#397AB2#397AB2

#397AB2 is a mid, moderate cyan. Relative luminance 0.180; OKLCH L 56.3% C 0.110 H 247.3°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#397AB2
RGB	rgb(57, 122, 178)
HSL	hsl(208, 51%, 46%)
HSV	hsv(208, 68%, 70%)
CMYK	cmyk(68%, 31.5%, 0%, 30.2%)
CIE-LAB	lab(49.50, -2.39, -35.72)
CIE-LCH	lch(49.50, 35.80, 266.18°)
OKLab	oklab(56.29% -0.0423 -0.101)
OKLCH	oklch(56.29% 0.11 247.3)
XYZ	xyz(16.6797, 18.0015, 44.7064)
Luminance	0.1800 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397AB2 #B27139

analogous

#39B2AD #397AB2 #393DB2

triadic

#397AB2 #B2397A #7AB239

tetradic

#397AB2 #AD39B2 #B27139 #3DB239

square

#397AB2 #AD39B2 #B27139 #3DB239

split-complementary

#397AB2 #B2393D #B2AD39

monochromatic

#1B3A55 #2A5A84 #397AB2 #5D98CB #8BB6DA

Accessibility & contrast

On white

4.56

#397AB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#397AB2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397AB2

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397AB2	#FFFFFF	#000000	##000000
##397AB2	1.00	4.56	4.60	4.60
#FFFFFF	4.56	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#617CB4

Deuteranopia (green-blind)

#5070B1

Tritanopia (blue-blind)

#00878E

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #397ab2;
/* rgb */ color: rgb(57, 122, 178);
/* oklch */ color: oklch(56.3% 0.110 247.3);

Tailwind

colors: {
  custom: {
    50: '#7da0c9',
    500: '#397ab2',
    950: '#000000',
  },
}

SCSS

$custom: #397ab2;
$custom-light: #7da0c9;
$custom-dark: #000000;

JSON

{
  "hex": "#397ab2",
  "rgb": {
    "r": 57,
    "g": 122,
    "b": 178
  },
  "hsl": {
    "h": 207.769,
    "s": 51.489,
    "l": 46.078
  },
  "oklch": {
    "l": 0.56292,
    "c": 0.10956,
    "h": 247.3
  },
  "luminance": 0.18003
}

Semantic roles & 50–950 ramp

primary

#397AB2

secondary

#C4A182

accent

#8F4DDB

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #397AB2

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

Preview Lab → · Contrast checker → · Palette generator →