#397CAA#397CAA

#397CAA is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.3% C 0.098 H 241.5°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#397CAA
RGB	rgb(57, 124, 170)
HSL	hsl(204, 50%, 45%)
HSV	hsv(204, 66%, 67%)
CMYK	cmyk(66.5%, 27.1%, 0%, 33.3%)
CIE-LAB	lab(49.72, -6.35, -30.74)
CIE-LCH	lch(49.72, 31.39, 258.32°)
OKLab	oklab(56.34% -0.047 -0.0866)
OKLCH	oklch(56.34% 0.098 241.5)
XYZ	xyz(16.1479, 18.1858, 40.6816)
Luminance	0.1819 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397CAA #AA6739

analogous

#39AAA0 #397CAA #3943AA

triadic

#397CAA #AA397C #7CAA39

tetradic

#397CAA #A039AA #AA6739 #43AA39

square

#397CAA #A039AA #AA6739 #43AA39

split-complementary

#397CAA #AA3943 #AAA039

monochromatic

#1A394E #2A5B7C #397CAA #599AC7 #87B6D7

Accessibility & contrast

On white

4.53

#397CAA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#397CAA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397CAA

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397CAA	#FFFFFF	#000000	##000000
##397CAA	1.00	4.53	4.64	4.64
#FFFFFF	4.53	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#677CAC

Deuteranopia (green-blind)

#5871A9

Tritanopia (blue-blind)

#00878C

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #397caa;
/* rgb */ color: rgb(57, 124, 170);
/* oklch */ color: oklch(56.3% 0.098 241.5);

Tailwind

colors: {
  custom: {
    50: '#7ca1c3',
    500: '#397caa',
    950: '#000000',
  },
}

SCSS

$custom: #397caa;
$custom-light: #7ca1c3;
$custom-dark: #000000;

JSON

{
  "hex": "#397caa",
  "rgb": {
    "r": 57,
    "g": 124,
    "b": 170
  },
  "hsl": {
    "h": 204.425,
    "s": 49.78,
    "l": 44.51
  },
  "oklch": {
    "l": 0.56344,
    "c": 0.09848,
    "h": 241.5
  },
  "luminance": 0.18187
}

Semantic roles & 50–950 ramp

primary

#397CAA

secondary

#C1997E

accent

#874ED9

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #397CAA

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

Preview Lab → · Contrast checker → · Palette generator →