#5B739B#5B739B

#5B739B is a mid, moderate blue. Relative luminance 0.169; OKLCH L 55.3% C 0.069 H 260.4°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#5B739B
RGB	rgb(91, 115, 155)
HSL	hsl(218, 26%, 48%)
HSV	hsv(218, 41%, 61%)
CMYK	cmyk(41.3%, 25.8%, 0%, 39.2%)
CIE-LAB	lab(48.07, 1.96, -24.41)
CIE-LCH	lch(48.07, 24.49, 274.58°)
OKLab	oklab(55.28% -0.0115 -0.0679)
OKLCH	oklch(55.28% 0.069 260.4)
XYZ	xyz(16.3596, 16.8513, 33.3946)
Luminance	0.1685 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B739B #9B835B

analogous

#5B939B #5B739B #635B9B

triadic

#5B739B #9B5B73 #739B5B

tetradic

#5B739B #9B5B93 #9B835B #5B9B63

square

#5B739B #9B5B93 #9B835B #5B9B63

split-complementary

#5B739B #9B635B #939B5B

monochromatic

#2E3A4E #445674 #5B739B #7F93B4 #A6B4CB

Accessibility & contrast

On white

4.81

#5B739B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#5B739B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5B739B

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B739B	#FFFFFF	#000000	##FFFFFF
##5B739B	1.00	4.81	4.37	4.81
#FFFFFF	4.81	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#65759D

Deuteranopia (green-blind)

#5E6F9A

Tritanopia (blue-blind)

#457B81

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #5b739b;
/* rgb */ color: rgb(91, 115, 155);
/* oklch */ color: oklch(55.3% 0.069 260.4);

Tailwind

colors: {
  custom: {
    50: '#8c9bb8',
    500: '#5b739b',
    950: '#000000',
  },
}

SCSS

$custom: #5b739b;
$custom-light: #8c9bb8;
$custom-dark: #000000;

JSON

{
  "hex": "#5b739b",
  "rgb": {
    "r": 91,
    "g": 115,
    "b": 155
  },
  "hsl": {
    "h": 217.5,
    "s": 26.016,
    "l": 48.235
  },
  "oklch": {
    "l": 0.55281,
    "c": 0.06886,
    "h": 260.4
  },
  "luminance": 0.16852
}

Semantic roles & 50–950 ramp

primary

#5B739B

secondary

#B9AD99

accent

#A065C2

background

#F8F9FB

surface

#F0F2F6

border

#CBCCD0

text

#0C0E11

muted

#7D7E80

Preview Lab

Preview with #5B739B

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

Preview Lab → · Contrast checker → · Palette generator →