#3975F2#3975F2

#3975F2 is a mid, vivid blue. Relative luminance 0.200; OKLCH L 59.3% C 0.198 H 262.7°. Best body text is #000000 at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#3975F2
RGB	rgb(57, 117, 242)
HSL	hsl(221, 88%, 59%)
HSV	hsv(221, 76%, 95%)
CMYK	cmyk(76.4%, 51.7%, 0%, 5.1%)
CIE-LAB	lab(51.84, 23.93, -68.33)
CIE-LCH	lch(51.84, 72.40, 289.30°)
OKLab	oklab(59.31% -0.0254 -0.1968)
OKLCH	oklch(59.31% 0.198 262.7)
XYZ	xyz(24.0699, 20.0005, 86.5791)
Luminance	0.2000 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3975F2 #F2B639

analogous

#39D1F2 #3975F2 #5939F2

triadic

#3975F2 #F23975 #75F239

tetradic

#3975F2 #F239D1 #F2B639 #39F259

square

#3975F2 #F239D1 #F2B639 #39F259

split-complementary

#3975F2 #F25939 #D1F239

monochromatic

#0B3DA6 #0F52DF #3975F2 #729DF6 #ACC5FA

Accessibility & contrast

On white

4.20

#3975F2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.00

#3975F2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3975F2

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3975F2	#FFFFFF	#000000	##000000
##3975F2	1.00	4.20	5.00	5.00
#FFFFFF	4.20	1.00	21.00	21.00
#000000	5.00	21.00	1.00	1.00
##000000	5.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C85F6

Deuteranopia (green-blind)

#0074F0

Tritanopia (blue-blind)

#0093A8

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3975f2;
/* rgb */ color: rgb(57, 117, 242);
/* oklch */ color: oklch(59.3% 0.198 262.7);

Tailwind

colors: {
  custom: {
    50: '#899cf7',
    500: '#3975f2',
    950: '#000000',
  },
}

SCSS

$custom: #3975f2;
$custom-light: #899cf7;
$custom-dark: #000000;

JSON

{
  "hex": "#3975f2",
  "rgb": {
    "r": 57,
    "g": 117,
    "b": 242
  },
  "hsl": {
    "h": 220.541,
    "s": 87.678,
    "l": 58.627
  },
  "oklch": {
    "l": 0.59308,
    "c": 0.19844,
    "h": 262.7
  },
  "luminance": 0.20003
}

Semantic roles & 50–950 ramp

primary

#3975F2

secondary

#E8D09F

accent

#B92AFE

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0D0E17

muted

#7E7E85

Preview Lab

Preview with #3975F2

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

Preview Lab → · Contrast checker → · Palette generator →