#397BD1#397BD1

#397BD1 is a mid, vivid cyan. Relative luminance 0.196; OKLCH L 58.3% C 0.148 H 256.2°. Best body text is #000000 at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#397BD1
RGB	rgb(57, 123, 209)
HSL	hsl(214, 62%, 52%)
HSV	hsv(214, 73%, 82%)
CMYK	cmyk(72.7%, 41.1%, 0%, 18%)
CIE-LAB	lab(51.42, 8.13, -50.44)
CIE-LCH	lch(51.42, 51.09, 279.16°)
OKLab	oklab(58.33% -0.0354 -0.1441)
OKLCH	oklch(58.33% 0.148 256.2)
XYZ	xyz(20.2747, 19.6370, 63.0310)
Luminance	0.1964 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397BD1 #D18F39

analogous

#39C7D1 #397BD1 #4339D1

triadic

#397BD1 #D1397B #7BD139

tetradic

#397BD1 #D139C7 #D18F39 #39D143

square

#397BD1 #D139C7 #D18F39 #39D143

split-complementary

#397BD1 #D14339 #C7D139

monochromatic

#1B4275 #275EA6 #397BD1 #6B9CDD #9CBDE8

Accessibility & contrast

On white

4.26

#397BD1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.93

#397BD1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397BD1

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397BD1	#FFFFFF	#000000	##000000
##397BD1	1.00	4.26	4.93	4.93
#FFFFFF	4.26	1.00	21.00	21.00
#000000	4.93	21.00	1.00	1.00
##000000	4.93	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5282D4

Deuteranopia (green-blind)

#3874CF

Tritanopia (blue-blind)

#008F9C

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #397bd1;
/* rgb */ color: rgb(57, 123, 209);
/* oklch */ color: oklch(58.3% 0.148 256.2);

Tailwind

colors: {
  custom: {
    50: '#82a0df',
    500: '#397bd1',
    950: '#000000',
  },
}

SCSS

$custom: #397bd1;
$custom-light: #82a0df;
$custom-dark: #000000;

JSON

{
  "hex": "#397bd1",
  "rgb": {
    "r": 57,
    "g": 123,
    "b": 209
  },
  "hsl": {
    "h": 213.947,
    "s": 62.295,
    "l": 52.157
  },
  "oklch": {
    "l": 0.58331,
    "c": 0.14836,
    "h": 256.2
  },
  "luminance": 0.19639
}

Semantic roles & 50–950 ramp

primary

#397BD1

secondary

#D4B792

accent

#9F42E5

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #397BD1

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

Preview Lab → · Contrast checker → · Palette generator →