#397CF2#397CF2

#397CF2 is a mid, vivid blue. Relative luminance 0.217; OKLCH L 60.7% C 0.190 H 260.8°. Best body text is #000000 at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#397CF2
RGB	rgb(57, 124, 242)
HSL	hsl(218, 88%, 59%)
HSV	hsv(218, 76%, 95%)
CMYK	cmyk(76.4%, 48.8%, 0%, 5.1%)
CIE-LAB	lab(53.70, 19.57, -65.32)
CIE-LCH	lch(53.70, 68.19, 286.68°)
OKLab	oklab(60.73% -0.0305 -0.1878)
OKLCH	oklch(60.73% 0.19 260.8)
XYZ	xyz(24.9162, 21.6931, 86.8612)
Luminance	0.2170 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#397CF2 #F2AF39

analogous

#39D9F2 #397CF2 #5239F2

triadic

#397CF2 #F2397C #7CF239

tetradic

#397CF2 #F239D9 #F2AF39 #39F252

square

#397CF2 #F239D9 #F2AF39 #39F252

split-complementary

#397CF2 #F25239 #D9F239

monochromatic

#0B43A6 #0F5ADF #397CF2 #72A2F6 #ACC8FA

Accessibility & contrast

On white

3.93

#397CF2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.34

#397CF2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #397CF2

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##397CF2	#FFFFFF	#000000	##000000
##397CF2	1.00	3.93	5.34	5.34
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.34	21.00	1.00	1.00
##000000	5.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3689F6

Deuteranopia (green-blind)

#0078F0

Tritanopia (blue-blind)

#0098AB

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #397cf2;
/* rgb */ color: rgb(57, 124, 242);
/* oklch */ color: oklch(60.7% 0.190 260.8);

Tailwind

colors: {
  custom: {
    50: '#89a1f7',
    500: '#397cf2',
    950: '#000000',
  },
}

SCSS

$custom: #397cf2;
$custom-light: #89a1f7;
$custom-dark: #000000;

JSON

{
  "hex": "#397cf2",
  "rgb": {
    "r": 57,
    "g": 124,
    "b": 242
  },
  "hsl": {
    "h": 218.27,
    "s": 87.678,
    "l": 58.627
  },
  "oklch": {
    "l": 0.60729,
    "c": 0.19029,
    "h": 260.8
  },
  "luminance": 0.21696
}

Semantic roles & 50–950 ramp

primary

#397CF2

secondary

#E8CD9F

accent

#B12AFE

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0D0E17

muted

#7E7E85

Preview Lab

Preview with #397CF2

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

Preview Lab → · Contrast checker → · Palette generator →