#397BF2#397BF2

#397BF2 is a mid, vivid blue. Relative luminance 0.214; OKLCH L 60.5% C 0.191 H 261.1°. Best body text is #000000 at 5.29:1 contrast (WCAG AA passes).

Color values

HEX	#397BF2
RGB	rgb(57, 123, 242)
HSL	hsl(219, 88%, 59%)
HSV	hsv(219, 76%, 95%)
CMYK	cmyk(76.4%, 49.2%, 0%, 5.1%)
CIE-LAB	lab(53.43, 20.19, -65.75)
CIE-LCH	lch(53.43, 68.78, 287.07°)
OKLab	oklab(60.52% -0.0298 -0.1891)
OKLCH	oklch(60.52% 0.191 261.1)
XYZ	xyz(24.7915, 21.4437, 86.8196)
Luminance	0.2145 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397BF2 #F2B039

analogous

#39D7F2 #397BF2 #5339F2

triadic

#397BF2 #F2397B #7BF239

tetradic

#397BF2 #F239D7 #F2B039 #39F253

square

#397BF2 #F239D7 #F2B039 #39F253

split-complementary

#397BF2 #F25339 #D7F239

monochromatic

#0B42A6 #0F59DF #397BF2 #72A1F6 #ACC8FA

Accessibility & contrast

On white

3.97

#397BF2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.29

#397BF2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397BF2

5.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397BF2	#FFFFFF	#000000	##000000
##397BF2	1.00	3.97	5.29	5.29
#FFFFFF	3.97	1.00	21.00	21.00
#000000	5.29	21.00	1.00	1.00
##000000	5.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3389F6

Deuteranopia (green-blind)

#0078F0

Tritanopia (blue-blind)

#0098AB

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #397bf2;
/* rgb */ color: rgb(57, 123, 242);
/* oklch */ color: oklch(60.5% 0.191 261.1);

Tailwind

colors: {
  custom: {
    50: '#89a0f7',
    500: '#397bf2',
    950: '#000000',
  },
}

SCSS

$custom: #397bf2;
$custom-light: #89a0f7;
$custom-dark: #000000;

JSON

{
  "hex": "#397bf2",
  "rgb": {
    "r": 57,
    "g": 123,
    "b": 242
  },
  "hsl": {
    "h": 218.595,
    "s": 87.678,
    "l": 58.627
  },
  "oklch": {
    "l": 0.60524,
    "c": 0.19145,
    "h": 261.1
  },
  "luminance": 0.21447
}

Semantic roles & 50–950 ramp

primary

#397BF2

secondary

#E8CE9F

accent

#B22AFE

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0D0E17

muted

#7E7E85

Preview Lab

Preview with #397BF2

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

Preview Lab → · Contrast checker → · Palette generator →