#397AAF#397AAF

#397AAF is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 56.1% C 0.106 H 245.9°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#397AAF
RGB	rgb(57, 122, 175)
HSL	hsl(207, 51%, 45%)
HSV	hsv(207, 67%, 69%)
CMYK	cmyk(67.4%, 30.3%, 0%, 31.4%)
CIE-LAB	lab(49.35, -3.44, -34.21)
CIE-LCH	lch(49.35, 34.39, 264.26°)
OKLab	oklab(56.13% -0.0433 -0.0966)
OKLCH	oklch(56.13% 0.106 245.9)
XYZ	xyz(16.3818, 17.8824, 43.1374)
Luminance	0.1788 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397AAF #AF6E39

analogous

#39AFA9 #397AAF #393FAF

triadic

#397AAF #AF397A #7AAF39

tetradic

#397AAF #A939AF #AF6E39 #3FAF39

square

#397AAF #A939AF #AF6E39 #3FAF39

split-complementary

#397AAF #AF393F #AFA939

monochromatic

#1B3A53 #2A5A81 #397AAF #5B98CA #8AB5D9

Accessibility & contrast

On white

4.59

#397AAF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.58

#397AAF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #397AAF

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397AAF	#FFFFFF	#000000	##FFFFFF
##397AAF	1.00	4.59	4.58	4.59
#FFFFFF	4.59	1.00	21.00	1.00
#000000	4.58	21.00	1.00	21.00
##FFFFFF	4.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#627CB1

Deuteranopia (green-blind)

#5270AE

Tritanopia (blue-blind)

#00878D

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #397aaf;
/* rgb */ color: rgb(57, 122, 175);
/* oklch */ color: oklch(56.1% 0.106 245.9);

Tailwind

colors: {
  custom: {
    50: '#7ca0c7',
    500: '#397aaf',
    950: '#000000',
  },
}

SCSS

$custom: #397aaf;
$custom-light: #7ca0c7;
$custom-dark: #000000;

JSON

{
  "hex": "#397aaf",
  "rgb": {
    "r": 57,
    "g": 122,
    "b": 175
  },
  "hsl": {
    "h": 206.949,
    "s": 50.862,
    "l": 45.49
  },
  "oklch": {
    "l": 0.5613,
    "c": 0.10589,
    "h": 245.9
  },
  "luminance": 0.17884
}

Semantic roles & 50–950 ramp

primary

#397AAF

secondary

#C39F81

accent

#8D4DDA

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #397AAF

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

Preview Lab → · Contrast checker → · Palette generator →