#397ACB#397ACB

#397ACB is a mid, vivid cyan. Relative luminance 0.191; OKLCH L 57.7% C 0.142 H 255.4°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#397ACB
RGB	rgb(57, 122, 203)
HSL	hsl(213, 58%, 51%)
HSV	hsv(213, 72%, 80%)
CMYK	cmyk(71.9%, 39.9%, 0%, 20.4%)
CIE-LAB	lab(50.80, 6.56, -48.02)
CIE-LCH	lch(50.80, 48.46, 277.78°)
OKLab	oklab(57.74% -0.0358 -0.137)
OKLCH	oklch(57.74% 0.142 255.4)
XYZ	xyz(19.4224, 19.0986, 59.1511)
Luminance	0.1910 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397ACB #CB8A39

analogous

#39C3CB #397ACB #4139CB

triadic

#397ACB #CB397A #7ACB39

tetradic

#397ACB #CB39C3 #CB8A39 #39CB41

square

#397ACB #CB39C3 #CB8A39 #39CB41

split-complementary

#397ACB #CB4139 #C3CB39

monochromatic

#1D406D #295D9D #397ACB #699BD8 #9ABBE4

Accessibility & contrast

On white

4.36

#397ACB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#397ACB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397ACB

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397ACB	#FFFFFF	#000000	##000000
##397ACB	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5480CE

Deuteranopia (green-blind)

#3D73C9

Tritanopia (blue-blind)

#008D98

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #397acb;
/* rgb */ color: rgb(57, 122, 203);
/* oklch */ color: oklch(57.7% 0.142 255.4);

Tailwind

colors: {
  custom: {
    50: '#819fdb',
    500: '#397acb',
    950: '#000000',
  },
}

SCSS

$custom: #397acb;
$custom-light: #819fdb;
$custom-dark: #000000;

JSON

{
  "hex": "#397acb",
  "rgb": {
    "r": 57,
    "g": 122,
    "b": 203
  },
  "hsl": {
    "h": 213.288,
    "s": 58.4,
    "l": 50.98
  },
  "oklch": {
    "l": 0.57739,
    "c": 0.14158,
    "h": 255.4
  },
  "luminance": 0.19101
}

Semantic roles & 50–950 ramp

primary

#397ACB

secondary

#D0B390

accent

#9C46E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #397ACB

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

Preview Lab → · Contrast checker → · Palette generator →