#40BCD8#40BCD8

#40BCD8 is a light, moderate cyan. Relative luminance 0.420; OKLCH L 73.9% C 0.113 H 216.1°. Best body text is #000000 at 9.40:1 contrast (WCAG AA passes).

Color values

HEX	#40BCD8
RGB	rgb(64, 188, 216)
HSL	hsl(191, 66%, 55%)
HSV	hsv(191, 70%, 85%)
CMYK	cmyk(70.4%, 13%, 0%, 15.3%)
CIE-LAB	lab(70.88, -24.88, -23.93)
CIE-LCH	lch(70.88, 34.52, 223.88°)
OKLab	oklab(73.91% -0.0916 -0.0667)
OKLCH	oklch(73.91% 0.113 216.1)
XYZ	xyz(32.4870, 42.0105, 71.3491)
Luminance	0.4201 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40BCD8 #D85C40

analogous

#40D8A8 #40BCD8 #4070D8

triadic

#40BCD8 #D840BC #BCD840

tetradic

#40BCD8 #A840D8 #D85C40 #70D840

square

#40BCD8 #A840D8 #D85C40 #70D840

split-complementary

#40BCD8 #D84070 #D8A840

monochromatic

#1B7083 #259BB6 #40BCD8 #73CEE2 #A6E0ED

Accessibility & contrast

On white

2.23

#40BCD8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.40

#40BCD8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40BCD8

9.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40BCD8	#FFFFFF	#000000	##000000
##40BCD8	1.00	2.23	9.40	9.40
#FFFFFF	2.23	1.00	21.00	21.00
#000000	9.40	21.00	1.00	1.00
##000000	9.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A9B6DA

Deuteranopia (green-blind)

#94A7D8

Tritanopia (blue-blind)

#00C6C5

Achromatopsia (no color)

#ADADAD

Design tokens & code

CSS

--color: #40bcd8;
/* rgb */ color: rgb(64, 188, 216);
/* oklch */ color: oklch(73.9% 0.113 216.1);

Tailwind

colors: {
  custom: {
    50: '#88d0e4',
    500: '#40bcd8',
    950: '#000000',
  },
}

SCSS

$custom: #40bcd8;
$custom-light: #88d0e4;
$custom-dark: #000000;

JSON

{
  "hex": "#40bcd8",
  "rgb": {
    "r": 64,
    "g": 188,
    "b": 216
  },
  "hsl": {
    "h": 191.053,
    "s": 66.087,
    "l": 54.902
  },
  "oklch": {
    "l": 0.73905,
    "c": 0.1133,
    "h": 216.1
  },
  "luminance": 0.42014
}

Semantic roles & 50–950 ramp

primary

#40BCD8

secondary

#DAA69A

accent

#5E3FE9

background

#F9FCFD

surface

#F1F9FB

border

#CBD2D4

text

#0D1415

muted

#7E8283

Preview Lab

Preview with #40BCD8

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

Preview Lab → · Contrast checker → · Palette generator →