#3B74CF#3B74CF

#3B74CF is a mid, vivid blue. Relative luminance 0.179; OKLCH L 56.7% C 0.153 H 259.4°. Best body text is #000000 at 4.59:1 contrast (WCAG AA passes).

Color values

HEX	#3B74CF
RGB	rgb(59, 116, 207)
HSL	hsl(217, 61%, 52%)
HSV	hsv(217, 71%, 81%)
CMYK	cmyk(71.5%, 44%, 0%, 18.8%)
CIE-LAB	lab(49.40, 12.01, -52.52)
CIE-LCH	lch(49.40, 53.88, 282.88°)
OKLab	oklab(56.75% -0.0281 -0.1503)
OKLCH	oklch(56.75% 0.153 259.4)
XYZ	xyz(19.3074, 17.9235, 61.4614)
Luminance	0.1793 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B74CF #CF963B

analogous

#3BBECF #3B74CF #4C3BCF

triadic

#3B74CF #CF3B74 #74CF3B

tetradic

#3B74CF #CF3BBE #CF963B #3BCF4C

square

#3B74CF #CF3BBE #CF963B #3BCF4C

split-complementary

#3B74CF #CF4C3B #BECF3B

monochromatic

#1C3E73 #2858A5 #3B74CF #6C97DB #9DBAE7

Accessibility & contrast

On white

4.58

#3B74CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.59

#3B74CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B74CF

4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B74CF	#FFFFFF	#000000	##000000
##3B74CF	1.00	4.58	4.59	4.59
#FFFFFF	4.58	1.00	21.00	21.00
#000000	4.59	21.00	1.00	1.00
##000000	4.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#477DD2

Deuteranopia (green-blind)

#2B6FCD

Tritanopia (blue-blind)

#008997

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #3b74cf;
/* rgb */ color: rgb(59, 116, 207);
/* oklch */ color: oklch(56.7% 0.153 259.4);

Tailwind

colors: {
  custom: {
    50: '#839bde',
    500: '#3b74cf',
    950: '#000000',
  },
}

SCSS

$custom: #3b74cf;
$custom-light: #839bde;
$custom-dark: #000000;

JSON

{
  "hex": "#3b74cf",
  "rgb": {
    "r": 59,
    "g": 116,
    "b": 207
  },
  "hsl": {
    "h": 216.892,
    "s": 60.656,
    "l": 52.157
  },
  "oklch": {
    "l": 0.56748,
    "c": 0.15291,
    "h": 259.4
  },
  "luminance": 0.17926
}

Semantic roles & 50–950 ramp

primary

#3B74CF

secondary

#D3BA93

accent

#A644E4

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3B74CF

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

Preview Lab → · Contrast checker → · Palette generator →