#3974DA#3974DA

#3974DA is a mid, vivid blue. Relative luminance 0.184; OKLCH L 57.4% C 0.168 H 260.5°. Best body text is #000000 at 4.68:1 contrast (WCAG AA passes).

Color values

HEX	#3974DA
RGB	rgb(57, 116, 218)
HSL	hsl(218, 69%, 54%)
HSV	hsv(218, 74%, 85%)
CMYK	cmyk(73.9%, 46.8%, 0%, 14.5%)
CIE-LAB	lab(50.00, 15.77, -57.81)
CIE-LCH	lch(50.00, 59.93, 285.25°)
OKLab	oklab(57.4% -0.0277 -0.1659)
OKLCH	oklch(57.4% 0.168 260.5)
XYZ	xyz(20.5831, 18.4203, 68.7868)
Luminance	0.1842 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3974DA #DA9F39

analogous

#39C5DA #3974DA #4F39DA

triadic

#3974DA #DA3974 #74DA39

tetradic

#3974DA #DA39C5 #DA9F39 #39DA4F

square

#3974DA #DA39C5 #DA9F39 #39DA4F

split-complementary

#3974DA #DA4F39 #C5DA39

monochromatic

#183E81 #2257B4 #3974DA #6D98E4 #A0BCED

Accessibility & contrast

On white

4.48

#3974DA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.68

#3974DA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3974DA

4.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3974DA	#FFFFFF	#000000	##000000
##3974DA	1.00	4.48	4.68	4.68
#FFFFFF	4.48	1.00	21.00	21.00
#000000	4.68	21.00	1.00	1.00
##000000	4.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D7FDE

Deuteranopia (green-blind)

#1170D8

Tritanopia (blue-blind)

#008C9C

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3974da;
/* rgb */ color: rgb(57, 116, 218);
/* oklch */ color: oklch(57.4% 0.168 260.5);

Tailwind

colors: {
  custom: {
    50: '#849be6',
    500: '#3974da',
    950: '#000000',
  },
}

SCSS

$custom: #3974da;
$custom-light: #849be6;
$custom-dark: #000000;

JSON

{
  "hex": "#3974da",
  "rgb": {
    "r": 57,
    "g": 116,
    "b": 218
  },
  "hsl": {
    "h": 218.012,
    "s": 68.511,
    "l": 53.922
  },
  "oklch": {
    "l": 0.57405,
    "c": 0.16818,
    "h": 260.5
  },
  "luminance": 0.18423
}

Semantic roles & 50–950 ramp

primary

#3974DA

secondary

#DAC195

accent

#AB3CEB

background

#F8F9FE

surface

#F0F2FC

border

#CBCCD5

text

#0C0E16

muted

#7D7E84

Preview Lab

Preview with #3974DA

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

Preview Lab → · Contrast checker → · Palette generator →