#3F9FD0#3F9FD0

#3F9FD0 is a light, moderate cyan. Relative luminance 0.304; OKLCH L 66.7% C 0.115 H 234.6°. Best body text is #000000 at 7.08:1 contrast (WCAG AA passes).

Color values

HEX	#3F9FD0
RGB	rgb(63, 159, 208)
HSL	hsl(200, 61%, 53%)
HSV	hsv(200, 70%, 82%)
CMYK	cmyk(69.7%, 23.6%, 0%, 18.4%)
CIE-LAB	lab(62.00, -12.35, -33.20)
CIE-LCH	lch(62.00, 35.42, 249.59°)
OKLab	oklab(66.69% -0.0664 -0.0933)
OKLCH	oklch(66.69% 0.115 234.6)
XYZ	xyz(25.8287, 30.4042, 64.1696)
Luminance	0.3041 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F9FD0 #D0703F

analogous

#3FD0B8 #3F9FD0 #3F56D0

triadic

#3F9FD0 #D03F9F #9FD03F

tetradic

#3F9FD0 #B83FD0 #D0703F #56D03F

square

#3F9FD0 #B83FD0 #D0703F #56D03F

split-complementary

#3F9FD0 #D03F56 #D0B83F

monochromatic

#1D5977 #297EA9 #3F9FD0 #70B8DC #A1D0E8

Accessibility & contrast

On white

2.97

#3F9FD0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.08

#3F9FD0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3F9FD0

7.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F9FD0	#FFFFFF	#000000	##000000
##3F9FD0	1.00	2.97	7.08	7.08
#FFFFFF	2.97	1.00	21.00	21.00
#000000	7.08	21.00	1.00	1.00
##000000	7.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#879ED2

Deuteranopia (green-blind)

#7390CF

Tritanopia (blue-blind)

#00ACB0

Achromatopsia (no color)

#969696

Design tokens & code

CSS

--color: #3f9fd0;
/* rgb */ color: rgb(63, 159, 208);
/* oklch */ color: oklch(66.7% 0.115 234.6);

Tailwind

colors: {
  custom: {
    50: '#85bbde',
    500: '#3f9fd0',
    950: '#000000',
  },
}

SCSS

$custom: #3f9fd0;
$custom-light: #85bbde;
$custom-dark: #000000;

JSON

{
  "hex": "#3f9fd0",
  "rgb": {
    "r": 63,
    "g": 159,
    "b": 208
  },
  "hsl": {
    "h": 200.276,
    "s": 60.669,
    "l": 53.137
  },
  "oklch": {
    "l": 0.66692,
    "c": 0.11451,
    "h": 234.6
  },
  "luminance": 0.30407
}

Semantic roles & 50–950 ramp

primary

#3F9FD0

secondary

#D5AB96

accent

#7A44E4

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #3F9FD0

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

Preview Lab → · Contrast checker → · Palette generator →