#397BC0#397BC0

#397BC0 is a mid, vivid cyan. Relative luminance 0.188; OKLCH L 57.3% C 0.126 H 251.8°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#397BC0
RGB	rgb(57, 123, 192)
HSL	hsl(211, 54%, 49%)
HSV	hsv(211, 70%, 75%)
CMYK	cmyk(70.3%, 35.9%, 0%, 24.7%)
CIE-LAB	lab(50.50, 1.99, -42.21)
CIE-LCH	lch(50.50, 42.26, 272.69°)
OKLab	oklab(57.31% -0.0394 -0.12)
OKLCH	oklch(57.31% 0.126 251.8)
XYZ	xyz(18.2812, 18.8396, 52.5319)
Luminance	0.1884 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397BC0 #C07E39

analogous

#39BFC0 #397BC0 #3B39C0

triadic

#397BC0 #C0397B #7BC039

tetradic

#397BC0 #C039BF #C07E39 #39C03B

square

#397BC0 #C039BF #C07E39 #39C03B

split-complementary

#397BC0 #C03B39 #BFC039

monochromatic

#1D3F62 #2B5D91 #397BC0 #659AD1 #94B9DF

Accessibility & contrast

On white

4.40

#397BC0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#397BC0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397BC0

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397BC0	#FFFFFF	#000000	##000000
##397BC0	1.00	4.40	4.77	4.77
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C7FC3

Deuteranopia (green-blind)

#4872BF

Tritanopia (blue-blind)

#008B94

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #397bc0;
/* rgb */ color: rgb(57, 123, 192);
/* oklch */ color: oklch(57.3% 0.126 251.8);

Tailwind

colors: {
  custom: {
    50: '#7fa0d3',
    500: '#397bc0',
    950: '#000000',
  },
}

SCSS

$custom: #397bc0;
$custom-light: #7fa0d3;
$custom-dark: #000000;

JSON

{
  "hex": "#397bc0",
  "rgb": {
    "r": 57,
    "g": 123,
    "b": 192
  },
  "hsl": {
    "h": 210.667,
    "s": 54.217,
    "l": 48.824
  },
  "oklch": {
    "l": 0.57309,
    "c": 0.12626,
    "h": 251.8
  },
  "luminance": 0.18842
}

Semantic roles & 50–950 ramp

primary

#397BC0

secondary

#CBAB8A

accent

#964ADE

background

#F8F9FD

surface

#EFF2FA

border

#CACCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #397BC0

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

Preview Lab → · Contrast checker → · Palette generator →