#3F91C6#3F91C6

#3F91C6 is a light, moderate cyan. Relative luminance 0.254; OKLCH L 62.9% C 0.112 H 240.3°. Best body text is #000000 at 6.08:1 contrast (WCAG AA passes).

Color values

HEX	#3F91C6
RGB	rgb(63, 145, 198)
HSL	hsl(204, 54%, 51%)
HSV	hsv(204, 68%, 78%)
CMYK	cmyk(68.2%, 26.8%, 0%, 22.4%)
CIE-LAB	lab(57.45, -7.90, -34.69)
CIE-LCH	lch(57.45, 35.57, 257.17°)
OKLab	oklab(62.93% -0.0557 -0.0977)
OKLCH	oklch(62.93% 0.112 240.3)
XYZ	xyz(22.3644, 25.3824, 57.1358)
Luminance	0.2539 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F91C6 #C6743F

analogous

#3FC6B8 #3F91C6 #3F4DC6

triadic

#3F91C6 #C63F91 #91C63F

tetradic

#3F91C6 #B83FC6 #C6743F #4DC63F

square

#3F91C6 #B83FC6 #C6743F #4DC63F

split-complementary

#3F91C6 #C63F4D #C6B83F

monochromatic

#204D6B #2E709A #3F91C6 #6EACD4 #9DC7E2

Accessibility & contrast

On white

3.46

#3F91C6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.08

#3F91C6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F91C6

6.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F91C6	#FFFFFF	#000000	##000000
##3F91C6	1.00	3.46	6.08	6.08
#FFFFFF	3.46	1.00	21.00	21.00
#000000	6.08	21.00	1.00	1.00
##000000	6.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7991C8

Deuteranopia (green-blind)

#6684C5

Tritanopia (blue-blind)

#009EA3

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #3f91c6;
/* rgb */ color: rgb(63, 145, 198);
/* oklch */ color: oklch(62.9% 0.112 240.3);

Tailwind

colors: {
  custom: {
    50: '#83b1d7',
    500: '#3f91c6',
    950: '#000000',
  },
}

SCSS

$custom: #3f91c6;
$custom-light: #83b1d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f91c6",
  "rgb": {
    "r": 63,
    "g": 145,
    "b": 198
  },
  "hsl": {
    "h": 203.556,
    "s": 54.217,
    "l": 51.176
  },
  "oklch": {
    "l": 0.62932,
    "c": 0.11248,
    "h": 240.3
  },
  "luminance": 0.25385
}

Semantic roles & 50–950 ramp

primary

#3F91C6

secondary

#CEAA93

accent

#844ADE

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1014

muted

#7D7F83

Preview Lab

Preview with #3F91C6

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

Preview Lab → · Contrast checker → · Palette generator →