#397BC9#397BC9

#397BC9 is a mid, vivid cyan. Relative luminance 0.193; OKLCH L 57.8% C 0.138 H 254.4°. Best body text is #000000 at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#397BC9
RGB	rgb(57, 123, 201)
HSL	hsl(213, 57%, 51%)
HSV	hsv(213, 72%, 79%)
CMYK	cmyk(71.6%, 38.8%, 0%, 21.2%)
CIE-LAB	lab(50.98, 5.23, -46.59)
CIE-LCH	lch(50.98, 46.89, 276.40°)
OKLab	oklab(57.84% -0.0372 -0.1328)
OKLCH	oklch(57.84% 0.138 254.4)
XYZ	xyz(19.3090, 19.2507, 57.9451)
Luminance	0.1925 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397BC9 #C98739

analogous

#39C3C9 #397BC9 #3F39C9

triadic

#397BC9 #C9397B #7BC939

tetradic

#397BC9 #C939C3 #C98739 #39C93F

square

#397BC9 #C939C3 #C98739 #39C93F

split-complementary

#397BC9 #C93F39 #C3C939

monochromatic

#1D416B #2A5E9B #397BC9 #699BD6 #99BBE3

Accessibility & contrast

On white

4.33

#397BC9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.85

#397BC9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397BC9

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397BC9	#FFFFFF	#000000	##000000
##397BC9	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)

#5781CC

Deuteranopia (green-blind)

#4173C7

Tritanopia (blue-blind)

#008D98

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #397bc9;
/* rgb */ color: rgb(57, 123, 201);
/* oklch */ color: oklch(57.8% 0.138 254.4);

Tailwind

colors: {
  custom: {
    50: '#81a0da',
    500: '#397bc9',
    950: '#000000',
  },
}

SCSS

$custom: #397bc9;
$custom-light: #81a0da;
$custom-dark: #000000;

JSON

{
  "hex": "#397bc9",
  "rgb": {
    "r": 57,
    "g": 123,
    "b": 201
  },
  "hsl": {
    "h": 212.5,
    "s": 57.143,
    "l": 50.588
  },
  "oklch": {
    "l": 0.57841,
    "c": 0.1379,
    "h": 254.4
  },
  "luminance": 0.19253
}

Semantic roles & 50–950 ramp

primary

#397BC9

secondary

#CFB28F

accent

#9A47E0

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #397BC9

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

Preview Lab → · Contrast checker → · Palette generator →