#5174CF#5174CF

#5174CF is a mid, vivid blue. Relative luminance 0.187; OKLCH L 57.8% C 0.145 H 266.1°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#5174CF
RGB	rgb(81, 116, 207)
HSL	hsl(223, 57%, 56%)
HSV	hsv(223, 61%, 81%)
CMYK	cmyk(60.9%, 44%, 0%, 18.8%)
CIE-LAB	lab(50.39, 15.63, -50.90)
CIE-LCH	lch(50.39, 53.24, 287.07°)
OKLab	oklab(57.77% -0.0098 -0.1451)
OKLCH	oklch(57.77% 0.145 266.1)
XYZ	xyz(20.8974, 18.7433, 61.5360)
Luminance	0.1875 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5174CF #CFAC51

analogous

#51B3CF #5174CF #6D51CF

triadic

#5174CF #CF5174 #74CF51

tetradic

#5174CF #CF51B3 #CFAC51 #51CF6D

square

#5174CF #CF51B3 #CFAC51 #51CF6D

split-complementary

#5174CF #CF6D51 #B3CF51

monochromatic

#243E82 #3155B2 #5174CF #819ADC #B1C1E9

Accessibility & contrast

On white

4.42

#5174CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#5174CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5174CF

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5174CF	#FFFFFF	#000000	##000000
##5174CF	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A7ED2

Deuteranopia (green-blind)

#3773CD

Tritanopia (blue-blind)

#008997

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #5174cf;
/* rgb */ color: rgb(81, 116, 207);
/* oklch */ color: oklch(57.8% 0.145 266.1);

Tailwind

colors: {
  custom: {
    50: '#8d9bde',
    500: '#5174cf',
    950: '#000000',
  },
}

SCSS

$custom: #5174cf;
$custom-light: #8d9bde;
$custom-dark: #000000;

JSON

{
  "hex": "#5174cf",
  "rgb": {
    "r": 81,
    "g": 116,
    "b": 207
  },
  "hsl": {
    "h": 223.333,
    "s": 56.757,
    "l": 56.471
  },
  "oklch": {
    "l": 0.57773,
    "c": 0.14547,
    "h": 266.1
  },
  "luminance": 0.18745
}

Semantic roles & 50–950 ramp

primary

#5174CF

secondary

#D8C9A4

accent

#B648E0

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #5174CF

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

Preview Lab → · Contrast checker → · Palette generator →