#3974E2#3974E2

#3974E2 is a mid, vivid blue. Relative luminance 0.189; OKLCH L 58.0% C 0.179 H 261.5°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#3974E2
RGB	rgb(57, 116, 226)
HSL	hsl(219, 74%, 55%)
HSV	hsv(219, 75%, 89%)
CMYK	cmyk(74.8%, 48.7%, 0%, 11.4%)
CIE-LAB	lab(50.51, 18.70, -61.51)
CIE-LCH	lch(50.51, 64.29, 286.91°)
OKLab	oklab(57.96% -0.0265 -0.1768)
OKLCH	oklch(57.96% 0.179 261.5)
XYZ	xyz(21.6553, 18.8492, 74.4337)
Luminance	0.1885 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3974E2 #E2A739

analogous

#39C9E2 #3974E2 #5239E2

triadic

#3974E2 #E23974 #74E239

tetradic

#3974E2 #E239C9 #E2A739 #39E252

square

#3974E2 #E239C9 #E2A739 #39E252

split-complementary

#3974E2 #E25239 #C9E239

monochromatic

#153E8C #1C56C1 #3974E2 #6E99EA #A4BFF2

Accessibility & contrast

On white

4.40

#3974E2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#3974E2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3974E2

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3974E2	#FFFFFF	#000000	##000000
##3974E2	1.00	4.40	4.77	4.77
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3480E6

Deuteranopia (green-blind)

#0071E0

Tritanopia (blue-blind)

#008EA0

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3974e2;
/* rgb */ color: rgb(57, 116, 226);
/* oklch */ color: oklch(58.0% 0.179 261.5);

Tailwind

colors: {
  custom: {
    50: '#869bec',
    500: '#3974e2',
    950: '#000000',
  },
}

SCSS

$custom: #3974e2;
$custom-light: #869bec;
$custom-dark: #000000;

JSON

{
  "hex": "#3974e2",
  "rgb": {
    "r": 57,
    "g": 116,
    "b": 226
  },
  "hsl": {
    "h": 219.053,
    "s": 74.449,
    "l": 55.49
  },
  "oklch": {
    "l": 0.57958,
    "c": 0.17875,
    "h": 261.5
  },
  "luminance": 0.18852
}

Semantic roles & 50–950 ramp

primary

#3974E2

secondary

#DFC698

accent

#B037F1

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #3974E2

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

Preview Lab → · Contrast checker → · Palette generator →