#397FAF#397FAF

#397FAF is a mid, moderate cyan. Relative luminance 0.191; OKLCH L 57.3% C 0.102 H 241.6°. Best body text is #000000 at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#397FAF
RGB	rgb(57, 127, 175)
HSL	hsl(204, 51%, 45%)
HSV	hsv(204, 67%, 69%)
CMYK	cmyk(67.4%, 27.4%, 0%, 31.4%)
CIE-LAB	lab(50.85, -6.38, -31.87)
CIE-LCH	lch(50.85, 32.50, 258.67°)
OKLab	oklab(57.32% -0.0485 -0.0898)
OKLCH	oklch(57.32% 0.102 241.6)
XYZ	xyz(17.0116, 19.1420, 43.3474)
Luminance	0.1914 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397FAF #AF6939

analogous

#39AFA4 #397FAF #3944AF

triadic

#397FAF #AF397F #7FAF39

tetradic

#397FAF #A439AF #AF6939 #44AF39

square

#397FAF #A439AF #AF6939 #44AF39

split-complementary

#397FAF #AF3944 #AFA439

monochromatic

#1B3C53 #2A5D81 #397FAF #5B9DCA #8AB9D9

Accessibility & contrast

On white

4.35

#397FAF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.83

#397FAF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397FAF

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397FAF	#FFFFFF	#000000	##000000
##397FAF	1.00	4.35	4.83	4.83
#FFFFFF	4.35	1.00	21.00	21.00
#000000	4.83	21.00	1.00	1.00
##000000	4.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6980B1

Deuteranopia (green-blind)

#5974AE

Tritanopia (blue-blind)

#008B90

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #397faf;
/* rgb */ color: rgb(57, 127, 175);
/* oklch */ color: oklch(57.3% 0.102 241.6);

Tailwind

colors: {
  custom: {
    50: '#7ca4c7',
    500: '#397faf',
    950: '#000000',
  },
}

SCSS

$custom: #397faf;
$custom-light: #7ca4c7;
$custom-dark: #000000;

JSON

{
  "hex": "#397faf",
  "rgb": {
    "r": 57,
    "g": 127,
    "b": 175
  },
  "hsl": {
    "h": 204.407,
    "s": 50.862,
    "l": 45.49
  },
  "oklch": {
    "l": 0.57315,
    "c": 0.10205,
    "h": 241.6
  },
  "luminance": 0.19144
}

Semantic roles & 50–950 ramp

primary

#397FAF

secondary

#C39C81

accent

#874DDA

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #397FAF

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

Preview Lab → · Contrast checker → · Palette generator →