#40A9CB#40A9CB

#40A9CB is a light, moderate cyan. Relative luminance 0.338; OKLCH L 68.9% C 0.107 H 223.2°. Best body text is #000000 at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#40A9CB
RGB	rgb(64, 169, 203)
HSL	hsl(195, 57%, 52%)
HSV	hsv(195, 68%, 80%)
CMYK	cmyk(68.5%, 16.7%, 0%, 20.4%)
CIE-LAB	lab(64.78, -19.21, -26.11)
CIE-LCH	lch(64.78, 32.42, 233.67°)
OKLab	oklab(68.86% -0.0776 -0.073)
OKLCH	oklch(68.86% 0.107 223.2)
XYZ	xyz(27.0774, 33.7747, 61.5805)
Luminance	0.3378 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40A9CB #CB6240

analogous

#40CBA7 #40A9CB #4064CB

triadic

#40A9CB #CB40A9 #A9CB40

tetradic

#40A9CB #A740CB #CB6240 #64CB40

square

#40A9CB #A740CB #CB6240 #64CB40

split-complementary

#40A9CB #CB4064 #CBA740

monochromatic

#1F5D72 #2C85A2 #40A9CB #70BFD8 #A0D4E5

Accessibility & contrast

On white

2.71

#40A9CB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.76

#40A9CB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #40A9CB

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40A9CB	#FFFFFF	#000000	##000000
##40A9CB	1.00	2.71	7.76	7.76
#FFFFFF	2.71	1.00	21.00	21.00
#000000	7.76	21.00	1.00	1.00
##000000	7.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#96A5CD

Deuteranopia (green-blind)

#8297CB

Tritanopia (blue-blind)

#00B3B4

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #40a9cb;
/* rgb */ color: rgb(64, 169, 203);
/* oklch */ color: oklch(68.9% 0.107 223.2);

Tailwind

colors: {
  custom: {
    50: '#85c2db',
    500: '#40a9cb',
    950: '#000000',
  },
}

SCSS

$custom: #40a9cb;
$custom-light: #85c2db;
$custom-dark: #000000;

JSON

{
  "hex": "#40a9cb",
  "rgb": {
    "r": 64,
    "g": 169,
    "b": 203
  },
  "hsl": {
    "h": 194.676,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.68855,
    "c": 0.10655,
    "h": 223.2
  },
  "luminance": 0.33778
}

Semantic roles & 50–950 ramp

primary

#40A9CB

secondary

#D2A495

accent

#6D47E0

background

#F8FBFD

surface

#F0F7FA

border

#CBD0D3

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #40A9CB

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

Preview Lab → · Contrast checker → · Palette generator →