#397CDE#397CDE

#397CDE is a mid, vivid blue. Relative luminance 0.206; OKLCH L 59.4% C 0.164 H 258.2°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#397CDE
RGB	rgb(57, 124, 222)
HSL	hsl(216, 71%, 55%)
HSV	hsv(216, 74%, 87%)
CMYK	cmyk(74.3%, 44.1%, 0%, 12.9%)
CIE-LAB	lab(52.46, 12.25, -56.12)
CIE-LCH	lch(52.46, 57.45, 282.32°)
OKLab	oklab(59.38% -0.0337 -0.1608)
OKLCH	oklch(59.38% 0.164 258.2)
XYZ	xyz(22.0750, 20.5566, 71.8975)
Luminance	0.2056 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397CDE #DE9B39

analogous

#39CFDE #397CDE #4839DE

triadic

#397CDE #DE397C #7CDE39

tetradic

#397CDE #DE39CF #DE9B39 #39DE48

square

#397CDE #DE39CF #DE9B39 #39DE48

split-complementary

#397CDE #DE4839 #CFDE39

monochromatic

#164486 #1F5EBB #397CDE #6D9FE7 #A2C1EF

Accessibility & contrast

On white

4.11

#397CDE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#397CDE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397CDE

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397CDE	#FFFFFF	#000000	##000000
##397CDE	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A85E2

Deuteranopia (green-blind)

#2976DC

Tritanopia (blue-blind)

#0093A2

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #397cde;
/* rgb */ color: rgb(57, 124, 222);
/* oklch */ color: oklch(59.4% 0.164 258.2);

Tailwind

colors: {
  custom: {
    50: '#85a1e9',
    500: '#397cde',
    950: '#000000',
  },
}

SCSS

$custom: #397cde;
$custom-light: #85a1e9;
$custom-dark: #000000;

JSON

{
  "hex": "#397cde",
  "rgb": {
    "r": 57,
    "g": 124,
    "b": 222
  },
  "hsl": {
    "h": 215.636,
    "s": 71.429,
    "l": 54.706
  },
  "oklch": {
    "l": 0.59379,
    "c": 0.16427,
    "h": 258.2
  },
  "luminance": 0.20559
}

Semantic roles & 50–950 ramp

primary

#397CDE

secondary

#DCC097

accent

#A53AEE

background

#F8F9FE

surface

#F0F2FD

border

#CBCCD5

text

#0D0E16

muted

#7D7E84

Preview Lab

Preview with #397CDE

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

Preview Lab → · Contrast checker → · Palette generator →