#397EC9#397EC9

#397EC9 is a mid, vivid cyan. Relative luminance 0.200; OKLCH L 58.5% C 0.135 H 252.8°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#397EC9
RGB	rgb(57, 126, 201)
HSL	hsl(211, 57%, 51%)
HSV	hsv(211, 72%, 79%)
CMYK	cmyk(71.6%, 37.3%, 0%, 21.2%)
CIE-LAB	lab(51.84, 3.40, -45.22)
CIE-LCH	lch(51.84, 45.35, 274.30°)
OKLab	oklab(58.52% -0.04 -0.1287)
OKLCH	oklch(58.52% 0.135 252.8)
XYZ	xyz(19.6869, 20.0065, 58.0711)
Luminance	0.2001 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397EC9 #C98439

analogous

#39C6C9 #397EC9 #3C39C9

triadic

#397EC9 #C9397E #7EC939

tetradic

#397EC9 #C939C6 #C98439 #39C93C

square

#397EC9 #C939C6 #C98439 #39C93C

split-complementary

#397EC9 #C93C39 #C6C939

monochromatic

#1D426B #2A609B #397EC9 #699DD6 #99BDE3

Accessibility & contrast

On white

4.20

#397EC9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#397EC9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397EC9

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397EC9	#FFFFFF	#000000	##000000
##397EC9	1.00	4.20	5.00	5.00
#FFFFFF	4.20	1.00	21.00	21.00
#000000	5.00	21.00	1.00	1.00
##000000	5.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C83CC

Deuteranopia (green-blind)

#4675C8

Tritanopia (blue-blind)

#00909A

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #397ec9;
/* rgb */ color: rgb(57, 126, 201);
/* oklch */ color: oklch(58.5% 0.135 252.8);

Tailwind

colors: {
  custom: {
    50: '#81a2da',
    500: '#397ec9',
    950: '#000000',
  },
}

SCSS

$custom: #397ec9;
$custom-light: #81a2da;
$custom-dark: #000000;

JSON

{
  "hex": "#397ec9",
  "rgb": {
    "r": 57,
    "g": 126,
    "b": 201
  },
  "hsl": {
    "h": 211.25,
    "s": 57.143,
    "l": 50.588
  },
  "oklch": {
    "l": 0.58516,
    "c": 0.13479,
    "h": 252.8
  },
  "luminance": 0.20009
}

Semantic roles & 50–950 ramp

primary

#397EC9

secondary

#CFB08F

accent

#9747E0

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0F15

muted

#7D7E83

Preview Lab

Preview with #397EC9

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

Preview Lab → · Contrast checker → · Palette generator →