#397BCF#397BCF

#397BCF is a mid, vivid cyan. Relative luminance 0.195; OKLCH L 58.2% C 0.146 H 255.8°. Best body text is #000000 at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#397BCF
RGB	rgb(57, 123, 207)
HSL	hsl(214, 61%, 52%)
HSV	hsv(214, 72%, 81%)
CMYK	cmyk(72.5%, 40.6%, 0%, 18.8%)
CIE-LAB	lab(51.31, 7.40, -49.48)
CIE-LCH	lch(51.31, 50.03, 278.51°)
OKLab	oklab(58.21% -0.0358 -0.1413)
OKLCH	oklch(58.21% 0.146 255.8)
XYZ	xyz(20.0286, 19.5386, 61.7351)
Luminance	0.1954 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397BCF #CF8D39

analogous

#39C6CF #397BCF #4239CF

triadic

#397BCF #CF397B #7BCF39

tetradic

#397BCF #CF39C6 #CF8D39 #39CF42

square

#397BCF #CF39C6 #CF8D39 #39CF42

split-complementary

#397BCF #CF4239 #C6CF39

monochromatic

#1C4272 #285EA3 #397BCF #6A9CDB #9CBDE7

Accessibility & contrast

On white

4.28

#397BCF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.91

#397BCF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397BCF

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397BCF	#FFFFFF	#000000	##000000
##397BCF	1.00	4.28	4.91	4.91
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.91	21.00	1.00	1.00
##000000	4.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5382D2

Deuteranopia (green-blind)

#3B74CD

Tritanopia (blue-blind)

#008F9B

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #397bcf;
/* rgb */ color: rgb(57, 123, 207);
/* oklch */ color: oklch(58.2% 0.146 255.8);

Tailwind

colors: {
  custom: {
    50: '#82a0de',
    500: '#397bcf',
    950: '#000000',
  },
}

SCSS

$custom: #397bcf;
$custom-light: #82a0de;
$custom-dark: #000000;

JSON

{
  "hex": "#397bcf",
  "rgb": {
    "r": 57,
    "g": 123,
    "b": 207
  },
  "hsl": {
    "h": 213.6,
    "s": 60.976,
    "l": 51.765
  },
  "oklch": {
    "l": 0.58207,
    "c": 0.14574,
    "h": 255.8
  },
  "luminance": 0.19541
}

Semantic roles & 50–950 ramp

primary

#397BCF

secondary

#D3B691

accent

#9E44E4

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #397BCF

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

Preview Lab → · Contrast checker → · Palette generator →