#397CBC#397CBC

#397CBC is a mid, vivid cyan. Relative luminance 0.189; OKLCH L 57.3% C 0.120 H 249.8°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#397CBC
RGB	rgb(57, 124, 188)
HSL	hsl(209, 53%, 48%)
HSV	hsv(209, 70%, 74%)
CMYK	cmyk(69.7%, 34%, 0%, 26.3%)
CIE-LAB	lab(50.59, -0.05, -39.77)
CIE-LCH	lch(50.59, 39.77, 269.93°)
OKLab	oklab(57.31% -0.0415 -0.1128)
OKLCH	oklch(57.31% 0.12 249.8)
XYZ	xyz(17.9687, 18.9141, 50.2710)
Luminance	0.1892 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397CBC #BC7939

analogous

#39BCBA #397CBC #393BBC

triadic

#397CBC #BC397C #7CBC39

tetradic

#397CBC #BA39BC #BC7939 #3BBC39

square

#397CBC #BA39BC #BC7939 #3BBC39

split-complementary

#397CBC #BC393B #BCBA39

monochromatic

#1D3E5E #2B5D8D #397CBC #639AD0 #92B9DE

Accessibility & contrast

On white

4.39

#397CBC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#397CBC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397CBC

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397CBC	#FFFFFF	#000000	##000000
##397CBC	1.00	4.39	4.78	4.78
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F7FBF

Deuteranopia (green-blind)

#4D73BB

Tritanopia (blue-blind)

#008B93

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #397cbc;
/* rgb */ color: rgb(57, 124, 188);
/* oklch */ color: oklch(57.3% 0.120 249.8);

Tailwind

colors: {
  custom: {
    50: '#7ea1d0',
    500: '#397cbc',
    950: '#000000',
  },
}

SCSS

$custom: #397cbc;
$custom-light: #7ea1d0;
$custom-dark: #000000;

JSON

{
  "hex": "#397cbc",
  "rgb": {
    "r": 57,
    "g": 124,
    "b": 188
  },
  "hsl": {
    "h": 209.313,
    "s": 53.469,
    "l": 48.039
  },
  "oklch": {
    "l": 0.5731,
    "c": 0.12021,
    "h": 249.8
  },
  "luminance": 0.18916
}

Semantic roles & 50–950 ramp

primary

#397CBC

secondary

#C9A888

accent

#924BDD

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #397CBC

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

Preview Lab → · Contrast checker → · Palette generator →