#397AB8#397AB8

#397AB8 is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.6% C 0.117 H 249.7°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#397AB8
RGB	rgb(57, 122, 184)
HSL	hsl(209, 53%, 47%)
HSV	hsv(209, 69%, 72%)
CMYK	cmyk(69%, 33.7%, 0%, 27.8%)
CIE-LAB	lab(49.80, -0.27, -38.72)
CIE-LCH	lch(49.80, 38.72, 269.61°)
OKLab	oklab(56.62% -0.0406 -0.1098)
OKLCH	oklch(56.62% 0.117 249.7)
XYZ	xyz(17.2954, 18.2478, 47.9488)
Luminance	0.1825 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397AB8 #B87739

analogous

#39B8B6 #397AB8 #393BB8

triadic

#397AB8 #B8397A #7AB839

tetradic

#397AB8 #B639B8 #B87739 #3BB839

square

#397AB8 #B639B8 #B87739 #3BB839

split-complementary

#397AB8 #B8393B #B8B639

monochromatic

#1C3C5B #2B5B89 #397AB8 #6098CE #8FB7DC

Accessibility & contrast

On white

4.52

#397AB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#397AB8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397AB8

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397AB8	#FFFFFF	#000000	##000000
##397AB8	1.00	4.52	4.65	4.65
#FFFFFF	4.52	1.00	21.00	21.00
#000000	4.65	21.00	1.00	1.00
##000000	4.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E7DBB

Deuteranopia (green-blind)

#4D71B7

Tritanopia (blue-blind)

#008990

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #397ab8;
/* rgb */ color: rgb(57, 122, 184);
/* oklch */ color: oklch(56.6% 0.117 249.7);

Tailwind

colors: {
  custom: {
    50: '#7ea0cd',
    500: '#397ab8',
    950: '#000000',
  },
}

SCSS

$custom: #397ab8;
$custom-light: #7ea0cd;
$custom-dark: #000000;

JSON

{
  "hex": "#397ab8",
  "rgb": {
    "r": 57,
    "g": 122,
    "b": 184
  },
  "hsl": {
    "h": 209.291,
    "s": 52.697,
    "l": 47.255
  },
  "oklch": {
    "l": 0.56623,
    "c": 0.11704,
    "h": 249.7
  },
  "luminance": 0.1825
}

Semantic roles & 50–950 ramp

primary

#397AB8

secondary

#C7A686

accent

#924CDC

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #397AB8

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

Preview Lab → · Contrast checker → · Palette generator →