#397BA3#397BA3

#397BA3 is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.8% C 0.091 H 238.1°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#397BA3
RGB	rgb(57, 123, 163)
HSL	hsl(203, 48%, 43%)
HSV	hsv(203, 65%, 64%)
CMYK	cmyk(65%, 24.5%, 0%, 36.1%)
CIE-LAB	lab(49.10, -8.16, -27.62)
CIE-LCH	lch(49.10, 28.81, 253.53°)
OKLab	oklab(55.75% -0.0483 -0.0776)
OKLCH	oklch(55.75% 0.091 238.1)
XYZ	xyz(15.3786, 17.6786, 37.2451)
Luminance	0.1768 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397BA3 #A36139

analogous

#39A396 #397BA3 #3946A3

triadic

#397BA3 #A3397B #7BA339

tetradic

#397BA3 #9639A3 #A36139 #46A339

square

#397BA3 #9639A3 #A36139 #46A339

split-complementary

#397BA3 #A33946 #A39639

monochromatic

#193748 #295976 #397BA3 #559AC4 #83B5D4

Accessibility & contrast

On white

4.63

#397BA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#397BA3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #397BA3

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397BA3	#FFFFFF	#000000	##FFFFFF
##397BA3	1.00	4.63	4.54	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#687BA5

Deuteranopia (green-blind)

#5A70A2

Tritanopia (blue-blind)

#008589

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #397ba3;
/* rgb */ color: rgb(57, 123, 163);
/* oklch */ color: oklch(55.8% 0.091 238.1);

Tailwind

colors: {
  custom: {
    50: '#7aa1be',
    500: '#397ba3',
    950: '#000000',
  },
}

SCSS

$custom: #397ba3;
$custom-light: #7aa1be;
$custom-dark: #000000;

JSON

{
  "hex": "#397ba3",
  "rgb": {
    "r": 57,
    "g": 123,
    "b": 163
  },
  "hsl": {
    "h": 202.642,
    "s": 48.182,
    "l": 43.137
  },
  "oklch": {
    "l": 0.55751,
    "c": 0.09137,
    "h": 238.1
  },
  "luminance": 0.1768
}

Semantic roles & 50–950 ramp

primary

#397BA3

secondary

#BD947A

accent

#8350D8

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #397BA3

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

Preview Lab → · Contrast checker → · Palette generator →