#3B9ECD#3B9ECD

#3B9ECD is a light, moderate cyan. Relative luminance 0.298; OKLCH L 66.2% C 0.114 H 233.0°. Best body text is #000000 at 6.96:1 contrast (WCAG AA passes).

Color values

HEX	#3B9ECD
RGB	rgb(59, 158, 205)
HSL	hsl(199, 59%, 52%)
HSV	hsv(199, 71%, 80%)
CMYK	cmyk(71.2%, 22.9%, 0%, 19.6%)
CIE-LAB	lab(61.47, -13.37, -32.36)
CIE-LCH	lch(61.47, 35.01, 247.54°)
OKLab	oklab(66.2% -0.0685 -0.0909)
OKLCH	oklch(66.2% 0.114 233)
XYZ	xyz(25.0456, 29.7885, 62.1755)
Luminance	0.2979 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B9ECD #CD6A3B

analogous

#3BCDB3 #3B9ECD #3B55CD

triadic

#3B9ECD #CD3B9E #9ECD3B

tetradic

#3B9ECD #B33BCD #CD6A3B #55CD3B

square

#3B9ECD #B33BCD #CD6A3B #55CD3B

split-complementary

#3B9ECD #CD3B55 #CDB33B

monochromatic

#1D5671 #297BA2 #3B9ECD #6CB6D9 #9DCEE6

Accessibility & contrast

On white

3.02

#3B9ECD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.96

#3B9ECD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3B9ECD

6.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B9ECD	#FFFFFF	#000000	##000000
##3B9ECD	1.00	3.02	6.96	6.96
#FFFFFF	3.02	1.00	21.00	21.00
#000000	6.96	21.00	1.00	1.00
##000000	6.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#879CCF

Deuteranopia (green-blind)

#738ECC

Tritanopia (blue-blind)

#00ABAE

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #3b9ecd;
/* rgb */ color: rgb(59, 158, 205);
/* oklch */ color: oklch(66.2% 0.114 233.0);

Tailwind

colors: {
  custom: {
    50: '#83badc',
    500: '#3b9ecd',
    950: '#000000',
  },
}

SCSS

$custom: #3b9ecd;
$custom-light: #83badc;
$custom-dark: #000000;

JSON

{
  "hex": "#3b9ecd",
  "rgb": {
    "r": 59,
    "g": 158,
    "b": 205
  },
  "hsl": {
    "h": 199.315,
    "s": 59.35,
    "l": 51.765
  },
  "oklch": {
    "l": 0.66198,
    "c": 0.11389,
    "h": 233
  },
  "luminance": 0.29791
}

Semantic roles & 50–950 ramp

primary

#3B9ECD

secondary

#D2A692

accent

#7845E3

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #3B9ECD

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

Preview Lab → · Contrast checker → · Palette generator →