#5178BE#5178BE

#5178BE is a mid, moderate blue. Relative luminance 0.189; OKLCH L 57.6% C 0.117 H 261.4°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#5178BE
RGB	rgb(81, 120, 190)
HSL	hsl(219, 46%, 53%)
HSV	hsv(219, 57%, 75%)
CMYK	cmyk(57.4%, 36.8%, 0%, 25.5%)
CIE-LAB	lab(50.57, 7.46, -40.88)
CIE-LCH	lch(50.57, 41.56, 280.35°)
OKLab	oklab(57.61% -0.0176 -0.1158)
OKLCH	oklch(57.61% 0.117 261.4)
XYZ	xyz(19.4009, 18.8984, 51.3306)
Luminance	0.1890 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5178BE #BE9751

analogous

#51AFBE #5178BE #6051BE

triadic

#5178BE #BE5178 #78BE51

tetradic

#5178BE #BE51AF #BE9751 #51BE60

square

#5178BE #BE51AF #BE9751 #51BE60

split-complementary

#5178BE #BE6051 #AFBE51

monochromatic

#28416C #395B99 #5178BE #7E9BCF #AABDDF

Accessibility & contrast

On white

4.39

#5178BE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#5178BE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5178BE

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5178BE	#FFFFFF	#000000	##000000
##5178BE	1.00	4.39	4.78	4.78
#FFFFFF	4.39	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)

#5B7EC1

Deuteranopia (green-blind)

#4D74BD

Tritanopia (blue-blind)

#008892

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #5178be;
/* rgb */ color: rgb(81, 120, 190);
/* oklch */ color: oklch(57.6% 0.117 261.4);

Tailwind

colors: {
  custom: {
    50: '#8a9ed2',
    500: '#5178be',
    950: '#000000',
  },
}

SCSS

$custom: #5178be;
$custom-light: #8a9ed2;
$custom-dark: #000000;

JSON

{
  "hex": "#5178be",
  "rgb": {
    "r": 81,
    "g": 120,
    "b": 190
  },
  "hsl": {
    "h": 218.532,
    "s": 45.607,
    "l": 53.137
  },
  "oklch": {
    "l": 0.57613,
    "c": 0.11709,
    "h": 261.4
  },
  "luminance": 0.189
}

Semantic roles & 50–950 ramp

primary

#5178BE

secondary

#CDBC9E

accent

#A653D5

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #5178BE

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

Preview Lab → · Contrast checker → · Palette generator →