#397CB8#397CB8

#397CB8 is a mid, moderate cyan. Relative luminance 0.187; OKLCH L 57.1% C 0.115 H 248.3°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#397CB8
RGB	rgb(57, 124, 184)
HSL	hsl(208, 53%, 47%)
HSV	hsv(208, 69%, 72%)
CMYK	cmyk(69%, 32.6%, 0%, 27.8%)
CIE-LAB	lab(50.39, -1.46, -37.79)
CIE-LCH	lch(50.39, 37.82, 267.78°)
OKLab	oklab(57.09% -0.0426 -0.107)
OKLCH	oklch(57.09% 0.115 248.3)
XYZ	xyz(17.5435, 18.7440, 48.0315)
Luminance	0.1875 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397CB8 #B87539

analogous

#39B8B4 #397CB8 #393DB8

triadic

#397CB8 #B8397C #7CB839

tetradic

#397CB8 #B439B8 #B87539 #3DB839

square

#397CB8 #B439B8 #B87539 #3DB839

split-complementary

#397CB8 #B8393D #B8B439

monochromatic

#1C3D5B #2B5D89 #397CB8 #609ACE #8FB8DC

Accessibility & contrast

On white

4.42

#397CB8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#397CB8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397CB8

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397CB8	#FFFFFF	#000000	##000000
##397CB8	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#617FBB

Deuteranopia (green-blind)

#5072B7

Tritanopia (blue-blind)

#008A91

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #397cb8;
/* rgb */ color: rgb(57, 124, 184);
/* oklch */ color: oklch(57.1% 0.115 248.3);

Tailwind

colors: {
  custom: {
    50: '#7ea1cd',
    500: '#397cb8',
    950: '#000000',
  },
}

SCSS

$custom: #397cb8;
$custom-light: #7ea1cd;
$custom-dark: #000000;

JSON

{
  "hex": "#397cb8",
  "rgb": {
    "r": 57,
    "g": 124,
    "b": 184
  },
  "hsl": {
    "h": 208.346,
    "s": 52.697,
    "l": 47.255
  },
  "oklch": {
    "l": 0.57087,
    "c": 0.11521,
    "h": 248.3
  },
  "luminance": 0.18746
}

Semantic roles & 50–950 ramp

primary

#397CB8

secondary

#C7A586

accent

#904CDC

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #397CB8

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

Preview Lab → · Contrast checker → · Palette generator →