#5175CC#5175CC

#5175CC is a mid, vivid blue. Relative luminance 0.188; OKLCH L 57.8% C 0.140 H 265.3°. Best body text is #000000 at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#5175CC
RGB	rgb(81, 117, 204)
HSL	hsl(222, 55%, 56%)
HSV	hsv(222, 60%, 80%)
CMYK	cmyk(60.3%, 42.6%, 0%, 20%)
CIE-LAB	lab(50.49, 14.00, -49.03)
CIE-LCH	lch(50.49, 50.99, 285.94°)
OKLab	oklab(57.8% -0.0114 -0.1396)
OKLCH	oklch(57.8% 0.14 265.3)
XYZ	xyz(20.6500, 18.8298, 59.6613)
Luminance	0.1883 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5175CC #CCA851

analogous

#51B2CC #5175CC #6A51CC

triadic

#5175CC #CC5175 #75CC51

tetradic

#5175CC #CC51B2 #CCA851 #51CC6A

square

#5175CC #CC51B2 #CCA851 #51CC6A

split-complementary

#5175CC #CC6A51 #B2CC51

monochromatic

#253F7E #3357AD #5175CC #809BDA #B0C0E8

Accessibility & contrast

On white

4.41

#5175CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.77

#5175CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5175CC

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5175CC	#FFFFFF	#000000	##000000
##5175CC	1.00	4.41	4.77	4.77
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.77	21.00	1.00	1.00
##000000	4.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E7ECF

Deuteranopia (green-blind)

#3C73CA

Tritanopia (blue-blind)

#008996

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #5175cc;
/* rgb */ color: rgb(81, 117, 204);
/* oklch */ color: oklch(57.8% 0.140 265.3);

Tailwind

colors: {
  custom: {
    50: '#8c9cdc',
    500: '#5175cc',
    950: '#000000',
  },
}

SCSS

$custom: #5175cc;
$custom-light: #8c9cdc;
$custom-dark: #000000;

JSON

{
  "hex": "#5175cc",
  "rgb": {
    "r": 81,
    "g": 117,
    "b": 204
  },
  "hsl": {
    "h": 222.439,
    "s": 54.667,
    "l": 55.882
  },
  "oklch": {
    "l": 0.57796,
    "c": 0.14009,
    "h": 265.3
  },
  "luminance": 0.18832
}

Semantic roles & 50–950 ramp

primary

#5175CC

secondary

#D6C7A3

accent

#B34ADE

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #5175CC

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

Preview Lab → · Contrast checker → · Palette generator →