#3F90BE#3F90BE

#3F90BE is a light, moderate cyan. Relative luminance 0.247; OKLCH L 62.3% C 0.105 H 236.8°. Best body text is #000000 at 5.94:1 contrast (WCAG AA passes).

Color values

HEX	#3F90BE
RGB	rgb(63, 144, 190)
HSL	hsl(202, 50%, 50%)
HSV	hsv(202, 67%, 75%)
CMYK	cmyk(66.8%, 24.2%, 0%, 25.5%)
CIE-LAB	lab(56.80, -10.02, -31.17)
CIE-LCH	lch(56.80, 32.74, 252.17°)
OKLab	oklab(62.31% -0.0573 -0.0876)
OKLCH	oklch(62.31% 0.105 236.8)
XYZ	xyz(21.3138, 24.7187, 52.3531)
Luminance	0.2472 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F90BE #BE6D3F

analogous

#3FBEAD #3F90BE #3F51BE

triadic

#3F90BE #BE3F90 #90BE3F

tetradic

#3F90BE #AD3FBE #BE6D3F #51BE3F

square

#3F90BE #AD3FBE #BE6D3F #51BE3F

split-complementary

#3F90BE #BE3F51 #BEAD3F

monochromatic

#214A62 #306D90 #3F90BE #6CABCE #9AC5DD

Accessibility & contrast

On white

3.53

#3F90BE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.94

#3F90BE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F90BE

5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F90BE	#FFFFFF	#000000	##000000
##3F90BE	1.00	3.53	5.94	5.94
#FFFFFF	3.53	1.00	21.00	21.00
#000000	5.94	21.00	1.00	1.00
##000000	5.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A8FC0

Deuteranopia (green-blind)

#6983BD

Tritanopia (blue-blind)

#009CA0

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #3f90be;
/* rgb */ color: rgb(63, 144, 190);
/* oklch */ color: oklch(62.3% 0.105 236.8);

Tailwind

colors: {
  custom: {
    50: '#82b0d1',
    500: '#3f90be',
    950: '#000000',
  },
}

SCSS

$custom: #3f90be;
$custom-light: #82b0d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3f90be",
  "rgb": {
    "r": 63,
    "g": 144,
    "b": 190
  },
  "hsl": {
    "h": 201.732,
    "s": 50.198,
    "l": 49.608
  },
  "oklch": {
    "l": 0.62305,
    "c": 0.10467,
    "h": 236.8
  },
  "luminance": 0.24721
}

Semantic roles & 50–950 ramp

primary

#3F90BE

secondary

#C9A48F

accent

#814EDA

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #3F90BE

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

Preview Lab → · Contrast checker → · Palette generator →