#33B9DB#33B9DB

#33B9DB is a light, vivid cyan. Relative luminance 0.405; OKLCH L 73.0% C 0.120 H 219.3°. Best body text is #000000 at 9.10:1 contrast (WCAG AA passes).

Color values

HEX	#33B9DB
RGB	rgb(51, 185, 219)
HSL	hsl(192, 70%, 53%)
HSV	hsv(192, 77%, 86%)
CMYK	cmyk(76.7%, 15.5%, 0%, 14.1%)
CIE-LAB	lab(69.83, -23.97, -27.19)
CIE-LCH	lch(69.83, 36.25, 228.60°)
OKLab	oklab(73.02% -0.0929 -0.076)
OKLCH	oklch(73.02% 0.12 219.3)
XYZ	xyz(31.4950, 40.5124, 73.1638)
Luminance	0.4052 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#33B9DB #DB5533

analogous

#33DBA9 #33B9DB #3365DB

triadic

#33B9DB #DB33B9 #B9DB33

tetradic

#33B9DB #A933DB #DB5533 #65DB33

square

#33B9DB #A933DB #DB5533 #65DB33

split-complementary

#33B9DB #DB3365 #DBA933

monochromatic

#16697D #1F94B1 #33B9DB #67CBE4 #9BDDED

Accessibility & contrast

On white

2.31

#33B9DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.10

#33B9DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #33B9DB

9.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##33B9DB	#FFFFFF	#000000	##000000
##33B9DB	1.00	2.31	9.10	9.10
#FFFFFF	2.31	1.00	21.00	21.00
#000000	9.10	21.00	1.00	1.00
##000000	9.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A4B4DD

Deuteranopia (green-blind)

#8DA4DB

Tritanopia (blue-blind)

#00C4C4

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #33b9db;
/* rgb */ color: rgb(51, 185, 219);
/* oklch */ color: oklch(73.0% 0.120 219.3);

Tailwind

colors: {
  custom: {
    50: '#84cee6',
    500: '#33b9db',
    950: '#000000',
  },
}

SCSS

$custom: #33b9db;
$custom-light: #84cee6;
$custom-dark: #000000;

JSON

{
  "hex": "#33b9db",
  "rgb": {
    "r": 51,
    "g": 185,
    "b": 219
  },
  "hsl": {
    "h": 192.143,
    "s": 70,
    "l": 52.941
  },
  "oklch": {
    "l": 0.73024,
    "c": 0.12007,
    "h": 219.3
  },
  "luminance": 0.40516
}

Semantic roles & 50–950 ramp

primary

#33B9DB

secondary

#D99F91

accent

#5F3BED

background

#F9FCFE

surface

#F1F9FC

border

#CBD2D5

text

#0D1316

muted

#7E8284

Preview Lab

Preview with #33B9DB

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

Preview Lab → · Contrast checker → · Palette generator →