#397DC9#397DC9

#397DC9 is a mid, vivid cyan. Relative luminance 0.198; OKLCH L 58.3% C 0.136 H 253.3°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#397DC9
RGB	rgb(57, 125, 201)
HSL	hsl(212, 57%, 51%)
HSV	hsv(212, 72%, 79%)
CMYK	cmyk(71.6%, 37.8%, 0%, 21.2%)
CIE-LAB	lab(51.56, 4.01, -45.68)
CIE-LCH	lch(51.56, 45.85, 275.02°)
OKLab	oklab(58.29% -0.039 -0.1301)
OKLCH	oklch(58.29% 0.136 253.3)
XYZ	xyz(19.5597, 19.7520, 58.0287)
Luminance	0.1975 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397DC9 #C98539

analogous

#39C5C9 #397DC9 #3D39C9

triadic

#397DC9 #C9397D #7DC939

tetradic

#397DC9 #C939C5 #C98539 #39C93D

square

#397DC9 #C939C5 #C98539 #39C93D

split-complementary

#397DC9 #C93D39 #C5C939

monochromatic

#1D426B #2A5F9B #397DC9 #699DD6 #99BCE3

Accessibility & contrast

On white

4.24

#397DC9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#397DC9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397DC9

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397DC9	#FFFFFF	#000000	##000000
##397DC9	1.00	4.24	4.95	4.95
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A82CC

Deuteranopia (green-blind)

#4475C7

Tritanopia (blue-blind)

#008F99

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #397dc9;
/* rgb */ color: rgb(57, 125, 201);
/* oklch */ color: oklch(58.3% 0.136 253.3);

Tailwind

colors: {
  custom: {
    50: '#81a2da',
    500: '#397dc9',
    950: '#000000',
  },
}

SCSS

$custom: #397dc9;
$custom-light: #81a2da;
$custom-dark: #000000;

JSON

{
  "hex": "#397dc9",
  "rgb": {
    "r": 57,
    "g": 125,
    "b": 201
  },
  "hsl": {
    "h": 211.667,
    "s": 57.143,
    "l": 50.588
  },
  "oklch": {
    "l": 0.5829,
    "c": 0.13582,
    "h": 253.3
  },
  "luminance": 0.19754
}

Semantic roles & 50–950 ramp

primary

#397DC9

secondary

#CFB18F

accent

#9847E0

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0F15

muted

#7D7E83

Preview Lab

Preview with #397DC9

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

Preview Lab → · Contrast checker → · Palette generator →