#40B2DB#40B2DB

#40B2DB is a light, moderate cyan. Relative luminance 0.380; OKLCH L 71.7% C 0.116 H 226.1°. Best body text is #000000 at 8.61:1 contrast (WCAG AA passes).

Color values

HEX	#40B2DB
RGB	rgb(64, 178, 219)
HSL	hsl(196, 68%, 55%)
HSV	hsv(196, 71%, 86%)
CMYK	cmyk(70.8%, 18.7%, 0%, 14.1%)
CIE-LAB	lab(68.05, -18.80, -29.91)
CIE-LCH	lch(68.05, 35.33, 237.85°)
OKLab	oklab(71.68% -0.0806 -0.0838)
OKLCH	oklch(71.68% 0.116 226.1)
XYZ	xyz(30.8157, 38.0417, 72.7228)
Luminance	0.3805 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B2DB #DB6940

analogous

#40DBB6 #40B2DB #4064DB

triadic

#40B2DB #DB40B2 #B2DB40

tetradic

#40B2DB #B640DB #DB6940 #64DB40

square

#40B2DB #B640DB #DB6940 #64DB40

split-complementary

#40B2DB #DB4064 #DBB640

monochromatic

#196A87 #2393BB #40B2DB #73C7E5 #A7DCEE

Accessibility & contrast

On white

2.44

#40B2DB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.61

#40B2DB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B2DB

8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B2DB	#FFFFFF	#000000	##000000
##40B2DB	1.00	2.44	8.61	8.61
#FFFFFF	2.44	1.00	21.00	21.00
#000000	8.61	21.00	1.00	1.00
##000000	8.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9CAFDD

Deuteranopia (green-blind)

#879FDB

Tritanopia (blue-blind)

#00BEBF

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #40b2db;
/* rgb */ color: rgb(64, 178, 219);
/* oklch */ color: oklch(71.7% 0.116 226.1);

Tailwind

colors: {
  custom: {
    50: '#88c9e6',
    500: '#40b2db',
    950: '#000000',
  },
}

SCSS

$custom: #40b2db;
$custom-light: #88c9e6;
$custom-dark: #000000;

JSON

{
  "hex": "#40b2db",
  "rgb": {
    "r": 64,
    "g": 178,
    "b": 219
  },
  "hsl": {
    "h": 195.871,
    "s": 68.282,
    "l": 55.49
  },
  "oklch": {
    "l": 0.71675,
    "c": 0.11627,
    "h": 226.1
  },
  "luminance": 0.38045
}

Semantic roles & 50–950 ramp

primary

#40B2DB

secondary

#DCAC9B

accent

#6B3DEB

background

#F9FCFE

surface

#F1F8FC

border

#CBD1D5

text

#0D1316

muted

#7E8284

Preview Lab

Preview with #40B2DB

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

Preview Lab → · Contrast checker → · Palette generator →