#5178BF#5178BF

#5178BF is a mid, moderate blue. Relative luminance 0.189; OKLCH L 57.7% C 0.118 H 261.6°. Best body text is #000000 at 4.79:1 contrast (WCAG AA passes).

Color values

HEX	#5178BF
RGB	rgb(81, 120, 191)
HSL	hsl(219, 46%, 53%)
HSV	hsv(219, 58%, 75%)
CMYK	cmyk(57.6%, 37.2%, 0%, 25.1%)
CIE-LAB	lab(50.62, 7.80, -41.38)
CIE-LCH	lch(50.62, 42.11, 280.67°)
OKLab	oklab(57.67% -0.0173 -0.1172)
OKLCH	oklch(57.67% 0.118 261.6)
XYZ	xyz(19.5105, 18.9423, 51.9082)
Luminance	0.1894 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5178BF #BF9851

analogous

#51AFBF #5178BF #6151BF

triadic

#5178BF #BF5178 #78BF51

tetradic

#5178BF #BF51AF #BF9851 #51BF61

square

#5178BF #BF51AF #BF9851 #51BF61

split-complementary

#5178BF #BF6151 #AFBF51

monochromatic

#28416D #395B9A #5178BF #7E9BCF #AABDE0

Accessibility & contrast

On white

4.39

#5178BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.79

#5178BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5178BF

4.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5178BF	#FFFFFF	#000000	##000000
##5178BF	1.00	4.39	4.79	4.79
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.79	21.00	1.00	1.00
##000000	4.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B7EC2

Deuteranopia (green-blind)

#4C74BD

Tritanopia (blue-blind)

#008892

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #5178bf;
/* rgb */ color: rgb(81, 120, 191);
/* oklch */ color: oklch(57.7% 0.118 261.6);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#5178bf",
  "rgb": {
    "r": 81,
    "g": 120,
    "b": 191
  },
  "hsl": {
    "h": 218.727,
    "s": 46.218,
    "l": 53.333
  },
  "oklch": {
    "l": 0.57669,
    "c": 0.11848,
    "h": 261.6
  },
  "luminance": 0.18944
}

Semantic roles & 50–950 ramp

primary

#5178BF

secondary

#CEBD9E

accent

#A752D6

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #5178BF

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

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