#3974CD#3974CD

#3974CD is a mid, vivid blue. Relative luminance 0.178; OKLCH L 56.5% C 0.151 H 258.6°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#3974CD
RGB	rgb(57, 116, 205)
HSL	hsl(216, 60%, 51%)
HSV	hsv(216, 72%, 80%)
CMYK	cmyk(72.2%, 43.4%, 0%, 19.6%)
CIE-LAB	lab(49.21, 11.00, -51.70)
CIE-LCH	lch(49.21, 52.85, 282.02°)
OKLab	oklab(56.54% -0.0299 -0.1479)
OKLCH	oklch(56.54% 0.151 258.6)
XYZ	xyz(18.9482, 17.7664, 60.1764)
Luminance	0.1777 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3974CD #CD9239

analogous

#39BECD #3974CD #4839CD

triadic

#3974CD #CD3974 #74CD39

tetradic

#3974CD #CD39BE #CD9239 #39CD48

square

#3974CD #CD39BE #CD9239 #39CD48

split-complementary

#3974CD #CD4839 #BECD39

monochromatic

#1C3D6F #2858A0 #3974CD #6A96D9 #9BB9E6

Accessibility & contrast

On white

4.61

#3974CD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#3974CD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3974CD

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3974CD	#FFFFFF	#000000	##FFFFFF
##3974CD	1.00	4.61	4.55	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#487CD0

Deuteranopia (green-blind)

#2D6FCB

Tritanopia (blue-blind)

#008996

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3974cd;
/* rgb */ color: rgb(57, 116, 205);
/* oklch */ color: oklch(56.5% 0.151 258.6);

Tailwind

colors: {
  custom: {
    50: '#829bdd',
    500: '#3974cd',
    950: '#000000',
  },
}

SCSS

$custom: #3974cd;
$custom-light: #829bdd;
$custom-dark: #000000;

JSON

{
  "hex": "#3974cd",
  "rgb": {
    "r": 57,
    "g": 116,
    "b": 205
  },
  "hsl": {
    "h": 216.081,
    "s": 59.677,
    "l": 51.373
  },
  "oklch": {
    "l": 0.56542,
    "c": 0.1509,
    "h": 258.6
  },
  "luminance": 0.17768
}

Semantic roles & 50–950 ramp

primary

#3974CD

secondary

#D2B890

accent

#A445E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3974CD

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

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