#397DB9#397DB9

#397DB9 is a mid, moderate cyan. Relative luminance 0.190; OKLCH L 57.4% C 0.116 H 248.0°. Best body text is #000000 at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#397DB9
RGB	rgb(57, 125, 185)
HSL	hsl(208, 53%, 47%)
HSV	hsv(208, 69%, 73%)
CMYK	cmyk(69.2%, 32.4%, 0%, 27.5%)
CIE-LAB	lab(50.73, -1.71, -37.82)
CIE-LCH	lch(50.73, 37.86, 267.41°)
OKLab	oklab(57.38% -0.0433 -0.1071)
OKLCH	oklch(57.38% 0.116 248)
XYZ	xyz(17.7746, 19.0380, 48.6275)
Luminance	0.1904 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397DB9 #B97539

analogous

#39B9B5 #397DB9 #393DB9

triadic

#397DB9 #B9397D #7DB939

tetradic

#397DB9 #B539B9 #B97539 #3DB939

square

#397DB9 #B539B9 #B97539 #3DB939

split-complementary

#397DB9 #B9393D #B9B539

monochromatic

#1C3E5B #2B5D8A #397DB9 #619BCE #90B9DD

Accessibility & contrast

On white

4.37

#397DB9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.81

#397DB9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397DB9

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397DB9	#FFFFFF	#000000	##000000
##397DB9	1.00	4.37	4.81	4.81
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.81	21.00	1.00	1.00
##000000	4.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6280BC

Deuteranopia (green-blind)

#5073B8

Tritanopia (blue-blind)

#008B92

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #397db9;
/* rgb */ color: rgb(57, 125, 185);
/* oklch */ color: oklch(57.4% 0.116 248.0);

Tailwind

colors: {
  custom: {
    50: '#7ea2ce',
    500: '#397db9',
    950: '#000000',
  },
}

SCSS

$custom: #397db9;
$custom-light: #7ea2ce;
$custom-dark: #000000;

JSON

{
  "hex": "#397db9",
  "rgb": {
    "r": 57,
    "g": 125,
    "b": 185
  },
  "hsl": {
    "h": 208.125,
    "s": 52.893,
    "l": 47.451
  },
  "oklch": {
    "l": 0.57375,
    "c": 0.11555,
    "h": 248
  },
  "luminance": 0.1904
}

Semantic roles & 50–950 ramp

primary

#397DB9

secondary

#C8A586

accent

#8F4BDC

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0F13

muted

#7C7E82

Preview Lab

Preview with #397DB9

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

Preview Lab → · Contrast checker → · Palette generator →