#397AB4#397AB4

#397AB4 is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.4% C 0.112 H 248.1°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#397AB4
RGB	rgb(57, 122, 180)
HSL	hsl(208, 52%, 46%)
HSV	hsv(208, 68%, 71%)
CMYK	cmyk(68.3%, 32.2%, 0%, 29.4%)
CIE-LAB	lab(49.60, -1.68, -36.73)
CIE-LCH	lch(49.60, 36.76, 267.38°)
OKLab	oklab(56.4% -0.0417 -0.104)
OKLCH	oklch(56.4% 0.112 248.1)
XYZ	xyz(16.8820, 18.0824, 45.7717)
Luminance	0.1808 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397AB4 #B47339

analogous

#39B4B1 #397AB4 #393CB4

triadic

#397AB4 #B4397A #7AB439

tetradic

#397AB4 #B139B4 #B47339 #3CB439

square

#397AB4 #B139B4 #B47339 #3CB439

split-complementary

#397AB4 #B4393C #B4B139

monochromatic

#1C3B57 #2A5A86 #397AB4 #5E98CC #8DB6DB

Accessibility & contrast

On white

4.55

#397AB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#397AB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397AB4

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397AB4	#FFFFFF	#000000	##000000
##397AB4	1.00	4.55	4.62	4.62
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#607CB6

Deuteranopia (green-blind)

#4F71B3

Tritanopia (blue-blind)

#00888F

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #397ab4;
/* rgb */ color: rgb(57, 122, 180);
/* oklch */ color: oklch(56.4% 0.112 248.1);

Tailwind

colors: {
  custom: {
    50: '#7da0ca',
    500: '#397ab4',
    950: '#000000',
  },
}

SCSS

$custom: #397ab4;
$custom-light: #7da0ca;
$custom-dark: #000000;

JSON

{
  "hex": "#397ab4",
  "rgb": {
    "r": 57,
    "g": 122,
    "b": 180
  },
  "hsl": {
    "h": 208.293,
    "s": 51.899,
    "l": 46.471
  },
  "oklch": {
    "l": 0.56401,
    "c": 0.11204,
    "h": 248.1
  },
  "luminance": 0.18084
}

Semantic roles & 50–950 ramp

primary

#397AB4

secondary

#C5A383

accent

#904CDB

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #397AB4

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

Preview Lab → · Contrast checker → · Palette generator →