#40B9CC#40B9CC

#40B9CC is a light, moderate teal. Relative luminance 0.401; OKLCH L 72.7% C 0.108 H 209.9°. Best body text is #000000 at 9.03:1 contrast (WCAG AA passes).

Color values

HEX	#40B9CC
RGB	rgb(64, 185, 204)
HSL	hsl(188, 58%, 53%)
HSV	hsv(188, 69%, 80%)
CMYK	cmyk(68.6%, 9.3%, 0%, 20%)
CIE-LAB	lab(69.57, -27.06, -19.35)
CIE-LCH	lch(69.57, 33.27, 215.56°)
OKLab	oklab(72.72% -0.0934 -0.0538)
OKLCH	oklch(72.72% 0.108 209.9)
XYZ	xyz(30.3578, 40.1441, 63.2637)
Luminance	0.4015 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40B9CC #CC5340

analogous

#40CC99 #40B9CC #4073CC

triadic

#40B9CC #CC40B9 #B9CC40

tetradic

#40B9CC #9940CC #CC5340 #73CC40

square

#40B9CC #9940CC #CC5340 #73CC40

split-complementary

#40B9CC #CC4073 #CC9940

monochromatic

#1F6773 #2C93A3 #40B9CC #70CBD9 #A1DCE6

Accessibility & contrast

On white

2.33

#40B9CC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.03

#40B9CC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40B9CC

9.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40B9CC	#FFFFFF	#000000	##000000
##40B9CC	1.00	2.33	9.03	9.03
#FFFFFF	2.33	1.00	21.00	21.00
#000000	9.03	21.00	1.00	1.00
##000000	9.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A9B2CD

Deuteranopia (green-blind)

#95A4CC

Tritanopia (blue-blind)

#00C2BF

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #40b9cc;
/* rgb */ color: rgb(64, 185, 204);
/* oklch */ color: oklch(72.7% 0.108 209.9);

Tailwind

colors: {
  custom: {
    50: '#87cedb',
    500: '#40b9cc',
    950: '#000000',
  },
}

SCSS

$custom: #40b9cc;
$custom-light: #87cedb;
$custom-dark: #000000;

JSON

{
  "hex": "#40b9cc",
  "rgb": {
    "r": 64,
    "g": 185,
    "b": 204
  },
  "hsl": {
    "h": 188.143,
    "s": 57.851,
    "l": 52.549
  },
  "oklch": {
    "l": 0.72715,
    "c": 0.10777,
    "h": 209.9
  },
  "luminance": 0.40148
}

Semantic roles & 50–950 ramp

primary

#40B9CC

secondary

#D29E95

accent

#5C47E1

background

#F9FCFD

surface

#F1F9FB

border

#CBD2D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #40B9CC

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

Preview Lab → · Contrast checker → · Palette generator →