#397BA5#397BA5

#397BA5 is a mid, moderate cyan. Relative luminance 0.178; OKLCH L 55.9% C 0.094 H 239.4°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#397BA5
RGB	rgb(57, 123, 165)
HSL	hsl(203, 49%, 44%)
HSV	hsv(203, 65%, 65%)
CMYK	cmyk(65.5%, 25.5%, 0%, 35.3%)
CIE-LAB	lab(49.19, -7.48, -28.65)
CIE-LCH	lch(49.19, 29.61, 255.36°)
OKLab	oklab(55.85% -0.0476 -0.0805)
OKLCH	oklch(55.85% 0.094 239.4)
XYZ	xyz(15.5592, 17.7508, 38.1963)
Luminance	0.1775 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397BA5 #A56339

analogous

#39A599 #397BA5 #3945A5

triadic

#397BA5 #A5397B #7BA539

tetradic

#397BA5 #9939A5 #A56339 #45A539

square

#397BA5 #9939A5 #A56339 #45A539

split-complementary

#397BA5 #A53945 #A59939

monochromatic

#1A374A #295978 #397BA5 #569AC5 #84B5D4

Accessibility & contrast

On white

4.61

#397BA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#397BA5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #397BA5

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397BA5	#FFFFFF	#000000	##FFFFFF
##397BA5	1.00	4.61	4.55	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#687BA7

Deuteranopia (green-blind)

#5970A4

Tritanopia (blue-blind)

#008689

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #397ba5;
/* rgb */ color: rgb(57, 123, 165);
/* oklch */ color: oklch(55.9% 0.094 239.4);

Tailwind

colors: {
  custom: {
    50: '#7ba1c0',
    500: '#397ba5',
    950: '#000000',
  },
}

SCSS

$custom: #397ba5;
$custom-light: #7ba1c0;
$custom-dark: #000000;

JSON

{
  "hex": "#397ba5",
  "rgb": {
    "r": 57,
    "g": 123,
    "b": 165
  },
  "hsl": {
    "h": 203.333,
    "s": 48.649,
    "l": 43.529
  },
  "oklch": {
    "l": 0.55851,
    "c": 0.09355,
    "h": 239.4
  },
  "luminance": 0.17752
}

Semantic roles & 50–950 ramp

primary

#397BA5

secondary

#BE957B

accent

#8550D8

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #397BA5

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

Preview Lab → · Contrast checker → · Palette generator →