luminance	0.1862 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397CB5 #B57239

analogous

#39B5B0 #397CB5 #393EB5

triadic

#397CB5 #B5397C #7CB539

tetradic

#397CB5 #B039B5 #B57239 #3EB539

square

#397CB5 #B039B5 #B57239 #3EB539

split-complementary

#397CB5 #B5393E #B5B039

monochromatic

#1C3C58 #2A5C86 #397CB5 #5F9ACD #8DB7DB

Accessibility & contrast

On white

4.45

#397CB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#397CB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397CB5

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397CB5	#FFFFFF	#000000	##000000
##397CB5	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)

#637EB7

Deuteranopia (green-blind)

#5172B4

Tritanopia (blue-blind)

#008A90

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #397cb5;
/* rgb */ color: rgb(57, 124, 181);
/* oklch */ color: oklch(56.9% 0.112 247.0);

Tailwind

colors: {
  custom: {
    50: '#7da1cb',
    500: '#397cb5',
    950: '#000000',
  },
}

SCSS

$custom: #397cb5;
$custom-light: #7da1cb;
$custom-dark: #000000;

JSON

{
  "hex": "#397cb5",
  "rgb": {
    "r": 57,
    "g": 124,
    "b": 181
  },
  "hsl": {
    "h": 207.581,
    "s": 52.101,
    "l": 46.667
  },
  "oklch": {
    "l": 0.56923,
    "c": 0.11151,
    "h": 247
  },
  "luminance": 0.18621
}

Semantic roles & 50–950 ramp

primary

#397CB5

secondary

#C6A284

accent

#8E4CDC

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #397CB5

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

Preview Lab → · Contrast checker → · Palette generator →