#397BA4#397BA4

#397BA4 is a mid, moderate cyan. Relative luminance 0.177; OKLCH L 55.8% C 0.092 H 238.8°. Best body text is #FFFFFF at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#397BA4
RGB	rgb(57, 123, 164)
HSL	hsl(203, 48%, 43%)
HSV	hsv(203, 65%, 64%)
CMYK	cmyk(65.2%, 25%, 0%, 35.7%)
CIE-LAB	lab(49.15, -7.82, -28.14)
CIE-LCH	lch(49.15, 29.21, 254.46°)
OKLab	oklab(55.8% -0.0479 -0.0791)
OKLCH	oklch(55.8% 0.092 238.8)
XYZ	xyz(15.4686, 17.7145, 37.7188)
Luminance	0.1772 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397BA4 #A46239

analogous

#39A497 #397BA4 #3945A4

triadic

#397BA4 #A4397B #7BA439

tetradic

#397BA4 #9739A4 #A46239 #45A439

square

#397BA4 #9739A4 #A46239 #45A439

split-complementary

#397BA4 #A43945 #A49739

monochromatic

#193749 #295977 #397BA4 #569AC4 #83B5D4

Accessibility & contrast

On white

4.62

#397BA4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#397BA4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #397BA4

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397BA4	#FFFFFF	#000000	##FFFFFF
##397BA4	1.00	4.62	4.54	4.62
#FFFFFF	4.62	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#687BA6

Deuteranopia (green-blind)

#5970A3

Tritanopia (blue-blind)

#008589

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #397ba4;
/* rgb */ color: rgb(57, 123, 164);
/* oklch */ color: oklch(55.8% 0.092 238.8);

Tailwind

colors: {
  custom: {
    50: '#7ba1bf',
    500: '#397ba4',
    950: '#000000',
  },
}

SCSS

$custom: #397ba4;
$custom-light: #7ba1bf;
$custom-dark: #000000;

JSON

{
  "hex": "#397ba4",
  "rgb": {
    "r": 57,
    "g": 123,
    "b": 164
  },
  "hsl": {
    "h": 202.991,
    "s": 48.416,
    "l": 43.333
  },
  "oklch": {
    "l": 0.55801,
    "c": 0.09246,
    "h": 238.8
  },
  "luminance": 0.17716
}

Semantic roles & 50–950 ramp

primary

#397BA4

secondary

#BE957B

accent

#8450D8

background

#F7F9FB

surface

#EEF2F7

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #397BA4

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

Preview Lab → · Contrast checker → · Palette generator →