#397CC9#397CC9

#397CC9 is a mid, vivid cyan. Relative luminance 0.195; OKLCH L 58.1% C 0.137 H 253.8°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#397CC9
RGB	rgb(57, 124, 201)
HSL	hsl(212, 57%, 51%)
HSV	hsv(212, 72%, 79%)
CMYK	cmyk(71.6%, 38.3%, 0%, 21.2%)
CIE-LAB	lab(51.27, 4.62, -46.14)
CIE-LCH	lch(51.27, 46.37, 275.71°)
OKLab	oklab(58.07% -0.0381 -0.1314)
OKLCH	oklch(58.07% 0.137 253.8)
XYZ	xyz(19.4337, 19.5001, 57.9867)
Luminance	0.1950 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397CC9 #C98639

analogous

#39C4C9 #397CC9 #3E39C9

triadic

#397CC9 #C9397C #7CC939

tetradic

#397CC9 #C939C4 #C98639 #39C93E

square

#397CC9 #C939C4 #C98639 #39C93E

split-complementary

#397CC9 #C93E39 #C4C939

monochromatic

#1D416B #2A5E9B #397CC9 #699CD6 #99BCE3

Accessibility & contrast

On white

4.29

#397CC9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#397CC9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397CC9

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397CC9	#FFFFFF	#000000	##000000
##397CC9	1.00	4.29	4.90	4.90
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5881CC

Deuteranopia (green-blind)

#4374C7

Tritanopia (blue-blind)

#008E99

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #397cc9;
/* rgb */ color: rgb(57, 124, 201);
/* oklch */ color: oklch(58.1% 0.137 253.8);

Tailwind

colors: {
  custom: {
    50: '#81a1da',
    500: '#397cc9',
    950: '#000000',
  },
}

SCSS

$custom: #397cc9;
$custom-light: #81a1da;
$custom-dark: #000000;

JSON

{
  "hex": "#397cc9",
  "rgb": {
    "r": 57,
    "g": 124,
    "b": 201
  },
  "hsl": {
    "h": 212.083,
    "s": 57.143,
    "l": 50.588
  },
  "oklch": {
    "l": 0.58065,
    "c": 0.13685,
    "h": 253.8
  },
  "luminance": 0.19502
}

Semantic roles & 50–950 ramp

primary

#397CC9

secondary

#CFB18F

accent

#9947E0

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #397CC9

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

Preview Lab → · Contrast checker → · Palette generator →