#397AA3#397AA3

#397AA3 is a mid, moderate cyan. Relative luminance 0.174; OKLCH L 55.5% C 0.092 H 239.1°. Best body text is #FFFFFF at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#397AA3
RGB	rgb(57, 122, 163)
HSL	hsl(203, 48%, 43%)
HSV	hsv(203, 65%, 64%)
CMYK	cmyk(65%, 25.2%, 0%, 36.1%)
CIE-LAB	lab(48.80, -7.58, -28.10)
CIE-LCH	lch(48.80, 29.10, 254.90°)
OKLab	oklab(55.51% -0.0472 -0.0789)
OKLCH	oklch(55.51% 0.092 239.1)
XYZ	xyz(15.2552, 17.4317, 37.2039)
Luminance	0.1743 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397AA3 #A36239

analogous

#39A397 #397AA3 #3945A3

triadic

#397AA3 #A3397A #7AA339

tetradic

#397AA3 #9739A3 #A36239 #45A339

square

#397AA3 #9739A3 #A36239 #45A339

split-complementary

#397AA3 #A33945 #A39739

monochromatic

#193648 #295876 #397AA3 #5599C4 #83B4D4

Accessibility & contrast

On white

4.68

#397AA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.49

#397AA3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #397AA3

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397AA3	#FFFFFF	#000000	##FFFFFF
##397AA3	1.00	4.68	4.49	4.68
#FFFFFF	4.68	1.00	21.00	1.00
#000000	4.49	21.00	1.00	21.00
##FFFFFF	4.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#677AA5

Deuteranopia (green-blind)

#596FA2

Tritanopia (blue-blind)

#008488

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #397aa3;
/* rgb */ color: rgb(57, 122, 163);
/* oklch */ color: oklch(55.5% 0.092 239.1);

Tailwind

colors: {
  custom: {
    50: '#7aa0be',
    500: '#397aa3',
    950: '#000000',
  },
}

SCSS

$custom: #397aa3;
$custom-light: #7aa0be;
$custom-dark: #000000;

JSON

{
  "hex": "#397aa3",
  "rgb": {
    "r": 57,
    "g": 122,
    "b": 163
  },
  "hsl": {
    "h": 203.208,
    "s": 48.182,
    "l": 43.137
  },
  "oklch": {
    "l": 0.5551,
    "c": 0.09197,
    "h": 239.1
  },
  "luminance": 0.17433
}

Semantic roles & 50–950 ramp

primary

#397AA3

secondary

#BD947A

accent

#8550D8

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #397AA3

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

Preview Lab → · Contrast checker → · Palette generator →