#3F9DD0#3F9DD0

#3F9DD0 is a light, moderate cyan. Relative luminance 0.297; OKLCH L 66.2% C 0.116 H 236.2°. Best body text is #000000 at 6.94:1 contrast (WCAG AA passes).

Color values

HEX	#3F9DD0
RGB	rgb(63, 157, 208)
HSL	hsl(201, 61%, 53%)
HSV	hsv(201, 70%, 82%)
CMYK	cmyk(69.7%, 24.5%, 0%, 18.4%)
CIE-LAB	lab(61.41, -11.25, -34.11)
CIE-LCH	lch(61.41, 35.92, 251.75°)
OKLab	oklab(66.22% -0.0644 -0.096)
OKLCH	oklch(66.22% 0.116 236.2)
XYZ	xyz(25.4876, 29.7219, 64.0559)
Luminance	0.2973 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F9DD0 #D0723F

analogous

#3FD0BA #3F9DD0 #3F55D0

triadic

#3F9DD0 #D03F9D #9DD03F

tetradic

#3F9DD0 #BA3FD0 #D0723F #55D03F

square

#3F9DD0 #BA3FD0 #D0723F #55D03F

split-complementary

#3F9DD0 #D03F55 #D0BA3F

monochromatic

#1D5877 #297CA9 #3F9DD0 #70B6DC #A1CFE8

Accessibility & contrast

On white

3.02

#3F9DD0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.94

#3F9DD0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F9DD0

6.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F9DD0	#FFFFFF	#000000	##000000
##3F9DD0	1.00	3.02	6.94	6.94
#FFFFFF	3.02	1.00	21.00	21.00
#000000	6.94	21.00	1.00	1.00
##000000	6.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#859CD2

Deuteranopia (green-blind)

#718ECF

Tritanopia (blue-blind)

#00AAAE

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #3f9dd0;
/* rgb */ color: rgb(63, 157, 208);
/* oklch */ color: oklch(66.2% 0.116 236.2);

Tailwind

colors: {
  custom: {
    50: '#85b9de',
    500: '#3f9dd0',
    950: '#000000',
  },
}

SCSS

$custom: #3f9dd0;
$custom-light: #85b9de;
$custom-dark: #000000;

JSON

{
  "hex": "#3f9dd0",
  "rgb": {
    "r": 63,
    "g": 157,
    "b": 208
  },
  "hsl": {
    "h": 201.103,
    "s": 60.669,
    "l": 53.137
  },
  "oklch": {
    "l": 0.66225,
    "c": 0.11557,
    "h": 236.2
  },
  "luminance": 0.29725
}

Semantic roles & 50–950 ramp

primary

#3F9DD0

secondary

#D5AC96

accent

#7C44E4

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1115

muted

#7D8083

Preview Lab

Preview with #3F9DD0

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

Preview Lab → · Contrast checker → · Palette generator →