#397EB7#397EB7

#397EB7 is a mid, moderate cyan. Relative luminance 0.192; OKLCH L 57.5% C 0.112 H 246.4°. Best body text is #000000 at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#397EB7
RGB	rgb(57, 126, 183)
HSL	hsl(207, 53%, 47%)
HSV	hsv(207, 69%, 72%)
CMYK	cmyk(68.9%, 31.1%, 0%, 28.2%)
CIE-LAB	lab(50.93, -3.01, -36.36)
CIE-LCH	lch(50.93, 36.48, 265.27°)
OKLab	oklab(57.5% -0.0449 -0.1028)
OKLCH	oklch(57.5% 0.112 246.4)
XYZ	xyz(17.6922, 19.2086, 47.5658)
Luminance	0.1921 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397EB7 #B77239

analogous

#39B7B1 #397EB7 #393FB7

triadic

#397EB7 #B7397E #7EB739

tetradic

#397EB7 #B139B7 #B77239 #3FB739

square

#397EB7 #B139B7 #B77239 #3FB739

split-complementary

#397EB7 #B7393F #B7B139

monochromatic

#1C3E5A #2A5E88 #397EB7 #609CCD #8EB9DC

Accessibility & contrast

On white

4.34

#397EB7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.84

#397EB7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397EB7

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397EB7	#FFFFFF	#000000	##000000
##397EB7	1.00	4.34	4.84	4.84
#FFFFFF	4.34	1.00	21.00	21.00
#000000	4.84	21.00	1.00	1.00
##000000	4.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6580B9

Deuteranopia (green-blind)

#5374B6

Tritanopia (blue-blind)

#008C92

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #397eb7;
/* rgb */ color: rgb(57, 126, 183);
/* oklch */ color: oklch(57.5% 0.112 246.4);

Tailwind

colors: {
  custom: {
    50: '#7ea3cd',
    500: '#397eb7',
    950: '#000000',
  },
}

SCSS

$custom: #397eb7;
$custom-light: #7ea3cd;
$custom-dark: #000000;

JSON

{
  "hex": "#397eb7",
  "rgb": {
    "r": 57,
    "g": 126,
    "b": 183
  },
  "hsl": {
    "h": 207.143,
    "s": 52.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.575,
    "c": 0.11224,
    "h": 246.4
  },
  "luminance": 0.1921
}

Semantic roles & 50–950 ramp

primary

#397EB7

secondary

#C7A385

accent

#8D4CDC

background

#F8FAFC

surface

#EFF3F9

border

#CACDD2

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #397EB7

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

Preview Lab → · Contrast checker → · Palette generator →