#397DB8#397DB8

#397DB8 is a mid, moderate cyan. Relative luminance 0.190; OKLCH L 57.3% C 0.114 H 247.6°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#397DB8
RGB	rgb(57, 125, 184)
HSL	hsl(208, 53%, 47%)
HSV	hsv(208, 69%, 72%)
CMYK	cmyk(69%, 32.1%, 0%, 27.8%)
CIE-LAB	lab(50.68, -2.06, -37.32)
CIE-LCH	lch(50.68, 37.38, 266.84°)
OKLab	oklab(57.32% -0.0436 -0.1057)
OKLCH	oklch(57.32% 0.114 247.6)
XYZ	xyz(17.6694, 18.9959, 48.0735)
Luminance	0.1900 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397DB8 #B87439

analogous

#39B8B4 #397DB8 #393EB8

triadic

#397DB8 #B8397D #7DB839

tetradic

#397DB8 #B439B8 #B87439 #3EB839

square

#397DB8 #B439B8 #B87439 #3EB839

split-complementary

#397DB8 #B8393E #B8B439

monochromatic

#1C3E5B #2B5D89 #397DB8 #609BCE #8FB8DC

Accessibility & contrast

On white

4.38

#397DB8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.80

#397DB8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397DB8

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397DB8	#FFFFFF	#000000	##000000
##397DB8	1.00	4.38	4.80	4.80
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.80	21.00	1.00	1.00
##000000	4.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#637FBB

Deuteranopia (green-blind)

#5173B7

Tritanopia (blue-blind)

#008B92

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #397db8;
/* rgb */ color: rgb(57, 125, 184);
/* oklch */ color: oklch(57.3% 0.114 247.6);

Tailwind

colors: {
  custom: {
    50: '#7ea2cd',
    500: '#397db8',
    950: '#000000',
  },
}

SCSS

$custom: #397db8;
$custom-light: #7ea2cd;
$custom-dark: #000000;

JSON

{
  "hex": "#397db8",
  "rgb": {
    "r": 57,
    "g": 125,
    "b": 184
  },
  "hsl": {
    "h": 207.874,
    "s": 52.697,
    "l": 47.255
  },
  "oklch": {
    "l": 0.5732,
    "c": 0.11432,
    "h": 247.6
  },
  "luminance": 0.18998
}

Semantic roles & 50–950 ramp

primary

#397DB8

secondary

#C7A486

accent

#8F4CDC

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0F13

muted

#7C7E82

Preview Lab

Preview with #397DB8

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

Preview Lab → · Contrast checker → · Palette generator →