#3974CA#3974CA

#3974CA is a mid, vivid blue. Relative luminance 0.176; OKLCH L 56.3% C 0.147 H 258.0°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#3974CA
RGB	rgb(57, 116, 202)
HSL	hsl(216, 58%, 51%)
HSV	hsv(216, 72%, 79%)
CMYK	cmyk(71.8%, 42.6%, 0%, 20.8%)
CIE-LAB	lab(49.04, 9.91, -50.26)
CIE-LCH	lch(49.04, 51.23, 281.15°)
OKLab	oklab(56.35% -0.0305 -0.1437)
OKLCH	oklch(56.35% 0.147 258)
XYZ	xyz(18.5895, 17.6229, 58.2875)
Luminance	0.1762 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3974CA #CA8F39

analogous

#39BDCA #3974CA #4639CA

triadic

#3974CA #CA3974 #74CA39

tetradic

#3974CA #CA39BD #CA8F39 #39CA46

square

#3974CA #CA39BD #CA8F39 #39CA46

split-complementary

#3974CA #CA4639 #BDCA39

monochromatic

#1D3D6C #2A589C #3974CA #6996D7 #9AB8E4

Accessibility & contrast

On white

4.64

#3974CA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.52

#3974CA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3974CA

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3974CA	#FFFFFF	#000000	##FFFFFF
##3974CA	1.00	4.64	4.52	4.64
#FFFFFF	4.64	1.00	21.00	1.00
#000000	4.52	21.00	1.00	21.00
##FFFFFF	4.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A7CCD

Deuteranopia (green-blind)

#316EC8

Tritanopia (blue-blind)

#008895

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3974ca;
/* rgb */ color: rgb(57, 116, 202);
/* oklch */ color: oklch(56.3% 0.147 258.0);

Tailwind

colors: {
  custom: {
    50: '#819bda',
    500: '#3974ca',
    950: '#000000',
  },
}

SCSS

$custom: #3974ca;
$custom-light: #819bda;
$custom-dark: #000000;

JSON

{
  "hex": "#3974ca",
  "rgb": {
    "r": 57,
    "g": 116,
    "b": 202
  },
  "hsl": {
    "h": 215.586,
    "s": 57.769,
    "l": 50.784
  },
  "oklch": {
    "l": 0.56348,
    "c": 0.14689,
    "h": 258
  },
  "luminance": 0.17625
}

Semantic roles & 50–950 ramp

primary

#3974CA

secondary

#D0B58F

accent

#A247E1

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3974CA

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

Preview Lab → · Contrast checker → · Palette generator →