#397BAB#397BAB

#397BAB is a mid, moderate cyan. Relative luminance 0.180; OKLCH L 56.2% C 0.100 H 243.0°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#397BAB
RGB	rgb(57, 123, 171)
HSL	hsl(205, 50%, 45%)
HSV	hsv(205, 67%, 67%)
CMYK	cmyk(66.7%, 28.1%, 0%, 32.9%)
CIE-LAB	lab(49.47, -5.42, -31.72)
CIE-LCH	lch(49.47, 32.18, 260.30°)
OKLab	oklab(56.16% -0.0456 -0.0894)
OKLCH	oklch(56.16% 0.1 243)
XYZ	xyz(16.1182, 17.9744, 41.1401)
Luminance	0.1798 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397BAB #AB6939

analogous

#39ABA2 #397BAB #3942AB

triadic

#397BAB #AB397B #7BAB39

tetradic

#397BAB #A239AB #AB6939 #42AB39

square

#397BAB #A239AB #AB6939 #42AB39

split-complementary

#397BAB #AB3942 #ABA239

monochromatic

#1A394F #2A5A7D #397BAB #5999C8 #87B6D7

Accessibility & contrast

On white

4.57

#397BAB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#397BAB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397BAB

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397BAB	#FFFFFF	#000000	##000000
##397BAB	1.00	4.57	4.60	4.60
#FFFFFF	4.57	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#657CAD

Deuteranopia (green-blind)

#5671AA

Tritanopia (blue-blind)

#00878C

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #397bab;
/* rgb */ color: rgb(57, 123, 171);
/* oklch */ color: oklch(56.2% 0.100 243.0);

Tailwind

colors: {
  custom: {
    50: '#7ca1c4',
    500: '#397bab',
    950: '#000000',
  },
}

SCSS

$custom: #397bab;
$custom-light: #7ca1c4;
$custom-dark: #000000;

JSON

{
  "hex": "#397bab",
  "rgb": {
    "r": 57,
    "g": 123,
    "b": 171
  },
  "hsl": {
    "h": 205.263,
    "s": 50,
    "l": 44.706
  },
  "oklch": {
    "l": 0.56156,
    "c": 0.10035,
    "h": 243
  },
  "luminance": 0.17976
}

Semantic roles & 50–950 ramp

primary

#397BAB

secondary

#C19B7F

accent

#894EDA

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #397BAB

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

Preview Lab → · Contrast checker → · Palette generator →