#397ECF#397ECF

#397ECF is a mid, vivid cyan. Relative luminance 0.203; OKLCH L 58.9% C 0.143 H 254.3°. Best body text is #000000 at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#397ECF
RGB	rgb(57, 126, 207)
HSL	hsl(212, 61%, 52%)
HSV	hsv(212, 72%, 81%)
CMYK	cmyk(72.5%, 39.1%, 0%, 18.8%)
CIE-LAB	lab(52.17, 5.57, -48.12)
CIE-LCH	lch(52.17, 48.44, 276.60°)
OKLab	oklab(58.87% -0.0385 -0.1372)
OKLCH	oklch(58.87% 0.143 254.3)
XYZ	xyz(20.4065, 20.2943, 61.8611)
Luminance	0.2030 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397ECF #CF8A39

analogous

#39C9CF #397ECF #3F39CF

triadic

#397ECF #CF397E #7ECF39

tetradic

#397ECF #CF39C9 #CF8A39 #39CF3F

square

#397ECF #CF39C9 #CF8A39 #39CF3F

split-complementary

#397ECF #CF3F39 #C9CF39

monochromatic

#1C4372 #2860A3 #397ECF #6A9EDB #9CBEE7

Accessibility & contrast

On white

4.15

#397ECF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.06

#397ECF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397ECF

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397ECF	#FFFFFF	#000000	##000000
##397ECF	1.00	4.15	5.06	5.06
#FFFFFF	4.15	1.00	21.00	21.00
#000000	5.06	21.00	1.00	1.00
##000000	5.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5884D2

Deuteranopia (green-blind)

#4176CD

Tritanopia (blue-blind)

#00919C

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #397ecf;
/* rgb */ color: rgb(57, 126, 207);
/* oklch */ color: oklch(58.9% 0.143 254.3);

Tailwind

colors: {
  custom: {
    50: '#82a2de',
    500: '#397ecf',
    950: '#000000',
  },
}

SCSS

$custom: #397ecf;
$custom-light: #82a2de;
$custom-dark: #000000;

JSON

{
  "hex": "#397ecf",
  "rgb": {
    "r": 57,
    "g": 126,
    "b": 207
  },
  "hsl": {
    "h": 212.4,
    "s": 60.976,
    "l": 51.765
  },
  "oklch": {
    "l": 0.58874,
    "c": 0.14253,
    "h": 254.3
  },
  "luminance": 0.20297
}

Semantic roles & 50–950 ramp

primary

#397ECF

secondary

#D3B591

accent

#9A44E4

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0F15

muted

#7D7E83

Preview Lab

Preview with #397ECF

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

Preview Lab → · Contrast checker → · Palette generator →