#397BAC#397BAC

#397BAC is a mid, moderate cyan. Relative luminance 0.180; OKLCH L 56.2% C 0.102 H 243.5°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#397BAC
RGB	rgb(57, 123, 172)
HSL	hsl(206, 50%, 45%)
HSV	hsv(206, 67%, 67%)
CMYK	cmyk(66.9%, 28.5%, 0%, 32.5%)
CIE-LAB	lab(49.51, -5.08, -32.22)
CIE-LCH	lch(49.51, 32.62, 261.05°)
OKLab	oklab(56.21% -0.0452 -0.0909)
OKLCH	oklch(56.21% 0.102 243.5)
XYZ	xyz(16.2139, 18.0127, 41.6440)
Luminance	0.1801 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397BAC #AC6A39

analogous

#39ACA3 #397BAC #3942AC

triadic

#397BAC #AC397B #7BAC39

tetradic

#397BAC #A339AC #AC6A39 #42AC39

square

#397BAC #A339AC #AC6A39 #42AC39

split-complementary

#397BAC #AC3942 #ACA339

monochromatic

#1B3950 #2A5A7E #397BAC #5A99C8 #88B6D8

Accessibility & contrast

On white

4.56

#397BAC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#397BAC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397BAC

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397BAC	#FFFFFF	#000000	##000000
##397BAC	1.00	4.56	4.60	4.60
#FFFFFF	4.56	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)

#657CAE

Deuteranopia (green-blind)

#5571AB

Tritanopia (blue-blind)

#00878C

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #397bac;
/* rgb */ color: rgb(57, 123, 172);
/* oklch */ color: oklch(56.2% 0.102 243.5);

Tailwind

colors: {
  custom: {
    50: '#7ca1c5',
    500: '#397bac',
    950: '#000000',
  },
}

SCSS

$custom: #397bac;
$custom-light: #7ca1c5;
$custom-dark: #000000;

JSON

{
  "hex": "#397bac",
  "rgb": {
    "r": 57,
    "g": 123,
    "b": 172
  },
  "hsl": {
    "h": 205.565,
    "s": 50.218,
    "l": 44.902
  },
  "oklch": {
    "l": 0.56208,
    "c": 0.10151,
    "h": 243.5
  },
  "luminance": 0.18014
}

Semantic roles & 50–950 ramp

primary

#397BAC

secondary

#C29B7F

accent

#8A4EDA

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0E13

muted

#7C7E82

Preview Lab

Preview with #397BAC

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

Preview Lab → · Contrast checker → · Palette generator →