#397CC4#397CC4

#397CC4 is a mid, vivid cyan. Relative luminance 0.193; OKLCH L 57.8% C 0.130 H 252.4°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#397CC4
RGB	rgb(57, 124, 196)
HSL	hsl(211, 55%, 50%)
HSV	hsv(211, 71%, 77%)
CMYK	cmyk(70.9%, 36.7%, 0%, 23.1%)
CIE-LAB	lab(51.00, 2.82, -43.71)
CIE-LCH	lch(51.00, 43.80, 273.69°)
OKLab	oklab(57.77% -0.0393 -0.1243)
OKLCH	oklch(57.77% 0.13 252.4)
XYZ	xyz(18.8551, 19.2686, 54.9394)
Luminance	0.1927 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397CC4 #C48139

analogous

#39C2C4 #397CC4 #3B39C4

triadic

#397CC4 #C4397C #7CC439

tetradic

#397CC4 #C439C2 #C48139 #39C43B

square

#397CC4 #C439C2 #C48139 #39C43B

split-complementary

#397CC4 #C43B39 #C2C439

monochromatic

#1D4065 #2B5E95 #397CC4 #679BD3 #97BAE1

Accessibility & contrast

On white

4.33

#397CC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#397CC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397CC4

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397CC4	#FFFFFF	#000000	##000000
##397CC4	1.00	4.33	4.85	4.85
#FFFFFF	4.33	1.00	21.00	21.00
#000000	4.85	21.00	1.00	1.00
##000000	4.85	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B81C7

Deuteranopia (green-blind)

#4774C3

Tritanopia (blue-blind)

#008D97

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #397cc4;
/* rgb */ color: rgb(57, 124, 196);
/* oklch */ color: oklch(57.8% 0.130 252.4);

Tailwind

colors: {
  custom: {
    50: '#80a1d6',
    500: '#397cc4',
    950: '#000000',
  },
}

SCSS

$custom: #397cc4;
$custom-light: #80a1d6;
$custom-dark: #000000;

JSON

{
  "hex": "#397cc4",
  "rgb": {
    "r": 57,
    "g": 124,
    "b": 196
  },
  "hsl": {
    "h": 211.079,
    "s": 54.941,
    "l": 49.608
  },
  "oklch": {
    "l": 0.57769,
    "c": 0.1304,
    "h": 252.4
  },
  "luminance": 0.19271
}

Semantic roles & 50–950 ramp

primary

#397CC4

secondary

#CCAE8D

accent

#974ADE

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0B0E14

muted

#7C7E83

Preview Lab

Preview with #397CC4

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

Preview Lab → · Contrast checker → · Palette generator →