#33819B#33819B

#33819B is a mid, moderate cyan. Relative luminance 0.188; OKLCH L 56.6% C 0.085 H 223.5°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#33819B
RGB	rgb(51, 129, 155)
HSL	hsl(195, 50%, 40%)
HSV	hsv(195, 67%, 61%)
CMYK	cmyk(67.1%, 16.8%, 0%, 39.2%)
CIE-LAB	lab(50.42, -15.30, -20.95)
CIE-LCH	lch(50.42, 25.94, 233.86°)
OKLab	oklab(56.63% -0.0616 -0.0585)
OKLCH	oklch(56.63% 0.085 223.5)
XYZ	xyz(15.1295, 18.7693, 33.8295)
Luminance	0.1877 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#33819B #9B4D33

analogous

#339B81 #33819B #334D9B

triadic

#33819B #9B3381 #819B33

tetradic

#33819B #81339B #9B4D33 #4D9B33

square

#33819B #81339B #9B4D33 #4D9B33

split-complementary

#33819B #9B334D #9B8133

monochromatic

#15343F #245B6D #33819B #48A4C3 #76BBD2

Accessibility & contrast

On white

4.42

#33819B on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#33819B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #33819B

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##33819B	#FFFFFF	#000000	##000000
##33819B	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#727E9C

Deuteranopia (green-blind)

#64739B

Tritanopia (blue-blind)

#008989

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #33819b;
/* rgb */ color: rgb(51, 129, 155);
/* oklch */ color: oklch(56.6% 0.085 223.5);

Tailwind

colors: {
  custom: {
    50: '#77a5b8',
    500: '#33819b',
    950: '#000000',
  },
}

SCSS

$custom: #33819b;
$custom-light: #77a5b8;
$custom-dark: #000000;

JSON

{
  "hex": "#33819b",
  "rgb": {
    "r": 51,
    "g": 129,
    "b": 155
  },
  "hsl": {
    "h": 195,
    "s": 50.485,
    "l": 40.392
  },
  "oklch": {
    "l": 0.56631,
    "c": 0.08497,
    "h": 223.5
  },
  "luminance": 0.18771
}

Semantic roles & 50–950 ramp

primary

#33819B

secondary

#BA826F

accent

#714EDA

background

#F7FAFB

surface

#EEF4F6

border

#C9CED0

text

#0A0F11

muted

#7C7F80

Preview Lab

Preview with #33819B

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

Preview Lab → · Contrast checker → · Palette generator →