#5175CB#5175CB

#5175CB is a mid, vivid blue. Relative luminance 0.188; OKLCH L 57.7% C 0.139 H 265.2°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#5175CB
RGB	rgb(81, 117, 203)
HSL	hsl(222, 54%, 56%)
HSV	hsv(222, 60%, 80%)
CMYK	cmyk(60.1%, 42.4%, 0%, 20.4%)
CIE-LAB	lab(50.43, 13.66, -48.55)
CIE-LCH	lch(50.43, 50.43, 285.72°)
OKLab	oklab(57.73% -0.0115 -0.1382)
OKLCH	oklch(57.73% 0.139 265.2)
XYZ	xyz(20.5304, 18.7820, 59.0317)
Luminance	0.1878 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5175CB #CBA751

analogous

#51B2CB #5175CB #6A51CB

triadic

#5175CB #CB5175 #75CB51

tetradic

#5175CB #CB51B2 #CBA751 #51CB6A

square

#5175CB #CB51B2 #CBA751 #51CB6A

split-complementary

#5175CB #CB6A51 #B2CB51

monochromatic

#253F7C #3357AC #5175CB #809AD9 #AFC0E7

Accessibility & contrast

On white

4.41

#5175CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#5175CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5175CB

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5175CB	#FFFFFF	#000000	##000000
##5175CB	1.00	4.41	4.76	4.76
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F7ECE

Deuteranopia (green-blind)

#3D73C9

Tritanopia (blue-blind)

#008896

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #5175cb;
/* rgb */ color: rgb(81, 117, 203);
/* oklch */ color: oklch(57.7% 0.139 265.2);

Tailwind

colors: {
  custom: {
    50: '#8c9cdb',
    500: '#5175cb',
    950: '#000000',
  },
}

SCSS

$custom: #5175cb;
$custom-light: #8c9cdb;
$custom-dark: #000000;

JSON

{
  "hex": "#5175cb",
  "rgb": {
    "r": 81,
    "g": 117,
    "b": 203
  },
  "hsl": {
    "h": 222.295,
    "s": 53.982,
    "l": 55.686
  },
  "oklch": {
    "l": 0.57734,
    "c": 0.1387,
    "h": 265.2
  },
  "luminance": 0.18784
}

Semantic roles & 50–950 ramp

primary

#5175CB

secondary

#D5C6A3

accent

#B24ADD

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #5175CB

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

Preview Lab → · Contrast checker → · Palette generator →