#397AF2#397AF2

#397AF2 is a mid, vivid blue. Relative luminance 0.212; OKLCH L 60.3% C 0.193 H 261.3°. Best body text is #000000 at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#397AF2
RGB	rgb(57, 122, 242)
HSL	hsl(219, 88%, 59%)
HSV	hsv(219, 76%, 95%)
CMYK	cmyk(76.4%, 49.6%, 0%, 5.1%)
CIE-LAB	lab(53.16, 20.81, -66.18)
CIE-LCH	lch(53.16, 69.38, 287.46°)
OKLab	oklab(60.32% -0.029 -0.1904)
OKLCH	oklch(60.32% 0.193 261.3)
XYZ	xyz(24.6681, 21.1969, 86.7785)
Luminance	0.2120 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397AF2 #F2B139

analogous

#39D6F2 #397AF2 #5439F2

triadic

#397AF2 #F2397A #7AF239

tetradic

#397AF2 #F239D6 #F2B139 #39F254

square

#397AF2 #F239D6 #F2B139 #39F254

split-complementary

#397AF2 #F25439 #D6F239

monochromatic

#0B41A6 #0F58DF #397AF2 #72A1F6 #ACC7FA

Accessibility & contrast

On white

4.01

#397AF2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.24

#397AF2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397AF2

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397AF2	#FFFFFF	#000000	##000000
##397AF2	1.00	4.01	5.24	5.24
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.24	21.00	1.00	1.00
##000000	5.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3088F6

Deuteranopia (green-blind)

#0077F0

Tritanopia (blue-blind)

#0097AA

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #397af2;
/* rgb */ color: rgb(57, 122, 242);
/* oklch */ color: oklch(60.3% 0.193 261.3);

Tailwind

colors: {
  custom: {
    50: '#899ff7',
    500: '#397af2',
    950: '#000000',
  },
}

SCSS

$custom: #397af2;
$custom-light: #899ff7;
$custom-dark: #000000;

JSON

{
  "hex": "#397af2",
  "rgb": {
    "r": 57,
    "g": 122,
    "b": 242
  },
  "hsl": {
    "h": 218.919,
    "s": 87.678,
    "l": 58.627
  },
  "oklch": {
    "l": 0.6032,
    "c": 0.19261,
    "h": 261.3
  },
  "luminance": 0.212
}

Semantic roles & 50–950 ramp

primary

#397AF2

secondary

#E8CE9F

accent

#B32AFE

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0D0E17

muted

#7E7E85

Preview Lab

Preview with #397AF2

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

Preview Lab → · Contrast checker → · Palette generator →