#397DF2#397DF2

#397DF2 is a mid, vivid blue. Relative luminance 0.219; OKLCH L 60.9% C 0.189 H 260.5°. Best body text is #000000 at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#397DF2
RGB	rgb(57, 125, 242)
HSL	hsl(218, 88%, 59%)
HSV	hsv(218, 76%, 95%)
CMYK	cmyk(76.4%, 48.3%, 0%, 5.1%)
CIE-LAB	lab(53.97, 18.95, -64.88)
CIE-LCH	lch(53.97, 67.59, 286.28°)
OKLab	oklab(60.93% -0.0313 -0.1865)
OKLCH	oklch(60.93% 0.189 260.5)
XYZ	xyz(25.0422, 21.9450, 86.9032)
Luminance	0.2195 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397DF2 #F2AE39

analogous

#39D9F2 #397DF2 #5139F2

triadic

#397DF2 #F2397D #7DF239

tetradic

#397DF2 #F239D9 #F2AE39 #39F251

square

#397DF2 #F239D9 #F2AE39 #39F251

split-complementary

#397DF2 #F25139 #D9F239

monochromatic

#0B44A6 #0F5BDF #397DF2 #72A3F6 #ACC8FA

Accessibility & contrast

On white

3.90

#397DF2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.39

#397DF2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397DF2

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397DF2	#FFFFFF	#000000	##000000
##397DF2	1.00	3.90	5.39	5.39
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.39	21.00	1.00	1.00
##000000	5.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#388AF6

Deuteranopia (green-blind)

#0079F0

Tritanopia (blue-blind)

#0099AC

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #397df2;
/* rgb */ color: rgb(57, 125, 242);
/* oklch */ color: oklch(60.9% 0.189 260.5);

Tailwind

colors: {
  custom: {
    50: '#89a1f7',
    500: '#397df2',
    950: '#000000',
  },
}

SCSS

$custom: #397df2;
$custom-light: #89a1f7;
$custom-dark: #000000;

JSON

{
  "hex": "#397df2",
  "rgb": {
    "r": 57,
    "g": 125,
    "b": 242
  },
  "hsl": {
    "h": 217.946,
    "s": 87.678,
    "l": 58.627
  },
  "oklch": {
    "l": 0.60935,
    "c": 0.18913,
    "h": 260.5
  },
  "luminance": 0.21948
}

Semantic roles & 50–950 ramp

primary

#397DF2

secondary

#E8CD9F

accent

#B02AFE

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0D0E17

muted

#7E7E85

Preview Lab

Preview with #397DF2

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

Preview Lab → · Contrast checker → · Palette generator →