#5577BB#5577BB

#5577BB is a mid, moderate blue. Relative luminance 0.187; OKLCH L 57.4% C 0.112 H 263.2°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#5577BB
RGB	rgb(85, 119, 187)
HSL	hsl(220, 43%, 53%)
HSV	hsv(220, 55%, 73%)
CMYK	cmyk(54.5%, 36.4%, 0%, 26.7%)
CIE-LAB	lab(50.35, 7.95, -39.49)
CIE-LCH	lch(50.35, 40.29, 281.38°)
OKLab	oklab(57.45% -0.0134 -0.1116)
OKLCH	oklch(57.45% 0.112 263.2)
XYZ	xyz(19.3097, 18.7113, 49.5982)
Luminance	0.1871 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5577BB #BB9955

analogous

#55AABB #5577BB #6655BB

triadic

#5577BB #BB5577 #77BB55

tetradic

#5577BB #BB55AA #BB9955 #55BB66

square

#5577BB #BB55AA #BB9955 #55BB66

split-complementary

#5577BB #BB6655 #AABB55

monochromatic

#2B406B #3C5A97 #5577BB #819ACC #ACBDDE

Accessibility & contrast

On white

4.43

#5577BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#5577BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5577BB

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5577BB	#FFFFFF	#000000	##000000
##5577BB	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C7DBE

Deuteranopia (green-blind)

#4F74BA

Tritanopia (blue-blind)

#1B8690

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #5577bb;
/* rgb */ color: rgb(85, 119, 187);
/* oklch */ color: oklch(57.4% 0.112 263.2);

Tailwind

colors: {
  custom: {
    50: '#8c9dd0',
    500: '#5577bb',
    950: '#000000',
  },
}

SCSS

$custom: #5577bb;
$custom-light: #8c9dd0;
$custom-dark: #000000;

JSON

{
  "hex": "#5577bb",
  "rgb": {
    "r": 85,
    "g": 119,
    "b": 187
  },
  "hsl": {
    "h": 220,
    "s": 42.857,
    "l": 53.333
  },
  "oklch": {
    "l": 0.57449,
    "c": 0.11244,
    "h": 263.2
  },
  "luminance": 0.18713
}

Semantic roles & 50–950 ramp

primary

#5577BB

secondary

#CCBDA0

accent

#A955D3

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0D0E14

muted

#7D7E82

Preview Lab

Preview with #5577BB

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

Preview Lab → · Contrast checker → · Palette generator →