#3F91C1#3F91C1

#3F91C1 is a light, moderate cyan. Relative luminance 0.252; OKLCH L 62.7% C 0.107 H 237.7°. Best body text is #000000 at 6.03:1 contrast (WCAG AA passes).

Color values

HEX	#3F91C1
RGB	rgb(63, 145, 193)
HSL	hsl(202, 51%, 50%)
HSV	hsv(202, 67%, 76%)
CMYK	cmyk(67.4%, 24.9%, 0%, 24.3%)
CIE-LAB	lab(57.23, -9.58, -32.20)
CIE-LCH	lch(57.23, 33.60, 253.43°)
OKLab	oklab(62.69% -0.0573 -0.0906)
OKLCH	oklch(62.69% 0.107 237.7)
XYZ	xyz(21.7972, 25.1555, 54.1485)
Luminance	0.2516 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F91C1 #C16F3F

analogous

#3FC1B0 #3F91C1 #3F50C1

triadic

#3F91C1 #C13F91 #91C13F

tetradic

#3F91C1 #B03FC1 #C16F3F #50C13F

square

#3F91C1 #B03FC1 #C16F3F #50C13F

split-complementary

#3F91C1 #C13F50 #C1B03F

monochromatic

#214C65 #306E93 #3F91C1 #6DACD0 #9CC6DF

Accessibility & contrast

On white

3.48

#3F91C1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.03

#3F91C1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F91C1

6.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F91C1	#FFFFFF	#000000	##000000
##3F91C1	1.00	3.48	6.03	6.03
#FFFFFF	3.48	1.00	21.00	21.00
#000000	6.03	21.00	1.00	1.00
##000000	6.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B91C3

Deuteranopia (green-blind)

#6984C0

Tritanopia (blue-blind)

#009DA1

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #3f91c1;
/* rgb */ color: rgb(63, 145, 193);
/* oklch */ color: oklch(62.7% 0.107 237.7);

Tailwind

colors: {
  custom: {
    50: '#82b1d4',
    500: '#3f91c1',
    950: '#000000',
  },
}

SCSS

$custom: #3f91c1;
$custom-light: #82b1d4;
$custom-dark: #000000;

JSON

{
  "hex": "#3f91c1",
  "rgb": {
    "r": 63,
    "g": 145,
    "b": 193
  },
  "hsl": {
    "h": 202.154,
    "s": 51.181,
    "l": 50.196
  },
  "oklch": {
    "l": 0.62686,
    "c": 0.10718,
    "h": 237.7
  },
  "luminance": 0.25158
}

Semantic roles & 50–950 ramp

primary

#3F91C1

secondary

#CBA691

accent

#814DDB

background

#F8FAFD

surface

#F0F5FA

border

#CBCFD3

text

#0C1014

muted

#7D7F83

Preview Lab

Preview with #3F91C1

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

Preview Lab → · Contrast checker → · Palette generator →