#397AA4#397AA4

#397AA4 is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.6% C 0.093 H 239.8°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#397AA4
RGB	rgb(57, 122, 164)
HSL	hsl(204, 48%, 43%)
HSV	hsv(204, 65%, 64%)
CMYK	cmyk(65.2%, 25.6%, 0%, 35.7%)
CIE-LAB	lab(48.84, -7.24, -28.61)
CIE-LCH	lch(48.84, 29.51, 255.80°)
OKLab	oklab(55.56% -0.0468 -0.0804)
OKLCH	oklch(55.56% 0.093 239.8)
XYZ	xyz(15.3452, 17.4677, 37.6777)
Luminance	0.1747 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397AA4 #A46339

analogous

#39A498 #397AA4 #3945A4

triadic

#397AA4 #A4397A #7AA439

tetradic

#397AA4 #9839A4 #A46339 #45A439

square

#397AA4 #9839A4 #A46339 #45A439

split-complementary

#397AA4 #A43945 #A49839

monochromatic

#193649 #295877 #397AA4 #5699C4 #83B4D4

Accessibility & contrast

On white

4.67

#397AA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#397AA4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #397AA4

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397AA4	#FFFFFF	#000000	##FFFFFF
##397AA4	1.00	4.67	4.49	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#677AA6

Deuteranopia (green-blind)

#586FA3

Tritanopia (blue-blind)

#008588

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #397aa4;
/* rgb */ color: rgb(57, 122, 164);
/* oklch */ color: oklch(55.6% 0.093 239.8);

Tailwind

colors: {
  custom: {
    50: '#7ba0bf',
    500: '#397aa4',
    950: '#000000',
  },
}

SCSS

$custom: #397aa4;
$custom-light: #7ba0bf;
$custom-dark: #000000;

JSON

{
  "hex": "#397aa4",
  "rgb": {
    "r": 57,
    "g": 122,
    "b": 164
  },
  "hsl": {
    "h": 203.551,
    "s": 48.416,
    "l": 43.333
  },
  "oklch": {
    "l": 0.5556,
    "c": 0.09308,
    "h": 239.8
  },
  "luminance": 0.17469
}

Semantic roles & 50–950 ramp

primary

#397AA4

secondary

#BE957B

accent

#8550D8

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #397AA4

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

Preview Lab → · Contrast checker → · Palette generator →