#397BBE#397BBE

#397BBE is a mid, vivid cyan. Relative luminance 0.188; OKLCH L 57.2% C 0.124 H 251.2°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#397BBE
RGB	rgb(57, 123, 190)
HSL	hsl(210, 54%, 48%)
HSV	hsv(210, 70%, 75%)
CMYK	cmyk(70%, 35.3%, 0%, 25.5%)
CIE-LAB	lab(50.40, 1.27, -41.23)
CIE-LCH	lch(50.40, 41.24, 271.76°)
OKLab	oklab(57.19% -0.0399 -0.1171)
OKLCH	oklch(57.19% 0.124 251.2)
XYZ	xyz(18.0611, 18.7515, 51.3728)
Luminance	0.1875 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397BBE #BE7C39

analogous

#39BDBE #397BBE #3A39BE

triadic

#397BBE #BE397B #7BBE39

tetradic

#397BBE #BE39BD #BE7C39 #39BE3A

square

#397BBE #BE39BD #BE7C39 #39BE3A

split-complementary

#397BBE #BE3A39 #BDBE39

monochromatic

#1D3E60 #2B5D8F #397BBE #649AD0 #93B8DF

Accessibility & contrast

On white

4.42

#397BBE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#397BBE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397BBE

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397BBE	#FFFFFF	#000000	##000000
##397BBE	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D7FC1

Deuteranopia (green-blind)

#4A72BD

Tritanopia (blue-blind)

#008B93

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #397bbe;
/* rgb */ color: rgb(57, 123, 190);
/* oklch */ color: oklch(57.2% 0.124 251.2);

Tailwind

colors: {
  custom: {
    50: '#7fa0d2',
    500: '#397bbe',
    950: '#000000',
  },
}

SCSS

$custom: #397bbe;
$custom-light: #7fa0d2;
$custom-dark: #000000;

JSON

{
  "hex": "#397bbe",
  "rgb": {
    "r": 57,
    "g": 123,
    "b": 190
  },
  "hsl": {
    "h": 210.226,
    "s": 53.846,
    "l": 48.431
  },
  "oklch": {
    "l": 0.57194,
    "c": 0.1237,
    "h": 251.2
  },
  "luminance": 0.18753
}

Semantic roles & 50–950 ramp

primary

#397BBE

secondary

#CAAA89

accent

#944BDD

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #397BBE

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

Preview Lab → · Contrast checker → · Palette generator →