#3B9FD0#3B9FD0

#3B9FD0 is a light, moderate cyan. Relative luminance 0.303; OKLCH L 66.6% C 0.116 H 233.9°. Best body text is #000000 at 7.06:1 contrast (WCAG AA passes).

Color values

HEX	#3B9FD0
RGB	rgb(59, 159, 208)
HSL	hsl(200, 61%, 52%)
HSV	hsv(200, 72%, 82%)
CMYK	cmyk(71.6%, 23.6%, 0%, 18.4%)
CIE-LAB	lab(61.89, -12.92, -33.37)
CIE-LCH	lch(61.89, 35.79, 248.84°)
OKLab	oklab(66.57% -0.0685 -0.0939)
OKLCH	oklch(66.57% 0.116 233.9)
XYZ	xyz(25.5824, 30.2772, 64.1581)
Luminance	0.3028 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B9FD0 #D06C3B

analogous

#3BD0B7 #3B9FD0 #3B54D0

triadic

#3B9FD0 #D03B9F #9FD03B

tetradic

#3B9FD0 #B73BD0 #D06C3B #54D03B

square

#3B9FD0 #B73BD0 #D06C3B #54D03B

split-complementary

#3B9FD0 #D03B54 #D0B73B

monochromatic

#1C5775 #287CA6 #3B9FD0 #6CB7DC #9ECFE8

Accessibility & contrast

On white

2.98

#3B9FD0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.06

#3B9FD0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3B9FD0

7.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B9FD0	#FFFFFF	#000000	##000000
##3B9FD0	1.00	2.98	7.06	7.06
#FFFFFF	2.98	1.00	21.00	21.00
#000000	7.06	21.00	1.00	1.00
##000000	7.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#879ED2

Deuteranopia (green-blind)

#738FCF

Tritanopia (blue-blind)

#00ACB0

Achromatopsia (no color)

#969696

Design tokens & code

CSS

--color: #3b9fd0;
/* rgb */ color: rgb(59, 159, 208);
/* oklch */ color: oklch(66.6% 0.116 233.9);

Tailwind

colors: {
  custom: {
    50: '#84bbde',
    500: '#3b9fd0',
    950: '#000000',
  },
}

SCSS

$custom: #3b9fd0;
$custom-light: #84bbde;
$custom-dark: #000000;

JSON

{
  "hex": "#3b9fd0",
  "rgb": {
    "r": 59,
    "g": 159,
    "b": 208
  },
  "hsl": {
    "h": 199.732,
    "s": 61.317,
    "l": 52.353
  },
  "oklch": {
    "l": 0.66575,
    "c": 0.11621,
    "h": 233.9
  },
  "luminance": 0.3028
}

Semantic roles & 50–950 ramp

primary

#3B9FD0

secondary

#D4A893

accent

#7843E4

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #3B9FD0

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

Preview Lab → · Contrast checker → · Palette generator →