#40A8CB#40A8CB

#40A8CB is a light, moderate cyan. Relative luminance 0.334; OKLCH L 68.6% C 0.107 H 224.1°. Best body text is #000000 at 7.68:1 contrast (WCAG AA passes).

Color values

HEX	#40A8CB
RGB	rgb(64, 168, 203)
HSL	hsl(195, 57%, 52%)
HSV	hsv(195, 68%, 80%)
CMYK	cmyk(68.5%, 17.2%, 0%, 20.4%)
CIE-LAB	lab(64.49, -18.68, -26.57)
CIE-LCH	lch(64.49, 32.48, 234.89°)
OKLab	oklab(68.62% -0.0766 -0.0743)
OKLCH	oklch(68.62% 0.107 224.1)
XYZ	xyz(26.8921, 33.4041, 61.5187)
Luminance	0.3341 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A8CB #CB6340

analogous

#40CBA9 #40A8CB #4062CB

triadic

#40A8CB #CB40A8 #A8CB40

tetradic

#40A8CB #A940CB #CB6340 #62CB40

square

#40A8CB #A940CB #CB6340 #62CB40

split-complementary

#40A8CB #CB4062 #CBA940

monochromatic

#1F5D72 #2C84A2 #40A8CB #70BED8 #A0D4E5

Accessibility & contrast

On white

2.73

#40A8CB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.68

#40A8CB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A8CB

7.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A8CB	#FFFFFF	#000000	##000000
##40A8CB	1.00	2.73	7.68	7.68
#FFFFFF	2.73	1.00	21.00	21.00
#000000	7.68	21.00	1.00	1.00
##000000	7.68	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#94A4CD

Deuteranopia (green-blind)

#8196CB

Tritanopia (blue-blind)

#00B3B3

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #40a8cb;
/* rgb */ color: rgb(64, 168, 203);
/* oklch */ color: oklch(68.6% 0.107 224.1);

Tailwind

colors: {
  custom: {
    50: '#85c2db',
    500: '#40a8cb',
    950: '#000000',
  },
}

SCSS

$custom: #40a8cb;
$custom-light: #85c2db;
$custom-dark: #000000;

JSON

{
  "hex": "#40a8cb",
  "rgb": {
    "r": 64,
    "g": 168,
    "b": 203
  },
  "hsl": {
    "h": 195.108,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.68618,
    "c": 0.10671,
    "h": 224.1
  },
  "luminance": 0.33407
}

Semantic roles & 50–950 ramp

primary

#40A8CB

secondary

#D2A495

accent

#6E47E0

background

#F8FBFD

surface

#F0F7FA

border

#CBD0D3

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #40A8CB

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

Preview Lab → · Contrast checker → · Palette generator →