#3F90D1#3F90D1

#3F90D1 is a light, vivid cyan. Relative luminance 0.256; OKLCH L 63.3% C 0.126 H 245.9°. Best body text is #000000 at 6.12:1 contrast (WCAG AA passes).

Color values

HEX	#3F90D1
RGB	rgb(63, 144, 209)
HSL	hsl(207, 61%, 53%)
HSV	hsv(207, 70%, 82%)
CMYK	cmyk(69.9%, 31.1%, 0%, 18%)
CIE-LAB	lab(57.66, -3.56, -40.55)
CIE-LCH	lch(57.66, 40.70, 264.99°)
OKLab	oklab(63.27% -0.0513 -0.1148)
OKLCH	oklch(63.27% 0.126 245.9)
XYZ	xyz(23.5274, 25.6042, 64.0114)
Luminance	0.2561 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F90D1 #D1803F

analogous

#3FD1C9 #3F90D1 #3F47D1

triadic

#3F90D1 #D13F90 #90D13F

tetradic

#3F90D1 #C93FD1 #D1803F #47D13F

square

#3F90D1 #C93FD1 #D1803F #47D13F

split-complementary

#3F90D1 #D13F47 #D1C93F

monochromatic

#1D5079 #2970AA #3F90D1 #70ADDD #A2C9E9

Accessibility & contrast

On white

3.43

#3F90D1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.12

#3F90D1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F90D1

6.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F90D1	#FFFFFF	#000000	##000000
##3F90D1	1.00	3.43	6.12	6.12
#FFFFFF	3.43	1.00	21.00	21.00
#000000	6.12	21.00	1.00	1.00
##000000	6.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7392D4

Deuteranopia (green-blind)

#5E84D0

Tritanopia (blue-blind)

#00A0A7

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #3f90d1;
/* rgb */ color: rgb(63, 144, 209);
/* oklch */ color: oklch(63.3% 0.126 245.9);

Tailwind

colors: {
  custom: {
    50: '#85b0df',
    500: '#3f90d1',
    950: '#000000',
  },
}

SCSS

$custom: #3f90d1;
$custom-light: #85b0df;
$custom-dark: #000000;

JSON

{
  "hex": "#3f90d1",
  "rgb": {
    "r": 63,
    "g": 144,
    "b": 209
  },
  "hsl": {
    "h": 206.712,
    "s": 61.345,
    "l": 53.333
  },
  "oklch": {
    "l": 0.63267,
    "c": 0.1257,
    "h": 245.9
  },
  "luminance": 0.25607
}

Semantic roles & 50–950 ramp

primary

#3F90D1

secondary

#D5B297

accent

#8B43E4

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3F90D1

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

Preview Lab → · Contrast checker → · Palette generator →