#3F90BA#3F90BA

#3F90BA is a light, moderate cyan. Relative luminance 0.245; OKLCH L 62.1% C 0.101 H 234.3°. Best body text is #000000 at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#3F90BA
RGB	rgb(63, 144, 186)
HSL	hsl(200, 49%, 49%)
HSV	hsv(200, 66%, 73%)
CMYK	cmyk(66.1%, 22.6%, 0%, 27.1%)
CIE-LAB	lab(56.63, -11.36, -29.16)
CIE-LCH	lch(56.63, 31.29, 248.72°)
OKLab	oklab(62.11% -0.0587 -0.0818)
OKLCH	oklch(62.11% 0.101 234.3)
XYZ	xyz(20.8826, 24.5463, 50.0822)
Luminance	0.2455 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F90BA #BA693F

analogous

#3FBAA7 #3F90BA #3F53BA

triadic

#3F90BA #BA3F90 #90BA3F

tetradic

#3F90BA #A73FBA #BA693F #53BA3F

square

#3F90BA #A73FBA #BA693F #53BA3F

split-complementary

#3F90BA #BA3F53 #BAA73F

monochromatic

#20495F #306D8C #3F90BA #6AABCC #97C5DC

Accessibility & contrast

On white

3.55

#3F90BA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.91

#3F90BA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F90BA

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F90BA	#FFFFFF	#000000	##000000
##3F90BA	1.00	3.55	5.91	5.91
#FFFFFF	3.55	1.00	21.00	21.00
#000000	5.91	21.00	1.00	1.00
##000000	5.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C8FBC

Deuteranopia (green-blind)

#6B82B9

Tritanopia (blue-blind)

#009B9E

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #3f90ba;
/* rgb */ color: rgb(63, 144, 186);
/* oklch */ color: oklch(62.1% 0.101 234.3);

Tailwind

colors: {
  custom: {
    50: '#81b0cf',
    500: '#3f90ba',
    950: '#000000',
  },
}

SCSS

$custom: #3f90ba;
$custom-light: #81b0cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f90ba",
  "rgb": {
    "r": 63,
    "g": 144,
    "b": 186
  },
  "hsl": {
    "h": 200.488,
    "s": 49.398,
    "l": 48.824
  },
  "oklch": {
    "l": 0.62114,
    "c": 0.10069,
    "h": 234.3
  },
  "luminance": 0.24548
}

Semantic roles & 50–950 ramp

primary

#3F90BA

secondary

#C8A18D

accent

#7E4FD9

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3F90BA

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

Preview Lab → · Contrast checker → · Palette generator →