#397FB5#397FB5

#397FB5 is a mid, moderate cyan. Relative luminance 0.194; OKLCH L 57.6% C 0.109 H 244.7°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#397FB5
RGB	rgb(57, 127, 181)
HSL	hsl(206, 52%, 47%)
HSV	hsv(206, 69%, 71%)
CMYK	cmyk(68.5%, 29.8%, 0%, 29%)
CIE-LAB	lab(51.13, -4.30, -34.89)
CIE-LCH	lch(51.13, 35.15, 262.98°)
OKLab	oklab(57.63% -0.0466 -0.0986)
OKLCH	oklch(57.63% 0.109 244.7)
XYZ	xyz(17.6140, 19.3829, 46.5201)
Luminance	0.1938 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397FB5 #B56F39

analogous

#39B5AD #397FB5 #3941B5

triadic

#397FB5 #B5397F #7FB539

tetradic

#397FB5 #AD39B5 #B56F39 #41B539

square

#397FB5 #AD39B5 #B56F39 #41B539

split-complementary

#397FB5 #B53941 #B5AD39

monochromatic

#1C3E58 #2A5E86 #397FB5 #5F9DCD #8DB9DB

Accessibility & contrast

On white

4.31

#397FB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#397FB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397FB5

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397FB5	#FFFFFF	#000000	##000000
##397FB5	1.00	4.31	4.88	4.88
#FFFFFF	4.31	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6780B7

Deuteranopia (green-blind)

#5674B4

Tritanopia (blue-blind)

#008C92

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #397fb5;
/* rgb */ color: rgb(57, 127, 181);
/* oklch */ color: oklch(57.6% 0.109 244.7);

Tailwind

colors: {
  custom: {
    50: '#7da3cb',
    500: '#397fb5',
    950: '#000000',
  },
}

SCSS

$custom: #397fb5;
$custom-light: #7da3cb;
$custom-dark: #000000;

JSON

{
  "hex": "#397fb5",
  "rgb": {
    "r": 57,
    "g": 127,
    "b": 181
  },
  "hsl": {
    "h": 206.129,
    "s": 52.101,
    "l": 46.667
  },
  "oklch": {
    "l": 0.57627,
    "c": 0.10901,
    "h": 244.7
  },
  "luminance": 0.19385
}

Semantic roles & 50–950 ramp

primary

#397FB5

secondary

#C6A184

accent

#8B4CDC

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #397FB5

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

Preview Lab → · Contrast checker → · Palette generator →