#397DAA#397DAA

#397DAA is a mid, moderate cyan. Relative luminance 0.184; OKLCH L 56.6% C 0.098 H 240.6°. Best body text is #000000 at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#397DAA
RGB	rgb(57, 125, 170)
HSL	hsl(204, 50%, 45%)
HSV	hsv(204, 66%, 67%)
CMYK	cmyk(66.5%, 26.5%, 0%, 33.3%)
CIE-LAB	lab(50.02, -6.94, -30.27)
CIE-LCH	lch(50.02, 31.05, 257.09°)
OKLab	oklab(56.58% -0.048 -0.0852)
OKLCH	oklch(56.58% 0.098 240.6)
XYZ	xyz(16.2739, 18.4377, 40.7236)
Luminance	0.1844 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397DAA #AA6639

analogous

#39AA9F #397DAA #3944AA

triadic

#397DAA #AA397D #7DAA39

tetradic

#397DAA #9F39AA #AA6639 #44AA39

square

#397DAA #9F39AA #AA6639 #44AA39

split-complementary

#397DAA #AA3944 #AA9F39

monochromatic

#1A3A4E #2A5B7C #397DAA #599BC7 #87B7D7

Accessibility & contrast

On white

4.48

#397DAA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.69

#397DAA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397DAA

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397DAA	#FFFFFF	#000000	##000000
##397DAA	1.00	4.48	4.69	4.69
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.69	21.00	1.00	1.00
##000000	4.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#687DAC

Deuteranopia (green-blind)

#5972A9

Tritanopia (blue-blind)

#00888C

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #397daa;
/* rgb */ color: rgb(57, 125, 170);
/* oklch */ color: oklch(56.6% 0.098 240.6);

Tailwind

colors: {
  custom: {
    50: '#7ca2c3',
    500: '#397daa',
    950: '#000000',
  },
}

SCSS

$custom: #397daa;
$custom-light: #7ca2c3;
$custom-dark: #000000;

JSON

{
  "hex": "#397daa",
  "rgb": {
    "r": 57,
    "g": 125,
    "b": 170
  },
  "hsl": {
    "h": 203.894,
    "s": 49.78,
    "l": 44.51
  },
  "oklch": {
    "l": 0.56583,
    "c": 0.09779,
    "h": 240.6
  },
  "luminance": 0.18439
}

Semantic roles & 50–950 ramp

primary

#397DAA

secondary

#C1997E

accent

#864ED9

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0F12

muted

#7C7E81

Preview Lab

Preview with #397DAA

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

Preview Lab → · Contrast checker → · Palette generator →