#397B9E#397B9E

#397B9E is a mid, moderate cyan. Relative luminance 0.175; OKLCH L 55.5% C 0.086 H 234.5°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#397B9E
RGB	rgb(57, 123, 158)
HSL	hsl(201, 47%, 42%)
HSV	hsv(201, 64%, 62%)
CMYK	cmyk(63.9%, 22.2%, 0%, 38%)
CIE-LAB	lab(48.89, -9.85, -25.04)
CIE-LCH	lch(48.89, 26.91, 248.53°)
OKLab	oklab(55.51% -0.0501 -0.0701)
OKLCH	oklch(55.51% 0.086 234.5)
XYZ	xyz(14.9395, 17.5029, 34.9322)
Luminance	0.1750 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397B9E #9E5C39

analogous

#399E8F #397B9E #39499E

triadic

#397B9E #9E397B #7B9E39

tetradic

#397B9E #8F399E #9E5C39 #499E39

square

#397B9E #8F399E #9E5C39 #499E39

split-complementary

#397B9E #9E3949 #9E8F39

monochromatic

#193544 #295871 #397B9E #539BC1 #80B5D1

Accessibility & contrast

On white

4.67

#397B9E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#397B9E on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #397B9E

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397B9E	#FFFFFF	#000000	##FFFFFF
##397B9E	1.00	4.67	4.50	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A7AA0

Deuteranopia (green-blind)

#5C709D

Tritanopia (blue-blind)

#008487

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #397b9e;
/* rgb */ color: rgb(57, 123, 158);
/* oklch */ color: oklch(55.5% 0.086 234.5);

Tailwind

colors: {
  custom: {
    50: '#7aa1ba',
    500: '#397b9e',
    950: '#000000',
  },
}

SCSS

$custom: #397b9e;
$custom-light: #7aa1ba;
$custom-dark: #000000;

JSON

{
  "hex": "#397b9e",
  "rgb": {
    "r": 57,
    "g": 123,
    "b": 158
  },
  "hsl": {
    "h": 200.792,
    "s": 46.977,
    "l": 42.157
  },
  "oklch": {
    "l": 0.55508,
    "c": 0.08618,
    "h": 234.5
  },
  "luminance": 0.17504
}

Semantic roles & 50–950 ramp

primary

#397B9E

secondary

#BB8F78

accent

#7F51D7

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E11

muted

#7C7E80

Preview Lab

Preview with #397B9E

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

Preview Lab → · Contrast checker → · Palette generator →