#40BBDD#40BBDD

#40BBDD is a light, moderate cyan. Relative luminance 0.419; OKLCH L 73.9% C 0.116 H 220.2°. Best body text is #000000 at 9.37:1 contrast (WCAG AA passes).

Color values

HEX	#40BBDD
RGB	rgb(64, 187, 221)
HSL	hsl(193, 70%, 56%)
HSV	hsv(193, 71%, 87%)
CMYK	cmyk(71%, 15.4%, 0%, 13.3%)
CIE-LAB	lab(70.77, -22.81, -26.83)
CIE-LCH	lch(70.77, 35.22, 229.62°)
OKLab	oklab(73.88% -0.0887 -0.0749)
OKLCH	oklch(73.88% 0.116 220.2)
XYZ	xyz(32.9304, 41.8473, 74.7344)
Luminance	0.4185 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40BBDD #DD6240

analogous

#40DDB1 #40BBDD #406CDD

triadic

#40BBDD #DD40BB #BBDD40

tetradic

#40BBDD #B140DD #DD6240 #6CDD40

square

#40BBDD #B140DD #DD6240 #6CDD40

split-complementary

#40BBDD #DD406C #DDB140

monochromatic

#19718A #229CBE #40BBDD #74CDE6 #A8E0EF

Accessibility & contrast

On white

2.24

#40BBDD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.37

#40BBDD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40BBDD

9.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40BBDD	#FFFFFF	#000000	##000000
##40BBDD	1.00	2.24	9.37	9.37
#FFFFFF	2.24	1.00	21.00	21.00
#000000	9.37	21.00	1.00	1.00
##000000	9.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A6B6DF

Deuteranopia (green-blind)

#91A6DD

Tritanopia (blue-blind)

#00C6C6

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #40bbdd;
/* rgb */ color: rgb(64, 187, 221);
/* oklch */ color: oklch(73.9% 0.116 220.2);

Tailwind

colors: {
  custom: {
    50: '#89cfe7',
    500: '#40bbdd',
    950: '#000000',
  },
}

SCSS

$custom: #40bbdd;
$custom-light: #89cfe7;
$custom-dark: #000000;

JSON

{
  "hex": "#40bbdd",
  "rgb": {
    "r": 64,
    "g": 187,
    "b": 221
  },
  "hsl": {
    "h": 192.994,
    "s": 69.778,
    "l": 55.882
  },
  "oklch": {
    "l": 0.73875,
    "c": 0.1161,
    "h": 220.2
  },
  "luminance": 0.41851
}

Semantic roles & 50–950 ramp

primary

#40BBDD

secondary

#DDAA9C

accent

#623BED

background

#F9FCFE

surface

#F1F9FC

border

#CBD2D5

text

#0D1416

muted

#7E8284

Preview Lab

Preview with #40BBDD

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

Preview Lab → · Contrast checker → · Palette generator →