#397DCC#397DCC

#397DCC is a mid, vivid cyan. Relative luminance 0.199; OKLCH L 58.5% C 0.140 H 254.1°. Best body text is #000000 at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#397DCC
RGB	rgb(57, 125, 204)
HSL	hsl(212, 59%, 51%)
HSV	hsv(212, 72%, 80%)
CMYK	cmyk(72.1%, 38.7%, 0%, 20%)
CIE-LAB	lab(51.72, 5.09, -47.13)
CIE-LCH	lch(51.72, 47.40, 276.17°)
OKLab	oklab(58.47% -0.0383 -0.1343)
OKLCH	oklch(58.47% 0.14 254.1)
XYZ	xyz(19.9160, 19.8945, 59.9054)
Luminance	0.1990 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397DCC #CC8839

analogous

#39C6CC #397DCC #3E39CC

triadic

#397DCC #CC397D #7DCC39

tetradic

#397DCC #CC39C6 #CC8839 #39CC3E

square

#397DCC #CC39C6 #CC8839 #39CC3E

split-complementary

#397DCC #CC3E39 #C6CC39

monochromatic

#1C426E #295F9F #397DCC #6A9DD9 #9ABDE5

Accessibility & contrast

On white

4.22

#397DCC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.98

#397DCC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397DCC

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397DCC	#FFFFFF	#000000	##000000
##397DCC	1.00	4.22	4.98	4.98
#FFFFFF	4.22	1.00	21.00	21.00
#000000	4.98	21.00	1.00	1.00
##000000	4.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5883CF

Deuteranopia (green-blind)

#4275CA

Tritanopia (blue-blind)

#00909B

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #397dcc;
/* rgb */ color: rgb(57, 125, 204);
/* oklch */ color: oklch(58.5% 0.140 254.1);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#397dcc",
  "rgb": {
    "r": 57,
    "g": 125,
    "b": 204
  },
  "hsl": {
    "h": 212.245,
    "s": 59.036,
    "l": 51.176
  },
  "oklch": {
    "l": 0.5847,
    "c": 0.1397,
    "h": 254.1
  },
  "luminance": 0.19897
}

Semantic roles & 50–950 ramp

primary

#397DCC

secondary

#D1B390

accent

#9A46E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0F15

muted

#7D7E83

Preview Lab

Preview with #397DCC

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

Preview Lab → · Contrast checker → · Palette generator →