#40A5CB#40A5CB

#40A5CB is a light, moderate cyan. Relative luminance 0.323; OKLCH L 67.9% C 0.107 H 226.7°. Best body text is #000000 at 7.46:1 contrast (WCAG AA passes).

Color values

HEX	#40A5CB
RGB	rgb(64, 165, 203)
HSL	hsl(196, 57%, 52%)
HSV	hsv(196, 68%, 80%)
CMYK	cmyk(68.5%, 18.7%, 0%, 20.4%)
CIE-LAB	lab(63.60, -17.09, -27.94)
CIE-LCH	lch(63.60, 32.75, 238.55°)
OKLab	oklab(67.91% -0.0736 -0.0782)
OKLCH	oklch(67.91% 0.107 226.7)
XYZ	xyz(26.3446, 32.3091, 61.3362)
Luminance	0.3231 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A5CB #CB6640

analogous

#40CBAC #40A5CB #405FCB

triadic

#40A5CB #CB40A5 #A5CB40

tetradic

#40A5CB #AC40CB #CB6640 #5FCB40

square

#40A5CB #AC40CB #CB6640 #5FCB40

split-complementary

#40A5CB #CB405F #CBAC40

monochromatic

#1F5B72 #2C82A2 #40A5CB #70BCD8 #A0D2E5

Accessibility & contrast

On white

2.81

#40A5CB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.46

#40A5CB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A5CB

7.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A5CB	#FFFFFF	#000000	##000000
##40A5CB	1.00	2.81	7.46	7.46
#FFFFFF	2.81	1.00	21.00	21.00
#000000	7.46	21.00	1.00	1.00
##000000	7.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#91A2CD

Deuteranopia (green-blind)

#7D94CB

Tritanopia (blue-blind)

#00B0B1

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #40a5cb;
/* rgb */ color: rgb(64, 165, 203);
/* oklch */ color: oklch(67.9% 0.107 226.7);

Tailwind

colors: {
  custom: {
    50: '#85bfdb',
    500: '#40a5cb',
    950: '#000000',
  },
}

SCSS

$custom: #40a5cb;
$custom-light: #85bfdb;
$custom-dark: #000000;

JSON

{
  "hex": "#40a5cb",
  "rgb": {
    "r": 64,
    "g": 165,
    "b": 203
  },
  "hsl": {
    "h": 196.403,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.67906,
    "c": 0.10738,
    "h": 226.7
  },
  "luminance": 0.32312
}

Semantic roles & 50–950 ramp

primary

#40A5CB

secondary

#D2A695

accent

#7147E0

background

#F8FBFD

surface

#F0F7FA

border

#CBD0D3

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #40A5CB

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

Preview Lab → · Contrast checker → · Palette generator →