#397ECC#397ECC

#397ECC is a mid, vivid cyan. Relative luminance 0.202; OKLCH L 58.7% C 0.139 H 253.6°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#397ECC
RGB	rgb(57, 126, 204)
HSL	hsl(212, 59%, 51%)
HSV	hsv(212, 72%, 80%)
CMYK	cmyk(72.1%, 38.2%, 0%, 20%)
CIE-LAB	lab(52.01, 4.48, -46.67)
CIE-LCH	lch(52.01, 46.89, 275.49°)
OKLab	oklab(58.69% -0.0392 -0.133)
OKLCH	oklch(58.69% 0.139 253.6)
XYZ	xyz(20.0432, 20.1490, 59.9478)
Luminance	0.2015 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397ECC #CC8739

analogous

#39C7CC #397ECC #3D39CC

triadic

#397ECC #CC397E #7ECC39

tetradic

#397ECC #CC39C7 #CC8739 #39CC3D

square

#397ECC #CC39C7 #CC8739 #39CC3D

split-complementary

#397ECC #CC3D39 #C7CC39

monochromatic

#1C436E #29609F #397ECC #6A9ED9 #9ABDE5

Accessibility & contrast

On white

4.17

#397ECC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#397ECC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397ECC

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397ECC	#FFFFFF	#000000	##000000
##397ECC	1.00	4.17	5.03	5.03
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A83CF

Deuteranopia (green-blind)

#4376CA

Tritanopia (blue-blind)

#00909B

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #397ecc;
/* rgb */ color: rgb(57, 126, 204);
/* oklch */ color: oklch(58.7% 0.139 253.6);

Tailwind

colors: {
  custom: {
    50: '#81a2dc',
    500: '#397ecc',
    950: '#000000',
  },
}

SCSS

$custom: #397ecc;
$custom-light: #81a2dc;
$custom-dark: #000000;

JSON

{
  "hex": "#397ecc",
  "rgb": {
    "r": 57,
    "g": 126,
    "b": 204
  },
  "hsl": {
    "h": 211.837,
    "s": 59.036,
    "l": 51.176
  },
  "oklch": {
    "l": 0.58694,
    "c": 0.13865,
    "h": 253.6
  },
  "luminance": 0.20151
}

Semantic roles & 50–950 ramp

primary

#397ECC

secondary

#D1B290

accent

#9946E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0F15

muted

#7D7E83

Preview Lab

Preview with #397ECC

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

Preview Lab → · Contrast checker → · Palette generator →