#3F90CC#3F90CC

#3F90CC is a light, moderate cyan. Relative luminance 0.254; OKLCH L 63.0% C 0.120 H 243.9°. Best body text is #000000 at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#3F90CC
RGB	rgb(63, 144, 204)
HSL	hsl(206, 58%, 52%)
HSV	hsv(206, 69%, 80%)
CMYK	cmyk(69.1%, 29.4%, 0%, 20%)
CIE-LAB	lab(57.42, -5.28, -38.10)
CIE-LCH	lch(57.42, 38.47, 262.11°)
OKLab	oklab(63.01% -0.0528 -0.1077)
OKLCH	oklch(63.01% 0.12 243.9)
XYZ	xyz(22.9181, 25.3604, 60.8023)
Luminance	0.2536 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F90CC #CC7B3F

analogous

#3FCCC2 #3F90CC #3F49CC

triadic

#3F90CC #CC3F90 #90CC3F

tetradic

#3F90CC #C23FCC #CC7B3F #49CC3F

square

#3F90CC #C23FCC #CC7B3F #49CC3F

split-complementary

#3F90CC #CC3F49 #CCC23F

monochromatic

#1E4F72 #2B70A3 #3F90CC #6FACD9 #A0C8E6

Accessibility & contrast

On white

3.46

#3F90CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.07

#3F90CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F90CC

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F90CC	#FFFFFF	#000000	##000000
##3F90CC	1.00	3.46	6.07	6.07
#FFFFFF	3.46	1.00	21.00	21.00
#000000	6.07	21.00	1.00	1.00
##000000	6.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7591CF

Deuteranopia (green-blind)

#6184CB

Tritanopia (blue-blind)

#009FA5

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #3f90cc;
/* rgb */ color: rgb(63, 144, 204);
/* oklch */ color: oklch(63.0% 0.120 243.9);

Tailwind

colors: {
  custom: {
    50: '#84b0dc',
    500: '#3f90cc',
    950: '#000000',
  },
}

SCSS

$custom: #3f90cc;
$custom-light: #84b0dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3f90cc",
  "rgb": {
    "r": 63,
    "g": 144,
    "b": 204
  },
  "hsl": {
    "h": 205.532,
    "s": 58.025,
    "l": 52.353
  },
  "oklch": {
    "l": 0.63005,
    "c": 0.11989,
    "h": 243.9
  },
  "luminance": 0.25363
}

Semantic roles & 50–950 ramp

primary

#3F90CC

secondary

#D2AF95

accent

#8847E1

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3F90CC

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

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