#397FAE#397FAE

#397FAE is a mid, moderate cyan. Relative luminance 0.191; OKLCH L 57.3% C 0.101 H 241.1°. Best body text is #000000 at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#397FAE
RGB	rgb(57, 127, 174)
HSL	hsl(204, 51%, 45%)
HSV	hsv(204, 67%, 68%)
CMYK	cmyk(67.2%, 27%, 0%, 31.8%)
CIE-LAB	lab(50.81, -6.73, -31.36)
CIE-LCH	lch(50.81, 32.07, 257.89°)
OKLab	oklab(57.26% -0.0488 -0.0883)
OKLCH	oklch(57.26% 0.101 241.1)
XYZ	xyz(16.9138, 19.1028, 42.8320)
Luminance	0.1910 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397FAE #AE6839

analogous

#39AEA3 #397FAE #3944AE

triadic

#397FAE #AE397F #7FAE39

tetradic

#397FAE #A339AE #AE6839 #44AE39

square

#397FAE #A339AE #AE6839 #44AE39

split-complementary

#397FAE #AE3944 #AEA339

monochromatic

#1B3C52 #2A5D80 #397FAE #5B9DC9 #89B8D8

Accessibility & contrast

On white

4.36

#397FAE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.82

#397FAE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397FAE

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397FAE	#FFFFFF	#000000	##000000
##397FAE	1.00	4.36	4.82	4.82
#FFFFFF	4.36	1.00	21.00	21.00
#000000	4.82	21.00	1.00	1.00
##000000	4.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A7FB0

Deuteranopia (green-blind)

#5A74AD

Tritanopia (blue-blind)

#008B8F

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #397fae;
/* rgb */ color: rgb(57, 127, 174);
/* oklch */ color: oklch(57.3% 0.101 241.1);

Tailwind

colors: {
  custom: {
    50: '#7ca4c6',
    500: '#397fae',
    950: '#000000',
  },
}

SCSS

$custom: #397fae;
$custom-light: #7ca4c6;
$custom-dark: #000000;

JSON

{
  "hex": "#397fae",
  "rgb": {
    "r": 57,
    "g": 127,
    "b": 174
  },
  "hsl": {
    "h": 204.103,
    "s": 50.649,
    "l": 45.294
  },
  "oklch": {
    "l": 0.57264,
    "c": 0.10092,
    "h": 241.1
  },
  "luminance": 0.19105
}

Semantic roles & 50–950 ramp

primary

#397FAE

secondary

#C39B80

accent

#864EDA

background

#F8FAFC

surface

#EFF3F8

border

#CACDD1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #397FAE

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

Preview Lab → · Contrast checker → · Palette generator →