#397CA8#397CA8

#397CA8 is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.2% C 0.096 H 240.3°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#397CA8
RGB	rgb(57, 124, 168)
HSL	hsl(204, 49%, 44%)
HSV	hsv(204, 66%, 66%)
CMYK	cmyk(66.1%, 26.2%, 0%, 34.1%)
CIE-LAB	lab(49.63, -7.04, -29.72)
CIE-LCH	lch(49.63, 30.54, 256.67°)
OKLab	oklab(56.24% -0.0476 -0.0836)
OKLCH	oklch(56.24% 0.096 240.3)
XYZ	xyz(15.9602, 18.1107, 39.6928)
Luminance	0.1811 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397CA8 #A86539

analogous

#39A89D #397CA8 #3945A8

triadic

#397CA8 #A8397C #7CA839

tetradic

#397CA8 #9D39A8 #A86539 #45A839

square

#397CA8 #9D39A8 #A86539 #45A839

split-complementary

#397CA8 #A83945 #A89D39

monochromatic

#1A394D #295A7A #397CA8 #589BC6 #86B6D6

Accessibility & contrast

On white

4.54

#397CA8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#397CA8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397CA8

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397CA8	#FFFFFF	#000000	##000000
##397CA8	1.00	4.54	4.62	4.62
#FFFFFF	4.54	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#687CAA

Deuteranopia (green-blind)

#5971A7

Tritanopia (blue-blind)

#00878B

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #397ca8;
/* rgb */ color: rgb(57, 124, 168);
/* oklch */ color: oklch(56.2% 0.096 240.3);

Tailwind

colors: {
  custom: {
    50: '#7ba1c2',
    500: '#397ca8',
    950: '#000000',
  },
}

SCSS

$custom: #397ca8;
$custom-light: #7ba1c2;
$custom-dark: #000000;

JSON

{
  "hex": "#397ca8",
  "rgb": {
    "r": 57,
    "g": 124,
    "b": 168
  },
  "hsl": {
    "h": 203.784,
    "s": 49.333,
    "l": 44.118
  },
  "oklch": {
    "l": 0.56242,
    "c": 0.09622,
    "h": 240.3
  },
  "luminance": 0.18112
}

Semantic roles & 50–950 ramp

primary

#397CA8

secondary

#C0977D

accent

#864FD9

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #397CA8

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

Preview Lab → · Contrast checker → · Palette generator →