#397FDA#397FDA

#397FDA is a mid, vivid cyan. Relative luminance 0.211; OKLCH L 59.8% C 0.156 H 256.3°. Best body text is #000000 at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#397FDA
RGB	rgb(57, 127, 218)
HSL	hsl(214, 69%, 54%)
HSV	hsv(214, 74%, 85%)
CMYK	cmyk(73.9%, 41.7%, 0%, 14.5%)
CIE-LAB	lab(53.07, 8.95, -52.90)
CIE-LCH	lch(53.07, 53.65, 279.60°)
OKLab	oklab(59.77% -0.037 -0.1512)
OKLCH	oklch(59.77% 0.156 256.3)
XYZ	xyz(21.9269, 21.1081, 69.2347)
Luminance	0.2111 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397FDA #DA9439

analogous

#39D0DA #397FDA #4439DA

triadic

#397FDA #DA397F #7FDA39

tetradic

#397FDA #DA39D0 #DA9439 #39DA44

square

#397FDA #DA39D0 #DA9439 #39DA44

split-complementary

#397FDA #DA4439 #D0DA39

monochromatic

#184581 #2261B4 #397FDA #6DA0E4 #A0C2ED

Accessibility & contrast

On white

4.02

#397FDA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.22

#397FDA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397FDA

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397FDA	#FFFFFF	#000000	##000000
##397FDA	1.00	4.02	5.22	5.22
#FFFFFF	4.02	1.00	21.00	21.00
#000000	5.22	21.00	1.00	1.00
##000000	5.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5387DE

Deuteranopia (green-blind)

#3778D8

Tritanopia (blue-blind)

#0094A2

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #397fda;
/* rgb */ color: rgb(57, 127, 218);
/* oklch */ color: oklch(59.8% 0.156 256.3);

Tailwind

colors: {
  custom: {
    50: '#84a3e6',
    500: '#397fda',
    950: '#000000',
  },
}

SCSS

$custom: #397fda;
$custom-light: #84a3e6;
$custom-dark: #000000;

JSON

{
  "hex": "#397fda",
  "rgb": {
    "r": 57,
    "g": 127,
    "b": 218
  },
  "hsl": {
    "h": 213.913,
    "s": 68.511,
    "l": 53.922
  },
  "oklch": {
    "l": 0.59773,
    "c": 0.15571,
    "h": 256.3
  },
  "luminance": 0.21111
}

Semantic roles & 50–950 ramp

primary

#397FDA

secondary

#DABC95

accent

#9F3CEB

background

#F8FAFE

surface

#F0F3FC

border

#CBCDD5

text

#0C0F16

muted

#7D7F84

Preview Lab

Preview with #397FDA

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

Preview Lab → · Contrast checker → · Palette generator →