#3F90BB#3F90BB

#3F90BB is a light, moderate cyan. Relative luminance 0.246; OKLCH L 62.2% C 0.102 H 235.0°. Best body text is #000000 at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#3F90BB
RGB	rgb(63, 144, 187)
HSL	hsl(201, 50%, 49%)
HSV	hsv(201, 66%, 73%)
CMYK	cmyk(66.3%, 23%, 0%, 26.7%)
CIE-LAB	lab(56.67, -11.02, -29.66)
CIE-LCH	lch(56.67, 31.64, 249.61°)
OKLab	oklab(62.16% -0.0584 -0.0832)
OKLCH	oklch(62.16% 0.102 235)
XYZ	xyz(20.9893, 24.5889, 50.6440)
Luminance	0.2459 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F90BB #BB6A3F

analogous

#3FBBA8 #3F90BB #3F52BB

triadic

#3F90BB #BB3F90 #90BB3F

tetradic

#3F90BB #A83FBB #BB6A3F #52BB3F

square

#3F90BB #A83FBB #BB6A3F #52BB3F

split-complementary

#3F90BB #BB3F52 #BBA83F

monochromatic

#20495F #306D8D #3F90BB #6AABCD #98C5DC

Accessibility & contrast

On white

3.55

#3F90BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.92

#3F90BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F90BB

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F90BB	#FFFFFF	#000000	##000000
##3F90BB	1.00	3.55	5.92	5.92
#FFFFFF	3.55	1.00	21.00	21.00
#000000	5.92	21.00	1.00	1.00
##000000	5.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8FBD

Deuteranopia (green-blind)

#6A82BA

Tritanopia (blue-blind)

#009B9E

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #3f90bb;
/* rgb */ color: rgb(63, 144, 187);
/* oklch */ color: oklch(62.2% 0.102 235.0);

Tailwind

colors: {
  custom: {
    50: '#81b0cf',
    500: '#3f90bb',
    950: '#000000',
  },
}

SCSS

$custom: #3f90bb;
$custom-light: #81b0cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f90bb",
  "rgb": {
    "r": 63,
    "g": 144,
    "b": 187
  },
  "hsl": {
    "h": 200.806,
    "s": 49.6,
    "l": 49.02
  },
  "oklch": {
    "l": 0.62161,
    "c": 0.10167,
    "h": 235
  },
  "luminance": 0.24591
}

Semantic roles & 50–950 ramp

primary

#3F90BB

secondary

#C8A28E

accent

#7F4FD9

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B1014

muted

#7C7F82

Preview Lab

Preview with #3F90BB

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

Preview Lab → · Contrast checker → · Palette generator →