#3B74CC#3B74CC

#3B74CC is a mid, vivid blue. Relative luminance 0.178; OKLCH L 56.6% C 0.149 H 258.9°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#3B74CC
RGB	rgb(59, 116, 204)
HSL	hsl(216, 59%, 52%)
HSV	hsv(216, 71%, 80%)
CMYK	cmyk(71.1%, 43.1%, 0%, 20%)
CIE-LAB	lab(49.23, 10.92, -51.10)
CIE-LCH	lch(49.23, 52.25, 282.06°)
OKLab	oklab(56.55% -0.0287 -0.1461)
OKLCH	oklch(56.55% 0.149 258.9)
XYZ	xyz(18.9442, 17.7782, 59.5482)
Luminance	0.1778 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B74CC #CC933B

analogous

#3BBCCC #3B74CC #4B3BCC

triadic

#3B74CC #CC3B74 #74CC3B

tetradic

#3B74CC #CC3BBC #CC933B #3BCC4B

square

#3B74CC #CC3BBC #CC933B #3BCC4B

split-complementary

#3B74CC #CC4B3B #BCCC3B

monochromatic

#1D3D70 #2A58A0 #3B74CC #6C96D9 #9CB9E5

Accessibility & contrast

On white

4.61

#3B74CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#3B74CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3B74CC

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B74CC	#FFFFFF	#000000	##FFFFFF
##3B74CC	1.00	4.61	4.56	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#497CCF

Deuteranopia (green-blind)

#2F6FCA

Tritanopia (blue-blind)

#008996

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3b74cc;
/* rgb */ color: rgb(59, 116, 204);
/* oklch */ color: oklch(56.6% 0.149 258.9);

Tailwind

colors: {
  custom: {
    50: '#829bdc',
    500: '#3b74cc',
    950: '#000000',
  },
}

SCSS

$custom: #3b74cc;
$custom-light: #829bdc;
$custom-dark: #000000;

JSON

{
  "hex": "#3b74cc",
  "rgb": {
    "r": 59,
    "g": 116,
    "b": 204
  },
  "hsl": {
    "h": 216.414,
    "s": 58.704,
    "l": 51.569
  },
  "oklch": {
    "l": 0.56554,
    "c": 0.1489,
    "h": 258.9
  },
  "luminance": 0.1778
}

Semantic roles & 50–950 ramp

primary

#3B74CC

secondary

#D1B892

accent

#A546E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3B74CC

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

Preview Lab → · Contrast checker → · Palette generator →