#397CB0#397CB0

#397CB0 is a mid, moderate cyan. Relative luminance 0.184; OKLCH L 56.7% C 0.105 H 244.7°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#397CB0
RGB	rgb(57, 124, 176)
HSL	hsl(206, 51%, 46%)
HSV	hsv(206, 68%, 69%)
CMYK	cmyk(67.6%, 29.5%, 0%, 31%)
CIE-LAB	lab(50.00, -4.27, -33.78)
CIE-LCH	lch(50.00, 34.05, 262.79°)
OKLab	oklab(56.66% -0.045 -0.0954)
OKLCH	oklch(56.66% 0.105 244.7)
XYZ	xyz(16.7285, 18.4180, 43.7393)
Luminance	0.1842 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397CB0 #B06D39

analogous

#39B0A8 #397CB0 #3941B0

triadic

#397CB0 #B0397C #7CB039

tetradic

#397CB0 #A839B0 #B06D39 #41B039

square

#397CB0 #A839B0 #B06D39 #41B039

split-complementary

#397CB0 #B03941 #B0A839

monochromatic

#1B3B54 #2A5B82 #397CB0 #5C9ACA #8AB7D9

Accessibility & contrast

On white

4.48

#397CB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#397CB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397CB0

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397CB0	#FFFFFF	#000000	##000000
##397CB0	1.00	4.48	4.68	4.68
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#657DB2

Deuteranopia (green-blind)

#5472AF

Tritanopia (blue-blind)

#00898E

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #397cb0;
/* rgb */ color: rgb(57, 124, 176);
/* oklch */ color: oklch(56.7% 0.105 244.7);

Tailwind

colors: {
  custom: {
    50: '#7ca1c8',
    500: '#397cb0',
    950: '#000000',
  },
}

SCSS

$custom: #397cb0;
$custom-light: #7ca1c8;
$custom-dark: #000000;

JSON

{
  "hex": "#397cb0",
  "rgb": {
    "r": 57,
    "g": 124,
    "b": 176
  },
  "hsl": {
    "h": 206.218,
    "s": 51.073,
    "l": 45.686
  },
  "oklch": {
    "l": 0.56655,
    "c": 0.10547,
    "h": 244.7
  },
  "luminance": 0.1842
}

Semantic roles & 50–950 ramp

primary

#397CB0

secondary

#C49E81

accent

#8B4DDB

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0F13

muted

#7C7E82

Preview Lab

Preview with #397CB0

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

Preview Lab → · Contrast checker → · Palette generator →