#397B9F#397B9F

#397B9F is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.6% C 0.087 H 235.2°. Best body text is #FFFFFF at 4.66:1 contrast (WCAG AA passes).

Color values

HEX	#397B9F
RGB	rgb(57, 123, 159)
HSL	hsl(201, 47%, 42%)
HSV	hsv(201, 64%, 62%)
CMYK	cmyk(64.2%, 22.6%, 0%, 37.6%)
CIE-LAB	lab(48.93, -9.52, -25.56)
CIE-LCH	lch(48.93, 27.27, 249.58°)
OKLab	oklab(55.56% -0.0497 -0.0716)
OKLCH	oklch(55.56% 0.087 235.2)
XYZ	xyz(15.0259, 17.5375, 35.3874)
Luminance	0.1754 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397B9F #9F5D39

analogous

#399F90 #397B9F #39489F

triadic

#397B9F #9F397B #7B9F39

tetradic

#397B9F #90399F #9F5D39 #489F39

square

#397B9F #90399F #9F5D39 #489F39

split-complementary

#397B9F #9F3948 #9F9039

monochromatic

#193545 #295872 #397B9F #549BC2 #81B5D2

Accessibility & contrast

On white

4.66

#397B9F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#397B9F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #397B9F

4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397B9F	#FFFFFF	#000000	##FFFFFF
##397B9F	1.00	4.66	4.51	4.66
#FFFFFF	4.66	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A7AA1

Deuteranopia (green-blind)

#5C709E

Tritanopia (blue-blind)

#008487

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #397b9f;
/* rgb */ color: rgb(57, 123, 159);
/* oklch */ color: oklch(55.6% 0.087 235.2);

Tailwind

colors: {
  custom: {
    50: '#7aa1bb',
    500: '#397b9f',
    950: '#000000',
  },
}

SCSS

$custom: #397b9f;
$custom-light: #7aa1bb;
$custom-dark: #000000;

JSON

{
  "hex": "#397b9f",
  "rgb": {
    "r": 57,
    "g": 123,
    "b": 159
  },
  "hsl": {
    "h": 201.176,
    "s": 47.222,
    "l": 42.353
  },
  "oklch": {
    "l": 0.55556,
    "c": 0.08719,
    "h": 235.2
  },
  "luminance": 0.17539
}

Semantic roles & 50–950 ramp

primary

#397B9F

secondary

#BB9078

accent

#8051D7

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #397B9F

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

Preview Lab → · Contrast checker → · Palette generator →