#397FB7#397FB7

#397FB7 is a mid, moderate cyan. Relative luminance 0.195; OKLCH L 57.7% C 0.111 H 245.6°. Best body text is #000000 at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#397FB7
RGB	rgb(57, 127, 183)
HSL	hsl(207, 53%, 47%)
HSV	hsv(207, 69%, 72%)
CMYK	cmyk(68.9%, 30.6%, 0%, 28.2%)
CIE-LAB	lab(51.23, -3.60, -35.89)
CIE-LCH	lch(51.23, 36.07, 264.27°)
OKLab	oklab(57.73% -0.0459 -0.1015)
OKLCH	oklch(57.73% 0.111 245.6)
XYZ	xyz(17.8207, 19.4656, 47.6086)
Luminance	0.1947 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397FB7 #B77139

analogous

#39B7B0 #397FB7 #3940B7

triadic

#397FB7 #B7397F #7FB739

tetradic

#397FB7 #B039B7 #B77139 #40B739

square

#397FB7 #B039B7 #B77139 #40B739

split-complementary

#397FB7 #B73940 #B7B039

monochromatic

#1C3E5A #2A5F88 #397FB7 #609DCD #8EBADC

Accessibility & contrast

On white

4.29

#397FB7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.89

#397FB7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397FB7

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397FB7	#FFFFFF	#000000	##000000
##397FB7	1.00	4.29	4.89	4.89
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.89	21.00	1.00	1.00
##000000	4.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6681B9

Deuteranopia (green-blind)

#5475B6

Tritanopia (blue-blind)

#008C93

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #397fb7;
/* rgb */ color: rgb(57, 127, 183);
/* oklch */ color: oklch(57.7% 0.111 245.6);

Tailwind

colors: {
  custom: {
    50: '#7ea3cd',
    500: '#397fb7',
    950: '#000000',
  },
}

SCSS

$custom: #397fb7;
$custom-light: #7ea3cd;
$custom-dark: #000000;

JSON

{
  "hex": "#397fb7",
  "rgb": {
    "r": 57,
    "g": 127,
    "b": 183
  },
  "hsl": {
    "h": 206.667,
    "s": 52.5,
    "l": 47.059
  },
  "oklch": {
    "l": 0.57734,
    "c": 0.11139,
    "h": 245.6
  },
  "luminance": 0.19467
}

Semantic roles & 50–950 ramp

primary

#397FB7

secondary

#C7A285

accent

#8C4CDC

background

#F8FAFC

surface

#EFF3F9

border

#CACDD2

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #397FB7

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

Preview Lab → · Contrast checker → · Palette generator →