#397FDE#397FDE

#397FDE is a mid, vivid cyan. Relative luminance 0.213; OKLCH L 60.0% C 0.161 H 257.0°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).

Color values

HEX	#397FDE
RGB	rgb(57, 127, 222)
HSL	hsl(215, 71%, 55%)
HSV	hsv(215, 74%, 87%)
CMYK	cmyk(74.3%, 42.8%, 0%, 12.9%)
CIE-LAB	lab(53.30, 10.41, -54.78)
CIE-LCH	lch(53.30, 55.76, 280.76°)
OKLab	oklab(60.03% -0.0362 -0.1568)
OKLCH	oklch(60.03% 0.161 257)
XYZ	xyz(22.4567, 21.3200, 72.0247)
Luminance	0.2132 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397FDE #DE9839

analogous

#39D2DE #397FDE #4539DE

triadic

#397FDE #DE397F #7FDE39

tetradic

#397FDE #DE39D2 #DE9839 #39DE45

square

#397FDE #DE39D2 #DE9839 #39DE45

split-complementary

#397FDE #DE4539 #D2DE39

monochromatic

#164686 #1F61BB #397FDE #6DA1E7 #A2C3EF

Accessibility & contrast

On white

3.99

#397FDE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.26

#397FDE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397FDE

5.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397FDE	#FFFFFF	#000000	##000000
##397FDE	1.00	3.99	5.26	5.26
#FFFFFF	3.99	1.00	21.00	21.00
#000000	5.26	21.00	1.00	1.00
##000000	5.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5087E2

Deuteranopia (green-blind)

#3178DC

Tritanopia (blue-blind)

#0095A4

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #397fde;
/* rgb */ color: rgb(57, 127, 222);
/* oklch */ color: oklch(60.0% 0.161 257.0);

Tailwind

colors: {
  custom: {
    50: '#85a3e9',
    500: '#397fde',
    950: '#000000',
  },
}

SCSS

$custom: #397fde;
$custom-light: #85a3e9;
$custom-dark: #000000;

JSON

{
  "hex": "#397fde",
  "rgb": {
    "r": 57,
    "g": 127,
    "b": 222
  },
  "hsl": {
    "h": 214.545,
    "s": 71.429,
    "l": 54.706
  },
  "oklch": {
    "l": 0.60026,
    "c": 0.1609,
    "h": 257
  },
  "luminance": 0.21323
}

Semantic roles & 50–950 ramp

primary

#397FDE

secondary

#DCBF97

accent

#A23AEE

background

#F8FAFE

surface

#F0F3FD

border

#CBCDD5

text

#0D0F16

muted

#7D7F84

Preview Lab

Preview with #397FDE

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

Preview Lab → · Contrast checker → · Palette generator →