#397DD1#397DD1

#397DD1 is a mid, vivid cyan. Relative luminance 0.201; OKLCH L 58.8% C 0.146 H 255.3°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#397DD1
RGB	rgb(57, 125, 209)
HSL	hsl(213, 62%, 52%)
HSV	hsv(213, 73%, 82%)
CMYK	cmyk(72.7%, 40.2%, 0%, 18%)
CIE-LAB	lab(51.99, 6.90, -49.53)
CIE-LCH	lch(51.99, 50.01, 277.93°)
OKLab	oklab(58.77% -0.0372 -0.1414)
OKLCH	oklch(58.77% 0.146 255.3)
XYZ	xyz(20.5253, 20.1383, 63.1146)
Luminance	0.2014 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397DD1 #D18D39

analogous

#39C9D1 #397DD1 #4139D1

triadic

#397DD1 #D1397D #7DD139

tetradic

#397DD1 #D139C9 #D18D39 #39D141

square

#397DD1 #D139C9 #D18D39 #39D141

split-complementary

#397DD1 #D14139 #C9D139

monochromatic

#1B4375 #2760A6 #397DD1 #6B9EDD #9CBEE8

Accessibility & contrast

On white

4.18

#397DD1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#397DD1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397DD1

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397DD1	#FFFFFF	#000000	##000000
##397DD1	1.00	4.18	5.03	5.03
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5584D4

Deuteranopia (green-blind)

#3D76CF

Tritanopia (blue-blind)

#00919D

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #397dd1;
/* rgb */ color: rgb(57, 125, 209);
/* oklch */ color: oklch(58.8% 0.146 255.3);

Tailwind

colors: {
  custom: {
    50: '#82a2df',
    500: '#397dd1',
    950: '#000000',
  },
}

SCSS

$custom: #397dd1;
$custom-light: #82a2df;
$custom-dark: #000000;

JSON

{
  "hex": "#397dd1",
  "rgb": {
    "r": 57,
    "g": 125,
    "b": 209
  },
  "hsl": {
    "h": 213.158,
    "s": 62.295,
    "l": 52.157
  },
  "oklch": {
    "l": 0.58774,
    "c": 0.14618,
    "h": 255.3
  },
  "luminance": 0.20141
}

Semantic roles & 50–950 ramp

primary

#397DD1

secondary

#D4B692

accent

#9C42E5

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0F15

muted

#7D7E83

Preview Lab

Preview with #397DD1

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

Preview Lab → · Contrast checker → · Palette generator →