#397DD4#397DD4

#397DD4 is a mid, vivid cyan. Relative luminance 0.203; OKLCH L 59.0% C 0.150 H 255.9°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#397DD4
RGB	rgb(57, 125, 212)
HSL	hsl(214, 64%, 53%)
HSV	hsv(214, 73%, 83%)
CMYK	cmyk(73.1%, 41%, 0%, 16.9%)
CIE-LAB	lab(52.16, 7.99, -50.96)
CIE-LCH	lch(52.16, 51.58, 278.91°)
OKLab	oklab(58.96% -0.0365 -0.1456)
OKLCH	oklch(58.96% 0.15 255.9)
XYZ	xyz(20.9002, 20.2882, 65.0891)
Luminance	0.2029 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397DD4 #D49039

analogous

#39CBD4 #397DD4 #4239D4

triadic

#397DD4 #D4397D #7DD439

tetradic

#397DD4 #D439CB #D49039 #39D442

square

#397DD4 #D439CB #D49039 #39D442

split-complementary

#397DD4 #D44239 #CBD439

monochromatic

#1A4478 #2560AB #397DD4 #6B9EDF #9EBFEA

Accessibility & contrast

On white

4.15

#397DD4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.06

#397DD4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397DD4

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397DD4	#FFFFFF	#000000	##000000
##397DD4	1.00	4.15	5.06	5.06
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.06	21.00	1.00	1.00
##000000	5.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5384D7

Deuteranopia (green-blind)

#3976D2

Tritanopia (blue-blind)

#00919E

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #397dd4;
/* rgb */ color: rgb(57, 125, 212);
/* oklch */ color: oklch(59.0% 0.150 255.9);

Tailwind

colors: {
  custom: {
    50: '#83a2e2',
    500: '#397dd4',
    950: '#000000',
  },
}

SCSS

$custom: #397dd4;
$custom-light: #83a2e2;
$custom-dark: #000000;

JSON

{
  "hex": "#397dd4",
  "rgb": {
    "r": 57,
    "g": 125,
    "b": 212
  },
  "hsl": {
    "h": 213.677,
    "s": 64.315,
    "l": 52.745
  },
  "oklch": {
    "l": 0.58959,
    "c": 0.15009,
    "h": 255.9
  },
  "luminance": 0.20291
}

Semantic roles & 50–950 ramp

primary

#397DD4

secondary

#D6B993

accent

#9E40E7

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0F15

muted

#7D7E83

Preview Lab

Preview with #397DD4

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

Preview Lab → · Contrast checker → · Palette generator →