#397FBC#397FBC

#397FBC is a mid, moderate cyan. Relative luminance 0.197; OKLCH L 58.0% C 0.117 H 247.8°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#397FBC
RGB	rgb(57, 127, 188)
HSL	hsl(208, 53%, 48%)
HSV	hsv(208, 70%, 74%)
CMYK	cmyk(69.7%, 32.4%, 0%, 26.3%)
CIE-LAB	lab(51.47, -1.84, -38.38)
CIE-LCH	lch(51.47, 38.42, 267.26°)
OKLab	oklab(58.01% -0.0445 -0.1087)
OKLCH	oklch(58.01% 0.117 247.8)
XYZ	xyz(18.3504, 19.6775, 50.3982)
Luminance	0.1968 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397FBC #BC7639

analogous

#39BCB7 #397FBC #393EBC

triadic

#397FBC #BC397F #7FBC39

tetradic

#397FBC #B739BC #BC7639 #3EBC39

square

#397FBC #B739BC #BC7639 #3EBC39

split-complementary

#397FBC #BC393E #BCB739

monochromatic

#1D405E #2B5F8D #397FBC #639DD0 #92BADE

Accessibility & contrast

On white

4.25

#397FBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#397FBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397FBC

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397FBC	#FFFFFF	#000000	##000000
##397FBC	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6482BF

Deuteranopia (green-blind)

#5175BB

Tritanopia (blue-blind)

#008E95

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #397fbc;
/* rgb */ color: rgb(57, 127, 188);
/* oklch */ color: oklch(58.0% 0.117 247.8);

Tailwind

colors: {
  custom: {
    50: '#7ea3d0',
    500: '#397fbc',
    950: '#000000',
  },
}

SCSS

$custom: #397fbc;
$custom-light: #7ea3d0;
$custom-dark: #000000;

JSON

{
  "hex": "#397fbc",
  "rgb": {
    "r": 57,
    "g": 127,
    "b": 188
  },
  "hsl": {
    "h": 207.939,
    "s": 53.469,
    "l": 48.039
  },
  "oklch": {
    "l": 0.58005,
    "c": 0.11746,
    "h": 247.8
  },
  "luminance": 0.19679
}

Semantic roles & 50–950 ramp

primary

#397FBC

secondary

#C9A688

accent

#8F4BDD

background

#F8FAFC

surface

#EFF3F9

border

#CACDD2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #397FBC

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

Preview Lab → · Contrast checker → · Palette generator →