#397CD3#397CD3

#397CD3 is a mid, vivid cyan. Relative luminance 0.200; OKLCH L 58.7% C 0.150 H 256.2°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#397CD3
RGB	rgb(57, 124, 211)
HSL	hsl(214, 64%, 53%)
HSV	hsv(214, 73%, 83%)
CMYK	cmyk(73%, 41.2%, 0%, 17.3%)
CIE-LAB	lab(51.82, 8.24, -50.94)
CIE-LCH	lch(51.82, 51.60, 279.19°)
OKLab	oklab(58.68% -0.0358 -0.1455)
OKLCH	oklch(58.68% 0.15 256.2)
XYZ	xyz(20.6485, 19.9860, 64.3848)
Luminance	0.1999 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397CD3 #D39039

analogous

#39C9D3 #397CD3 #4339D3

triadic

#397CD3 #D3397C #7CD339

tetradic

#397CD3 #D339C9 #D39039 #39D343

square

#397CD3 #D339C9 #D39039 #39D343

split-complementary

#397CD3 #D34339 #C9D339

monochromatic

#1A4377 #265FA9 #397CD3 #6B9DDE #9DBEE9

Accessibility & contrast

On white

4.20

#397CD3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#397CD3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397CD3

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397CD3	#FFFFFF	#000000	##000000
##397CD3	1.00	4.20	5.00	5.00
#FFFFFF	4.20	1.00	21.00	21.00
#000000	5.00	21.00	1.00	1.00
##000000	5.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5283D6

Deuteranopia (green-blind)

#3875D1

Tritanopia (blue-blind)

#00909D

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #397cd3;
/* rgb */ color: rgb(57, 124, 211);
/* oklch */ color: oklch(58.7% 0.150 256.2);

Tailwind

colors: {
  custom: {
    50: '#83a1e1',
    500: '#397cd3',
    950: '#000000',
  },
}

SCSS

$custom: #397cd3;
$custom-light: #83a1e1;
$custom-dark: #000000;

JSON

{
  "hex": "#397cd3",
  "rgb": {
    "r": 57,
    "g": 124,
    "b": 211
  },
  "hsl": {
    "h": 213.896,
    "s": 63.636,
    "l": 52.549
  },
  "oklch": {
    "l": 0.58677,
    "c": 0.14988,
    "h": 256.2
  },
  "luminance": 0.19988
}

Semantic roles & 50–950 ramp

primary

#397CD3

secondary

#D5B892

accent

#9F41E7

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #397CD3

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

Preview Lab → · Contrast checker → · Palette generator →