#5B6888#5B6888

#5B6888 is a mid, muted blue. Relative luminance 0.139; OKLCH L 51.9% C 0.053 H 267.4°. Best body text is #FFFFFF at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#5B6888
RGB	rgb(91, 104, 136)
HSL	hsl(223, 20%, 45%)
HSV	hsv(223, 33%, 53%)
CMYK	cmyk(33.1%, 23.5%, 0%, 46.7%)
CIE-LAB	lab(44.09, 3.19, -19.27)
CIE-LCH	lch(44.09, 19.53, 279.40°)
OKLab	oklab(51.91% -0.0024 -0.0532)
OKLCH	oklch(51.91% 0.053 267.4)
XYZ	xyz(13.7074, 13.9018, 25.2489)
Luminance	0.1390 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B6888 #887B5B

analogous

#5B7F88 #5B6888 #655B88

triadic

#5B6888 #885B68 #68885B

tetradic

#5B6888 #885B7F #887B5B #5B8865

square

#5B6888 #885B7F #887B5B #5B8865

split-complementary

#5B6888 #88655B #7F885B

monochromatic

#2A303F #424C63 #5B6888 #7A87A6 #9FA8BF

Accessibility & contrast

On white

5.55

#5B6888 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#5B6888 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B6888

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B6888	#FFFFFF	#000000	##FFFFFF
##5B6888	1.00	5.55	3.78	5.55
#FFFFFF	5.55	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E6A89

Deuteranopia (green-blind)

#5A6687

Tritanopia (blue-blind)

#4E6E73

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #5b6888;
/* rgb */ color: rgb(91, 104, 136);
/* oklch */ color: oklch(51.9% 0.053 267.4);

Tailwind

colors: {
  custom: {
    50: '#8a93aa',
    500: '#5b6888',
    950: '#000000',
  },
}

SCSS

$custom: #5b6888;
$custom-light: #8a93aa;
$custom-dark: #000000;

JSON

{
  "hex": "#5b6888",
  "rgb": {
    "r": 91,
    "g": 104,
    "b": 136
  },
  "hsl": {
    "h": 222.667,
    "s": 19.824,
    "l": 44.51
  },
  "oklch": {
    "l": 0.51908,
    "c": 0.05329,
    "h": 267.4
  },
  "luminance": 0.13902
}

Semantic roles & 50–950 ramp

primary

#5B6888

secondary

#ADA592

accent

#A56BBC

background

#F8F9FA

surface

#F0F1F4

border

#CBCBCE

text

#0C0D10

muted

#7D7E7F

Preview Lab

Preview with #5B6888

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

Preview Lab → · Contrast checker → · Palette generator →