#397BAF#397BAF

#397BAF is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.4% C 0.105 H 245.1°. Best body text is #000000 at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#397BAF
RGB	rgb(57, 123, 175)
HSL	hsl(206, 51%, 45%)
HSV	hsv(206, 67%, 69%)
CMYK	cmyk(67.4%, 29.7%, 0%, 31.4%)
CIE-LAB	lab(49.65, -4.03, -33.74)
CIE-LCH	lch(49.65, 33.98, 263.19°)
OKLab	oklab(56.37% -0.0443 -0.0953)
OKLCH	oklch(56.37% 0.105 245.1)
XYZ	xyz(16.5052, 18.1292, 43.1786)
Luminance	0.1813 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397BAF #AF6D39

analogous

#39AFA8 #397BAF #3940AF

triadic

#397BAF #AF397B #7BAF39

tetradic

#397BAF #A839AF #AF6D39 #40AF39

square

#397BAF #A839AF #AF6D39 #40AF39

split-complementary

#397BAF #AF3940 #AFA839

monochromatic

#1B3A53 #2A5B81 #397BAF #5B99CA #8AB6D9

Accessibility & contrast

On white

4.54

#397BAF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.63

#397BAF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397BAF

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397BAF	#FFFFFF	#000000	##000000
##397BAF	1.00	4.54	4.63	4.63
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.63	21.00	1.00	1.00
##000000	4.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#647CB1

Deuteranopia (green-blind)

#5471AE

Tritanopia (blue-blind)

#00888D

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #397baf;
/* rgb */ color: rgb(57, 123, 175);
/* oklch */ color: oklch(56.4% 0.105 245.1);

Tailwind

colors: {
  custom: {
    50: '#7ca1c7',
    500: '#397baf',
    950: '#000000',
  },
}

SCSS

$custom: #397baf;
$custom-light: #7ca1c7;
$custom-dark: #000000;

JSON

{
  "hex": "#397baf",
  "rgb": {
    "r": 57,
    "g": 123,
    "b": 175
  },
  "hsl": {
    "h": 206.441,
    "s": 50.862,
    "l": 45.49
  },
  "oklch": {
    "l": 0.56366,
    "c": 0.10508,
    "h": 245.1
  },
  "luminance": 0.18131
}

Semantic roles & 50–950 ramp

primary

#397BAF

secondary

#C39E81

accent

#8C4DDA

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #397BAF

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

Preview Lab → · Contrast checker → · Palette generator →