#5175BB#5175BB

#5175BB is a mid, moderate blue. Relative luminance 0.181; OKLCH L 56.8% C 0.116 H 262.6°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#5175BB
RGB	rgb(81, 117, 187)
HSL	hsl(220, 44%, 53%)
HSV	hsv(220, 57%, 73%)
CMYK	cmyk(56.7%, 37.4%, 0%, 26.7%)
CIE-LAB	lab(49.57, 8.30, -40.74)
CIE-LCH	lch(49.57, 41.58, 281.52°)
OKLab	oklab(56.79% -0.0149 -0.1154)
OKLCH	oklch(56.79% 0.116 262.6)
XYZ	xyz(18.7212, 18.0583, 49.5031)
Luminance	0.1806 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5175BB #BB9751

analogous

#51AABB #5175BB #6251BB

triadic

#5175BB #BB5175 #75BB51

tetradic

#5175BB #BB51AA #BB9751 #51BB62

square

#5175BB #BB51AA #BB9751 #51BB62

split-complementary

#5175BB #BB6251 #AABB51

monochromatic

#293F69 #3A5995 #5175BB #7D98CC #A9BBDD

Accessibility & contrast

On white

4.55

#5175BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#5175BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5175BB

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5175BB	#FFFFFF	#000000	##000000
##5175BB	1.00	4.55	4.61	4.61
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#587BBE

Deuteranopia (green-blind)

#4B71BA

Tritanopia (blue-blind)

#03848F

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #5175bb;
/* rgb */ color: rgb(81, 117, 187);
/* oklch */ color: oklch(56.8% 0.116 262.6);

Tailwind

colors: {
  custom: {
    50: '#8a9cd0',
    500: '#5175bb',
    950: '#000000',
  },
}

SCSS

$custom: #5175bb;
$custom-light: #8a9cd0;
$custom-dark: #000000;

JSON

{
  "hex": "#5175bb",
  "rgb": {
    "r": 81,
    "g": 117,
    "b": 187
  },
  "hsl": {
    "h": 219.623,
    "s": 43.802,
    "l": 52.549
  },
  "oklch": {
    "l": 0.56785,
    "c": 0.11633,
    "h": 262.6
  },
  "luminance": 0.1806
}

Semantic roles & 50–950 ramp

primary

#5175BB

secondary

#CBBB9D

accent

#A854D4

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #5175BB

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

Preview Lab → · Contrast checker → · Palette generator →