#397DC4#397DC4

#397DC4 is a mid, vivid cyan. Relative luminance 0.195; OKLCH L 58.0% C 0.129 H 251.9°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#397DC4
RGB	rgb(57, 125, 196)
HSL	hsl(211, 55%, 50%)
HSV	hsv(211, 71%, 77%)
CMYK	cmyk(70.9%, 36.2%, 0%, 23.1%)
CIE-LAB	lab(51.29, 2.21, -43.24)
CIE-LCH	lch(51.29, 43.30, 272.93°)
OKLab	oklab(58% -0.0403 -0.123)
OKLCH	oklch(58% 0.129 251.9)
XYZ	xyz(18.9811, 19.5205, 54.9813)
Luminance	0.1952 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397DC4 #C48039

analogous

#39C3C4 #397DC4 #3A39C4

triadic

#397DC4 #C4397D #7DC439

tetradic

#397DC4 #C439C3 #C48039 #39C43A

square

#397DC4 #C439C3 #C48039 #39C43A

split-complementary

#397DC4 #C43A39 #C3C439

monochromatic

#1D4165 #2B5F95 #397DC4 #679CD3 #97BBE1

Accessibility & contrast

On white

4.28

#397DC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#397DC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397DC4

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397DC4	#FFFFFF	#000000	##000000
##397DC4	1.00	4.28	4.90	4.90
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D81C7

Deuteranopia (green-blind)

#4874C3

Tritanopia (blue-blind)

#008E97

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #397dc4;
/* rgb */ color: rgb(57, 125, 196);
/* oklch */ color: oklch(58.0% 0.129 251.9);

Tailwind

colors: {
  custom: {
    50: '#80a2d6',
    500: '#397dc4',
    950: '#000000',
  },
}

SCSS

$custom: #397dc4;
$custom-light: #80a2d6;
$custom-dark: #000000;

JSON

{
  "hex": "#397dc4",
  "rgb": {
    "r": 57,
    "g": 125,
    "b": 196
  },
  "hsl": {
    "h": 210.647,
    "s": 54.941,
    "l": 49.608
  },
  "oklch": {
    "l": 0.57997,
    "c": 0.12939,
    "h": 251.9
  },
  "luminance": 0.19523
}

Semantic roles & 50–950 ramp

primary

#397DC4

secondary

#CCAD8D

accent

#964ADE

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0F14

muted

#7C7E83

Preview Lab

Preview with #397DC4

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

Preview Lab → · Contrast checker → · Palette generator →