#397CD1#397CD1

#397CD1 is a mid, vivid cyan. Relative luminance 0.199; OKLCH L 58.6% C 0.147 H 255.7°. Best body text is #000000 at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#397CD1
RGB	rgb(57, 124, 209)
HSL	hsl(214, 62%, 52%)
HSV	hsv(214, 73%, 82%)
CMYK	cmyk(72.7%, 40.7%, 0%, 18%)
CIE-LAB	lab(51.71, 7.51, -49.98)
CIE-LCH	lch(51.71, 50.54, 278.55°)
OKLab	oklab(58.55% -0.0363 -0.1427)
OKLCH	oklch(58.55% 0.147 255.7)
XYZ	xyz(20.3994, 19.8864, 63.0726)
Luminance	0.1989 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397CD1 #D18E39

analogous

#39C8D1 #397CD1 #4239D1

triadic

#397CD1 #D1397C #7CD139

tetradic

#397CD1 #D139C8 #D18E39 #39D142

square

#397CD1 #D139C8 #D18E39 #39D142

split-complementary

#397CD1 #D14239 #C8D139

monochromatic

#1B4375 #275FA6 #397CD1 #6B9DDD #9CBEE8

Accessibility & contrast

On white

4.22

#397CD1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.98

#397CD1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397CD1

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397CD1	#FFFFFF	#000000	##000000
##397CD1	1.00	4.22	4.98	4.98
#FFFFFF	4.22	1.00	21.00	21.00
#000000	4.98	21.00	1.00	1.00
##000000	4.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5483D4

Deuteranopia (green-blind)

#3B75CF

Tritanopia (blue-blind)

#00909C

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #397cd1;
/* rgb */ color: rgb(57, 124, 209);
/* oklch */ color: oklch(58.6% 0.147 255.7);

Tailwind

colors: {
  custom: {
    50: '#82a1df',
    500: '#397cd1',
    950: '#000000',
  },
}

SCSS

$custom: #397cd1;
$custom-light: #82a1df;
$custom-dark: #000000;

JSON

{
  "hex": "#397cd1",
  "rgb": {
    "r": 57,
    "g": 124,
    "b": 209
  },
  "hsl": {
    "h": 213.553,
    "s": 62.295,
    "l": 52.157
  },
  "oklch": {
    "l": 0.58552,
    "c": 0.14726,
    "h": 255.7
  },
  "luminance": 0.19889
}

Semantic roles & 50–950 ramp

primary

#397CD1

secondary

#D4B792

accent

#9E42E5

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #397CD1

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

Preview Lab → · Contrast checker → · Palette generator →