#5175CF#5175CF

#5175CF is a mid, vivid blue. Relative luminance 0.190; OKLCH L 58.0% C 0.144 H 265.7°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#5175CF
RGB	rgb(81, 117, 207)
HSL	hsl(223, 57%, 56%)
HSV	hsv(223, 61%, 81%)
CMYK	cmyk(60.9%, 43.5%, 0%, 18.8%)
CIE-LAB	lab(50.66, 15.02, -50.46)
CIE-LCH	lch(50.66, 52.65, 286.57°)
OKLab	oklab(57.98% -0.0108 -0.1438)
OKLCH	oklch(57.98% 0.144 265.7)
XYZ	xyz(21.0133, 18.9751, 61.5746)
Luminance	0.1898 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5175CF #CFAB51

analogous

#51B4CF #5175CF #6C51CF

triadic

#5175CF #CF5175 #75CF51

tetradic

#5175CF #CF51B4 #CFAB51 #51CF6C

square

#5175CF #CF51B4 #CFAB51 #51CF6C

split-complementary

#5175CF #CF6C51 #B4CF51

monochromatic

#243F82 #3156B2 #5175CF #819BDC #B1C1E9

Accessibility & contrast

On white

4.38

#5175CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.80

#5175CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5175CF

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5175CF	#FFFFFF	#000000	##000000
##5175CF	1.00	4.38	4.80	4.80
#FFFFFF	4.38	1.00	21.00	21.00
#000000	4.80	21.00	1.00	1.00
##000000	4.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C7FD2

Deuteranopia (green-blind)

#3973CD

Tritanopia (blue-blind)

#008998

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #5175cf;
/* rgb */ color: rgb(81, 117, 207);
/* oklch */ color: oklch(58.0% 0.144 265.7);

Tailwind

colors: {
  custom: {
    50: '#8d9cde',
    500: '#5175cf',
    950: '#000000',
  },
}

SCSS

$custom: #5175cf;
$custom-light: #8d9cde;
$custom-dark: #000000;

JSON

{
  "hex": "#5175cf",
  "rgb": {
    "r": 81,
    "g": 117,
    "b": 207
  },
  "hsl": {
    "h": 222.857,
    "s": 56.757,
    "l": 56.471
  },
  "oklch": {
    "l": 0.57982,
    "c": 0.14426,
    "h": 265.7
  },
  "luminance": 0.18977
}

Semantic roles & 50–950 ramp

primary

#5175CF

secondary

#D8C9A4

accent

#B548E0

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #5175CF

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

Preview Lab → · Contrast checker → · Palette generator →