#5175CD#5175CD

#5175CD is a mid, vivid blue. Relative luminance 0.189; OKLCH L 57.9% C 0.141 H 265.5°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#5175CD
RGB	rgb(81, 117, 205)
HSL	hsl(223, 55%, 56%)
HSV	hsv(223, 60%, 80%)
CMYK	cmyk(60.5%, 42.9%, 0%, 19.6%)
CIE-LAB	lab(50.54, 14.34, -49.51)
CIE-LCH	lch(50.54, 51.54, 286.15°)
OKLab	oklab(57.86% -0.0112 -0.141)
OKLCH	oklch(57.86% 0.141 265.5)
XYZ	xyz(20.7703, 18.8779, 60.2950)
Luminance	0.1888 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5175CD #CDA951

analogous

#51B3CD #5175CD #6B51CD

triadic

#5175CD #CD5175 #75CD51

tetradic

#5175CD #CD51B3 #CDA951 #51CD6B

square

#5175CD #CD51B3 #CDA951 #51CD6B

split-complementary

#5175CD #CD6B51 #B3CD51

monochromatic

#253F7F #3256AF #5175CD #819BDB #B0C0E8

Accessibility & contrast

On white

4.40

#5175CD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#5175CD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5175CD

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5175CD	#FFFFFF	#000000	##000000
##5175CD	1.00	4.40	4.78	4.78
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D7ED0

Deuteranopia (green-blind)

#3B73CB

Tritanopia (blue-blind)

#008997

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #5175cd;
/* rgb */ color: rgb(81, 117, 205);
/* oklch */ color: oklch(57.9% 0.141 265.5);

Tailwind

colors: {
  custom: {
    50: '#8c9cdd',
    500: '#5175cd',
    950: '#000000',
  },
}

SCSS

$custom: #5175cd;
$custom-light: #8c9cdd;
$custom-dark: #000000;

JSON

{
  "hex": "#5175cd",
  "rgb": {
    "r": 81,
    "g": 117,
    "b": 205
  },
  "hsl": {
    "h": 222.581,
    "s": 55.357,
    "l": 56.078
  },
  "oklch": {
    "l": 0.57858,
    "c": 0.14148,
    "h": 265.5
  },
  "luminance": 0.1888
}

Semantic roles & 50–950 ramp

primary

#5175CD

secondary

#D7C8A3

accent

#B349DF

background

#F9F9FD

surface

#F1F2FB

border

#CBCCD4

text

#0D0E15

muted

#7E7E83

Preview Lab

Preview with #5175CD

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

Preview Lab → · Contrast checker → · Palette generator →