#397CB2#397CB2

#397CB2 is a mid, moderate cyan. Relative luminance 0.185; OKLCH L 56.8% C 0.108 H 245.7°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).

Color values

HEX	#397CB2
RGB	rgb(57, 124, 178)
HSL	hsl(207, 51%, 46%)
HSV	hsv(207, 68%, 70%)
CMYK	cmyk(68%, 30.3%, 0%, 30.2%)
CIE-LAB	lab(50.09, -3.58, -34.79)
CIE-LCH	lch(50.09, 34.97, 264.13°)
OKLab	oklab(56.76% -0.0444 -0.0983)
OKLCH	oklch(56.76% 0.108 245.7)
XYZ	xyz(16.9278, 18.4977, 44.7891)
Luminance	0.1850 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397CB2 #B26F39

analogous

#39B2AB #397CB2 #393FB2

triadic

#397CB2 #B2397C #7CB239

tetradic

#397CB2 #AB39B2 #B26F39 #3FB239

square

#397CB2 #AB39B2 #B26F39 #3FB239

split-complementary

#397CB2 #B2393F #B2AB39

monochromatic

#1B3B55 #2A5C84 #397CB2 #5D9ACB #8BB7DA

Accessibility & contrast

On white

4.47

#397CB2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.70

#397CB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397CB2

4.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397CB2	#FFFFFF	#000000	##000000
##397CB2	1.00	4.47	4.70	4.70
#FFFFFF	4.47	1.00	21.00	21.00
#000000	4.70	21.00	1.00	1.00
##000000	4.70	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#647EB4

Deuteranopia (green-blind)

#5372B1

Tritanopia (blue-blind)

#00898F

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #397cb2;
/* rgb */ color: rgb(57, 124, 178);
/* oklch */ color: oklch(56.8% 0.108 245.7);

Tailwind

colors: {
  custom: {
    50: '#7da1c9',
    500: '#397cb2',
    950: '#000000',
  },
}

SCSS

$custom: #397cb2;
$custom-light: #7da1c9;
$custom-dark: #000000;

JSON

{
  "hex": "#397cb2",
  "rgb": {
    "r": 57,
    "g": 124,
    "b": 178
  },
  "hsl": {
    "h": 206.777,
    "s": 51.489,
    "l": 46.078
  },
  "oklch": {
    "l": 0.56762,
    "c": 0.10786,
    "h": 245.7
  },
  "luminance": 0.185
}

Semantic roles & 50–950 ramp

primary

#397CB2

secondary

#C4A082

accent

#8C4DDB

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0F13

muted

#7C7E82

Preview Lab

Preview with #397CB2

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

Preview Lab → · Contrast checker → · Palette generator →