#5177BC#5177BC

#5177BC is a mid, moderate blue. Relative luminance 0.186; OKLCH L 57.3% C 0.115 H 261.6°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX	#5177BC
RGB	rgb(81, 119, 188)
HSL	hsl(219, 44%, 53%)
HSV	hsv(219, 57%, 74%)
CMYK	cmyk(56.9%, 36.7%, 0%, 26.3%)
CIE-LAB	lab(50.18, 7.41, -40.34)
CIE-LCH	lch(50.18, 41.02, 280.41°)
OKLab	oklab(57.28% -0.0169 -0.1142)
OKLCH	oklch(57.28% 0.115 261.6)
XYZ	xyz(19.0641, 18.5723, 50.1474)
Luminance	0.1857 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5177BC #BC9651

analogous

#51ACBC #5177BC #6151BC

triadic

#5177BC #BC5177 #77BC51

tetradic

#5177BC #BC51AC #BC9651 #51BC61

square

#5177BC #BC51AC #BC9651 #51BC61

split-complementary

#5177BC #BC6151 #ACBC51

monochromatic

#29406A #3A5B96 #5177BC #7D9ACD #A9BCDE

Accessibility & contrast

On white

4.45

#5177BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.71

#5177BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5177BC

4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5177BC	#FFFFFF	#000000	##000000
##5177BC	1.00	4.45	4.71	4.71
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.71	21.00	1.00	1.00
##000000	4.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B7DBF

Deuteranopia (green-blind)

#4D73BB

Tritanopia (blue-blind)

#008690

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #5177bc;
/* rgb */ color: rgb(81, 119, 188);
/* oklch */ color: oklch(57.3% 0.115 261.6);

Tailwind

colors: {
  custom: {
    50: '#8a9dd0',
    500: '#5177bc',
    950: '#000000',
  },
}

SCSS

$custom: #5177bc;
$custom-light: #8a9dd0;
$custom-dark: #000000;

JSON

{
  "hex": "#5177bc",
  "rgb": {
    "r": 81,
    "g": 119,
    "b": 188
  },
  "hsl": {
    "h": 218.692,
    "s": 44.398,
    "l": 52.745
  },
  "oklch": {
    "l": 0.5728,
    "c": 0.11544,
    "h": 261.6
  },
  "luminance": 0.18574
}

Semantic roles & 50–950 ramp

primary

#5177BC

secondary

#CCBB9D

accent

#A754D4

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0C0E14

muted

#7D7E82

Preview Lab

Preview with #5177BC

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

Preview Lab → · Contrast checker → · Palette generator →