#40A4CB#40A4CB

#40A4CB is a light, moderate cyan. Relative luminance 0.320; OKLCH L 67.7% C 0.108 H 227.6°. Best body text is #000000 at 7.39:1 contrast (WCAG AA passes).

Color values

HEX	#40A4CB
RGB	rgb(64, 164, 203)
HSL	hsl(197, 57%, 52%)
HSV	hsv(197, 68%, 80%)
CMYK	cmyk(68.5%, 19.2%, 0%, 20.4%)
CIE-LAB	lab(63.30, -16.56, -28.40)
CIE-LCH	lch(63.30, 32.87, 239.76°)
OKLab	oklab(67.67% -0.0726 -0.0795)
OKLCH	oklch(67.67% 0.108 227.6)
XYZ	xyz(26.1650, 31.9498, 61.2763)
Luminance	0.3195 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A4CB #CB6740

analogous

#40CBAD #40A4CB #405ECB

triadic

#40A4CB #CB40A4 #A4CB40

tetradic

#40A4CB #AD40CB #CB6740 #5ECB40

square

#40A4CB #AD40CB #CB6740 #5ECB40

split-complementary

#40A4CB #CB405E #CBAD40

monochromatic

#1F5A72 #2C81A2 #40A4CB #70BBD8 #A0D2E5

Accessibility & contrast

On white

2.84

#40A4CB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.39

#40A4CB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A4CB

7.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A4CB	#FFFFFF	#000000	##000000
##40A4CB	1.00	2.84	7.39	7.39
#FFFFFF	2.84	1.00	21.00	21.00
#000000	7.39	21.00	1.00	1.00
##000000	7.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8FA1CD

Deuteranopia (green-blind)

#7C93CB

Tritanopia (blue-blind)

#00AFB1

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #40a4cb;
/* rgb */ color: rgb(64, 164, 203);
/* oklch */ color: oklch(67.7% 0.108 227.6);

Tailwind

colors: {
  custom: {
    50: '#85bfdb',
    500: '#40a4cb',
    950: '#000000',
  },
}

SCSS

$custom: #40a4cb;
$custom-light: #85bfdb;
$custom-dark: #000000;

JSON

{
  "hex": "#40a4cb",
  "rgb": {
    "r": 64,
    "g": 164,
    "b": 203
  },
  "hsl": {
    "h": 196.835,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.6767,
    "c": 0.10765,
    "h": 227.6
  },
  "luminance": 0.31953
}

Semantic roles & 50–950 ramp

primary

#40A4CB

secondary

#D2A695

accent

#7247E0

background

#F8FBFD

surface

#F0F7FA

border

#CBD0D3

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #40A4CB

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

Preview Lab → · Contrast checker → · Palette generator →