#397AB7#397AB7

#397AB7 is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.6% C 0.116 H 249.3°. Best body text is #000000 at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#397AB7
RGB	rgb(57, 122, 183)
HSL	hsl(209, 53%, 47%)
HSV	hsv(209, 69%, 72%)
CMYK	cmyk(68.9%, 33.3%, 0%, 28.2%)
CIE-LAB	lab(49.74, -0.62, -38.22)
CIE-LCH	lch(49.74, 38.23, 269.07°)
OKLab	oklab(56.57% -0.0409 -0.1083)
OKLCH	oklch(56.57% 0.116 249.3)
XYZ	xyz(17.1909, 18.2060, 47.3987)
Luminance	0.1821 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397AB7 #B77639

analogous

#39B7B5 #397AB7 #393BB7

triadic

#397AB7 #B7397A #7AB739

tetradic

#397AB7 #B539B7 #B77639 #3BB739

square

#397AB7 #B539B7 #B77639 #3BB739

split-complementary

#397AB7 #B7393B #B7B539

monochromatic

#1C3C5A #2A5B88 #397AB7 #6098CD #8EB6DC

Accessibility & contrast

On white

4.52

#397AB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.64

#397AB7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397AB7

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397AB7	#FFFFFF	#000000	##000000
##397AB7	1.00	4.52	4.64	4.64
#FFFFFF	4.52	1.00	21.00	21.00
#000000	4.64	21.00	1.00	1.00
##000000	4.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F7DBA

Deuteranopia (green-blind)

#4D71B6

Tritanopia (blue-blind)

#008890

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #397ab7;
/* rgb */ color: rgb(57, 122, 183);
/* oklch */ color: oklch(56.6% 0.116 249.3);

Tailwind

colors: {
  custom: {
    50: '#7ea0cd',
    500: '#397ab7',
    950: '#000000',
  },
}

SCSS

$custom: #397ab7;
$custom-light: #7ea0cd;
$custom-dark: #000000;

JSON

{
  "hex": "#397ab7",
  "rgb": {
    "r": 57,
    "g": 122,
    "b": 183
  },
  "hsl": {
    "h": 209.048,
    "s": 52.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.56567,
    "c": 0.11579,
    "h": 249.3
  },
  "luminance": 0.18208
}

Semantic roles & 50–950 ramp

primary

#397AB7

secondary

#C7A585

accent

#924CDC

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #397AB7

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

Preview Lab → · Contrast checker → · Palette generator →