#397C9C#397C9C

#397C9C is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.7% C 0.084 H 231.7°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#397C9C
RGB	rgb(57, 124, 156)
HSL	hsl(199, 46%, 42%)
HSV	hsv(199, 63%, 61%)
CMYK	cmyk(63.5%, 20.5%, 0%, 38.8%)
CIE-LAB	lab(49.11, -11.09, -23.53)
CIE-LCH	lch(49.11, 26.01, 244.76°)
OKLab	oklab(55.66% -0.0519 -0.0658)
OKLCH	oklch(55.66% 0.084 231.7)
XYZ	xyz(14.8934, 17.6840, 34.0745)
Luminance	0.1769 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397C9C #9C5939

analogous

#399C8B #397C9C #394B9C

triadic

#397C9C #9C397C #7C9C39

tetradic

#397C9C #8B399C #9C5939 #4B9C39

square

#397C9C #8B399C #9C5939 #4B9C39

split-complementary

#397C9C #9C394B #9C8B39

monochromatic

#183542 #29586F #397C9C #529CC0 #7FB6D0

Accessibility & contrast

On white

4.63

#397C9C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#397C9C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #397C9C

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397C9C	#FFFFFF	#000000	##FFFFFF
##397C9C	1.00	4.63	4.54	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C7A9E

Deuteranopia (green-blind)

#5E709C

Tritanopia (blue-blind)

#008587

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #397c9c;
/* rgb */ color: rgb(57, 124, 156);
/* oklch */ color: oklch(55.7% 0.084 231.7);

Tailwind

colors: {
  custom: {
    50: '#7aa2b9',
    500: '#397c9c',
    950: '#000000',
  },
}

SCSS

$custom: #397c9c;
$custom-light: #7aa2b9;
$custom-dark: #000000;

JSON

{
  "hex": "#397c9c",
  "rgb": {
    "r": 57,
    "g": 124,
    "b": 156
  },
  "hsl": {
    "h": 199.394,
    "s": 46.479,
    "l": 41.765
  },
  "oklch": {
    "l": 0.55658,
    "c": 0.08382,
    "h": 231.7
  },
  "luminance": 0.17685
}

Semantic roles & 50–950 ramp

primary

#397C9C

secondary

#BA8D77

accent

#7C52D6

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0F11

muted

#7C7E80

Preview Lab

Preview with #397C9C

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

Preview Lab → · Contrast checker → · Palette generator →