#3F90CF#3F90CF

#3F90CF is a light, vivid cyan. Relative luminance 0.255; OKLCH L 63.2% C 0.123 H 245.1°. Best body text is #000000 at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#3F90CF
RGB	rgb(63, 144, 207)
HSL	hsl(206, 60%, 53%)
HSV	hsv(206, 70%, 81%)
CMYK	cmyk(69.6%, 30.4%, 0%, 18.8%)
CIE-LAB	lab(57.56, -4.25, -39.57)
CIE-LCH	lch(57.56, 39.80, 263.87°)
OKLab	oklab(63.16% -0.0518 -0.1119)
OKLCH	oklch(63.16% 0.123 245.1)
XYZ	xyz(23.2814, 25.5057, 62.7155)
Luminance	0.2551 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F90CF #CF7E3F

analogous

#3FCFC6 #3F90CF #3F48CF

triadic

#3F90CF #CF3F90 #90CF3F

tetradic

#3F90CF #C63FCF #CF7E3F #48CF3F

square

#3F90CF #C63FCF #CF7E3F #48CF3F

split-complementary

#3F90CF #CF3F48 #CFC63F

monochromatic

#1E4F76 #2A70A7 #3F90CF #70ACDB #A1C9E7

Accessibility & contrast

On white

3.44

#3F90CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.10

#3F90CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F90CF

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F90CF	#FFFFFF	#000000	##000000
##3F90CF	1.00	3.44	6.10	6.10
#FFFFFF	3.44	1.00	21.00	21.00
#000000	6.10	21.00	1.00	1.00
##000000	6.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7492D2

Deuteranopia (green-blind)

#6084CE

Tritanopia (blue-blind)

#009FA6

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #3f90cf;
/* rgb */ color: rgb(63, 144, 207);
/* oklch */ color: oklch(63.2% 0.123 245.1);

Tailwind

colors: {
  custom: {
    50: '#84b0de',
    500: '#3f90cf',
    950: '#000000',
  },
}

SCSS

$custom: #3f90cf;
$custom-light: #84b0de;
$custom-dark: #000000;

JSON

{
  "hex": "#3f90cf",
  "rgb": {
    "r": 63,
    "g": 144,
    "b": 207
  },
  "hsl": {
    "h": 206.25,
    "s": 60,
    "l": 52.941
  },
  "oklch": {
    "l": 0.63162,
    "c": 0.12336,
    "h": 245.1
  },
  "luminance": 0.25508
}

Semantic roles & 50–950 ramp

primary

#3F90CF

secondary

#D4B196

accent

#8A45E3

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3F90CF

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

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