#397DB7#397DB7

#397DB7 is a mid, moderate cyan. Relative luminance 0.190; OKLCH L 57.3% C 0.113 H 247.2°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#397DB7
RGB	rgb(57, 125, 183)
HSL	hsl(208, 53%, 47%)
HSV	hsv(208, 69%, 72%)
CMYK	cmyk(68.9%, 31.7%, 0%, 28.2%)
CIE-LAB	lab(50.63, -2.41, -36.82)
CIE-LCH	lch(50.63, 36.90, 266.25°)
OKLab	oklab(57.27% -0.0439 -0.1042)
OKLCH	oklch(57.27% 0.113 247.2)
XYZ	xyz(17.5650, 18.9541, 47.5234)
Luminance	0.1896 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397DB7 #B77339

analogous

#39B7B2 #397DB7 #393EB7

triadic

#397DB7 #B7397D #7DB739

tetradic

#397DB7 #B239B7 #B77339 #3EB739

square

#397DB7 #B239B7 #B77339 #3EB739

split-complementary

#397DB7 #B7393E #B7B239

monochromatic

#1C3D5A #2A5D88 #397DB7 #609BCD #8EB8DC

Accessibility & contrast

On white

4.38

#397DB7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#397DB7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397DB7

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397DB7	#FFFFFF	#000000	##000000
##397DB7	1.00	4.38	4.79	4.79
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.79	21.00	1.00	1.00
##000000	4.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#637FBA

Deuteranopia (green-blind)

#5273B6

Tritanopia (blue-blind)

#008B92

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #397db7;
/* rgb */ color: rgb(57, 125, 183);
/* oklch */ color: oklch(57.3% 0.113 247.2);

Tailwind

colors: {
  custom: {
    50: '#7ea2cd',
    500: '#397db7',
    950: '#000000',
  },
}

SCSS

$custom: #397db7;
$custom-light: #7ea2cd;
$custom-dark: #000000;

JSON

{
  "hex": "#397db7",
  "rgb": {
    "r": 57,
    "g": 125,
    "b": 183
  },
  "hsl": {
    "h": 207.619,
    "s": 52.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.57266,
    "c": 0.11309,
    "h": 247.2
  },
  "luminance": 0.18956
}

Semantic roles & 50–950 ramp

primary

#397DB7

secondary

#C7A385

accent

#8E4CDC

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0F13

muted

#7C7E82

Preview Lab

Preview with #397DB7

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

Preview Lab → · Contrast checker → · Palette generator →