#5B8399#5B8399

#5B8399 is a mid, muted cyan. Relative luminance 0.208; OKLCH L 58.9% C 0.056 H 233.0°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#5B8399
RGB	rgb(91, 131, 153)
HSL	hsl(201, 25%, 48%)
HSV	hsv(201, 41%, 60%)
CMYK	cmyk(40.5%, 14.4%, 0%, 40%)
CIE-LAB	lab(52.68, -7.96, -16.17)
CIE-LCH	lch(52.68, 18.02, 243.79°)
OKLab	oklab(58.88% -0.0335 -0.0446)
OKLCH	oklch(58.88% 0.056 233)
XYZ	xyz(18.1785, 20.7555, 33.1791)
Luminance	0.2076 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5B8399 #99715B

analogous

#5B9990 #5B8399 #5B6499

triadic

#5B8399 #995B83 #83995B

tetradic

#5B8399 #905B99 #99715B #64995B

square

#5B8399 #905B99 #99715B #64995B

split-complementary

#5B8399 #995B64 #99905B

monochromatic

#2D414C #446273 #5B8399 #7FA0B3 #A5BCC9

Accessibility & contrast

On white

4.08

#5B8399 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.15

#5B8399 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5B8399

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5B8399	#FFFFFF	#000000	##000000
##5B8399	1.00	4.08	5.15	5.15
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.15	21.00	1.00	1.00
##000000	5.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#79829A

Deuteranopia (green-blind)

#707B99

Tritanopia (blue-blind)

#44898A

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #5b8399;
/* rgb */ color: rgb(91, 131, 153);
/* oklch */ color: oklch(58.9% 0.056 233.0);

Tailwind

colors: {
  custom: {
    50: '#8ca7b7',
    500: '#5b8399',
    950: '#000000',
  },
}

SCSS

$custom: #5b8399;
$custom-light: #8ca7b7;
$custom-dark: #000000;

JSON

{
  "hex": "#5b8399",
  "rgb": {
    "r": 91,
    "g": 131,
    "b": 153
  },
  "hsl": {
    "h": 201.29,
    "s": 25.41,
    "l": 47.843
  },
  "oklch": {
    "l": 0.58883,
    "c": 0.05578,
    "h": 233
  },
  "luminance": 0.20757
}

Semantic roles & 50–950 ramp

primary

#5B8399

secondary

#B7A398

accent

#8766C2

background

#F8FAFB

surface

#F0F4F6

border

#CBCED0

text

#0C0F11

muted

#7D7F80

Preview Lab

Preview with #5B8399

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

Preview Lab → · Contrast checker → · Palette generator →