#397AB5#397AB5

#397AB5 is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.5% C 0.113 H 248.5°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#397AB5
RGB	rgb(57, 122, 181)
HSL	hsl(209, 52%, 47%)
HSV	hsv(209, 69%, 71%)
CMYK	cmyk(68.5%, 32.6%, 0%, 29%)
CIE-LAB	lab(49.65, -1.33, -37.23)
CIE-LCH	lch(49.65, 37.25, 267.96°)
OKLab	oklab(56.46% -0.0414 -0.1054)
OKLCH	oklch(56.46% 0.113 248.5)
XYZ	xyz(16.9842, 18.1233, 46.3102)
Luminance	0.1812 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397AB5 #B57439

analogous

#39B5B2 #397AB5 #393CB5

triadic

#397AB5 #B5397A #7AB539

tetradic

#397AB5 #B239B5 #B57439 #3CB539

square

#397AB5 #B239B5 #B57439 #3CB539

split-complementary

#397AB5 #B5393C #B5B239

monochromatic

#1C3B58 #2A5B86 #397AB5 #5F98CD #8DB6DB

Accessibility & contrast

On white

4.54

#397AB5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#397AB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397AB5

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397AB5	#FFFFFF	#000000	##000000
##397AB5	1.00	4.54	4.63	4.63
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.63	21.00	1.00	1.00
##000000	4.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#607DB8

Deuteranopia (green-blind)

#4F71B4

Tritanopia (blue-blind)

#00888F

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #397ab5;
/* rgb */ color: rgb(57, 122, 181);
/* oklch */ color: oklch(56.5% 0.113 248.5);

Tailwind

colors: {
  custom: {
    50: '#7da0cb',
    500: '#397ab5',
    950: '#000000',
  },
}

SCSS

$custom: #397ab5;
$custom-light: #7da0cb;
$custom-dark: #000000;

JSON

{
  "hex": "#397ab5",
  "rgb": {
    "r": 57,
    "g": 122,
    "b": 181
  },
  "hsl": {
    "h": 208.548,
    "s": 52.101,
    "l": 46.667
  },
  "oklch": {
    "l": 0.56456,
    "c": 0.11328,
    "h": 248.5
  },
  "luminance": 0.18125
}

Semantic roles & 50–950 ramp

primary

#397AB5

secondary

#C6A384

accent

#904CDC

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #397AB5

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

Preview Lab → · Contrast checker → · Palette generator →