#55B9DB#55B9DB

#55B9DB is a light, moderate cyan. Relative luminance 0.417; OKLCH L 74.0% C 0.105 H 223.4°. Best body text is #000000 at 9.35:1 contrast (WCAG AA passes).

Color values

HEX	#55B9DB
RGB	rgb(85, 185, 219)
HSL	hsl(195, 65%, 60%)
HSV	hsv(195, 61%, 86%)
CMYK	cmyk(61.2%, 15.5%, 0%, 14.1%)
CIE-LAB	lab(70.69, -19.16, -25.80)
CIE-LCH	lch(70.69, 32.14, 233.39°)
OKLab	oklab(73.96% -0.0761 -0.0719)
OKLCH	oklch(73.96% 0.105 223.4)
XYZ	xyz(33.8764, 41.7403, 73.2755)
Luminance	0.4174 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#55B9DB #DB7755

analogous

#55DBBA #55B9DB #5576DB

triadic

#55B9DB #DB55B9 #B9DB55

tetradic

#55B9DB #BA55DB #DB7755 #76DB55

square

#55B9DB #BA55DB #DB7755 #76DB55

split-complementary

#55B9DB #DB5576 #DBBA55

monochromatic

#207896 #2AA0C8 #55B9DB #88CEE6 #BAE3F0

Accessibility & contrast

On white

2.25

#55B9DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.35

#55B9DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #55B9DB

9.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##55B9DB	#FFFFFF	#000000	##000000
##55B9DB	1.00	2.25	9.35	9.35
#FFFFFF	2.25	1.00	21.00	21.00
#000000	9.35	21.00	1.00	1.00
##000000	9.35	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A6B5DD

Deuteranopia (green-blind)

#92A7DB

Tritanopia (blue-blind)

#00C4C4

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #55b9db;
/* rgb */ color: rgb(85, 185, 219);
/* oklch */ color: oklch(74.0% 0.105 223.4);

Tailwind

colors: {
  custom: {
    50: '#91cee6',
    500: '#55b9db',
    950: '#000000',
  },
}

SCSS

$custom: #55b9db;
$custom-light: #91cee6;
$custom-dark: #000000;

JSON

{
  "hex": "#55b9db",
  "rgb": {
    "r": 85,
    "g": 185,
    "b": 219
  },
  "hsl": {
    "h": 195.224,
    "s": 65.049,
    "l": 59.608
  },
  "oklch": {
    "l": 0.73956,
    "c": 0.10467,
    "h": 223.4
  },
  "luminance": 0.41744
}

Semantic roles & 50–950 ramp

primary

#55B9DB

secondary

#E0B9AC

accent

#6A40E8

background

#F9FCFE

surface

#F2F9FC

border

#CCD2D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #55B9DB

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

Preview Lab → · Contrast checker → · Palette generator →