#3974F2#3974F2

#3974F2 is a mid, vivid blue. Relative luminance 0.198; OKLCH L 59.1% C 0.200 H 262.9°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#3974F2
RGB	rgb(57, 116, 242)
HSL	hsl(221, 88%, 59%)
HSV	hsv(221, 76%, 95%)
CMYK	cmyk(76.4%, 52.1%, 0%, 5.1%)
CIE-LAB	lab(51.57, 24.56, -68.75)
CIE-LCH	lch(51.57, 73.01, 289.66°)
OKLab	oklab(59.11% -0.0246 -0.1981)
OKLCH	oklch(59.11% 0.2 262.9)
XYZ	xyz(23.9540, 19.7687, 86.5405)
Luminance	0.1977 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3974F2 #F2B739

analogous

#39D0F2 #3974F2 #5A39F2

triadic

#3974F2 #F23974 #74F239

tetradic

#3974F2 #F239D0 #F2B739 #39F25A

square

#3974F2 #F239D0 #F2B739 #39F25A

split-complementary

#3974F2 #F25A39 #D0F239

monochromatic

#0B3CA6 #0F51DF #3974F2 #729CF6 #ACC5FA

Accessibility & contrast

On white

4.24

#3974F2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#3974F2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3974F2

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3974F2	#FFFFFF	#000000	##000000
##3974F2	1.00	4.24	4.95	4.95
#FFFFFF	4.24	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1684F6

Deuteranopia (green-blind)

#0073F0

Tritanopia (blue-blind)

#0093A8

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #3974f2;
/* rgb */ color: rgb(57, 116, 242);
/* oklch */ color: oklch(59.1% 0.200 262.9);

Tailwind

colors: {
  custom: {
    50: '#899bf7',
    500: '#3974f2',
    950: '#000000',
  },
}

SCSS

$custom: #3974f2;
$custom-light: #899bf7;
$custom-dark: #000000;

JSON

{
  "hex": "#3974f2",
  "rgb": {
    "r": 57,
    "g": 116,
    "b": 242
  },
  "hsl": {
    "h": 220.865,
    "s": 87.678,
    "l": 58.627
  },
  "oklch": {
    "l": 0.59108,
    "c": 0.19961,
    "h": 262.9
  },
  "luminance": 0.19771
}

Semantic roles & 50–950 ramp

primary

#3974F2

secondary

#E8D19F

accent

#BA2AFE

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0D0E17

muted

#7E7E85

Preview Lab

Preview with #3974F2

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

Preview Lab → · Contrast checker → · Palette generator →