#397B91#397B91

#397B91 is a mid, moderate cyan. Relative luminance 0.171; OKLCH L 54.9% C 0.075 H 222.6°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#397B91
RGB	rgb(57, 123, 145)
HSL	hsl(195, 44%, 40%)
HSV	hsv(195, 61%, 57%)
CMYK	cmyk(60.7%, 15.2%, 0%, 43.1%)
CIE-LAB	lab(48.36, -14.11, -18.23)
CIE-LCH	lch(48.36, 23.05, 232.25°)
OKLab	oklab(54.91% -0.0551 -0.0507)
OKLCH	oklch(54.91% 0.075 222.6)
XYZ	xyz(13.8791, 17.0788, 29.3477)
Luminance	0.1708 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397B91 #914F39

analogous

#39917B #397B91 #394F91

triadic

#397B91 #91397B #7B9139

tetradic

#397B91 #7B3991 #914F39 #4F9139

square

#397B91 #7B3991 #914F39 #4F9139

split-complementary

#397B91 #91394F #917B39

monochromatic

#163039 #285665 #397B91 #4E9EB9 #7AB6CB

Accessibility & contrast

On white

4.76

#397B91 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.42

#397B91 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #397B91

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397B91	#FFFFFF	#000000	##FFFFFF
##397B91	1.00	4.76	4.42	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.42	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E7892

Deuteranopia (green-blind)

#626F91

Tritanopia (blue-blind)

#008282

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #397b91;
/* rgb */ color: rgb(57, 123, 145);
/* oklch */ color: oklch(54.9% 0.075 222.6);

Tailwind

colors: {
  custom: {
    50: '#78a1b1',
    500: '#397b91',
    950: '#000000',
  },
}

SCSS

$custom: #397b91;
$custom-light: #78a1b1;
$custom-dark: #000000;

JSON

{
  "hex": "#397b91",
  "rgb": {
    "r": 57,
    "g": 123,
    "b": 145
  },
  "hsl": {
    "h": 195,
    "s": 43.564,
    "l": 39.608
  },
  "oklch": {
    "l": 0.54912,
    "c": 0.07487,
    "h": 222.6
  },
  "luminance": 0.1708
}

Semantic roles & 50–950 ramp

primary

#397B91

secondary

#B48272

accent

#7454D3

background

#F7F9FA

surface

#EEF2F5

border

#C9CCCF

text

#090F10

muted

#7B7E7F

Preview Lab

Preview with #397B91

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

Preview Lab → · Contrast checker → · Palette generator →