#3F91C3#3F91C3

#3F91C3 is a light, moderate cyan. Relative luminance 0.252; OKLCH L 62.8% C 0.109 H 238.8°. Best body text is #000000 at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#3F91C3
RGB	rgb(63, 145, 195)
HSL	hsl(203, 52%, 51%)
HSV	hsv(203, 68%, 76%)
CMYK	cmyk(67.7%, 25.6%, 0%, 23.5%)
CIE-LAB	lab(57.31, -8.91, -33.20)
CIE-LCH	lch(57.31, 34.37, 254.98°)
OKLab	oklab(62.78% -0.0567 -0.0934)
OKLCH	oklch(62.78% 0.109 238.8)
XYZ	xyz(22.0218, 25.2453, 55.3314)
Luminance	0.2525 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F91C3 #C3713F

analogous

#3FC3B3 #3F91C3 #3F4FC3

triadic

#3F91C3 #C33F91 #91C33F

tetradic

#3F91C3 #B33FC3 #C3713F #4FC33F

square

#3F91C3 #B33FC3 #C3713F #4FC33F

split-complementary

#3F91C3 #C33F4F #C3B33F

monochromatic

#204C67 #2F6F96 #3F91C3 #6EACD2 #9CC6E0

Accessibility & contrast

On white

3.47

#3F91C3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.05

#3F91C3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F91C3

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F91C3	#FFFFFF	#000000	##000000
##3F91C3	1.00	3.47	6.05	6.05
#FFFFFF	3.47	1.00	21.00	21.00
#000000	6.05	21.00	1.00	1.00
##000000	6.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A91C5

Deuteranopia (green-blind)

#6884C2

Tritanopia (blue-blind)

#009EA2

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #3f91c3;
/* rgb */ color: rgb(63, 145, 195);
/* oklch */ color: oklch(62.8% 0.109 238.8);

Tailwind

colors: {
  custom: {
    50: '#83b1d5',
    500: '#3f91c3',
    950: '#000000',
  },
}

SCSS

$custom: #3f91c3;
$custom-light: #83b1d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f91c3",
  "rgb": {
    "r": 63,
    "g": 145,
    "b": 195
  },
  "hsl": {
    "h": 202.727,
    "s": 52.381,
    "l": 50.588
  },
  "oklch": {
    "l": 0.62784,
    "c": 0.10928,
    "h": 238.8
  },
  "luminance": 0.25248
}

Semantic roles & 50–950 ramp

primary

#3F91C3

secondary

#CCA892

accent

#824CDC

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1014

muted

#7D7F83

Preview Lab

Preview with #3F91C3

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

Preview Lab → · Contrast checker → · Palette generator →