#3F91C4#3F91C4

#3F91C4 is a light, moderate cyan. Relative luminance 0.253; OKLCH L 62.8% C 0.110 H 239.3°. Best body text is #000000 at 6.06:1 contrast (WCAG AA passes).

Color values

HEX	#3F91C4
RGB	rgb(63, 145, 196)
HSL	hsl(203, 53%, 51%)
HSV	hsv(203, 68%, 77%)
CMYK	cmyk(67.9%, 26%, 0%, 23.1%)
CIE-LAB	lab(57.36, -8.57, -33.69)
CIE-LCH	lch(57.36, 34.77, 255.72°)
OKLab	oklab(62.83% -0.0563 -0.0949)
OKLCH	oklch(62.83% 0.11 239.3)
XYZ	xyz(22.1353, 25.2907, 55.9289)
Luminance	0.2529 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F91C4 #C4723F

analogous

#3FC4B5 #3F91C4 #3F4EC4

triadic

#3F91C4 #C43F91 #91C43F

tetradic

#3F91C4 #B53FC4 #C4723F #4EC43F

square

#3F91C4 #B53FC4 #C4723F #4EC43F

split-complementary

#3F91C4 #C43F4E #C4B53F

monochromatic

#204D68 #2E6F97 #3F91C4 #6EACD2 #9DC7E1

Accessibility & contrast

On white

3.47

#3F91C4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.06

#3F91C4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F91C4

6.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F91C4	#FFFFFF	#000000	##000000
##3F91C4	1.00	3.47	6.06	6.06
#FFFFFF	3.47	1.00	21.00	21.00
#000000	6.06	21.00	1.00	1.00
##000000	6.06	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7991C6

Deuteranopia (green-blind)

#6784C3

Tritanopia (blue-blind)

#009EA2

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #3f91c4;
/* rgb */ color: rgb(63, 145, 196);
/* oklch */ color: oklch(62.8% 0.110 239.3);

Tailwind

colors: {
  custom: {
    50: '#83b1d6',
    500: '#3f91c4',
    950: '#000000',
  },
}

SCSS

$custom: #3f91c4;
$custom-light: #83b1d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f91c4",
  "rgb": {
    "r": 63,
    "g": 145,
    "b": 196
  },
  "hsl": {
    "h": 203.008,
    "s": 52.988,
    "l": 50.784
  },
  "oklch": {
    "l": 0.62833,
    "c": 0.11034,
    "h": 239.3
  },
  "luminance": 0.25293
}

Semantic roles & 50–950 ramp

primary

#3F91C4

secondary

#CDA992

accent

#834BDC

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1014

muted

#7D7F83

Preview Lab

Preview with #3F91C4

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

Preview Lab → · Contrast checker → · Palette generator →