#3F91C0#3F91C0

#3F91C0 is a light, moderate cyan. Relative luminance 0.251; OKLCH L 62.6% C 0.106 H 237.1°. Best body text is #000000 at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#3F91C0
RGB	rgb(63, 145, 192)
HSL	hsl(202, 51%, 50%)
HSV	hsv(202, 67%, 75%)
CMYK	cmyk(67.2%, 24.5%, 0%, 24.7%)
CIE-LAB	lab(57.18, -9.92, -31.70)
CIE-LCH	lch(57.18, 33.22, 252.63°)
OKLab	oklab(62.64% -0.0577 -0.0891)
OKLCH	oklch(62.64% 0.106 237.1)
XYZ	xyz(21.6860, 25.1110, 53.5630)
Luminance	0.2511 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F91C0 #C06E3F

analogous

#3FC0AE #3F91C0 #3F51C0

triadic

#3F91C0 #C03F91 #91C03F

tetradic

#3F91C0 #AE3FC0 #C06E3F #51C03F

square

#3F91C0 #AE3FC0 #C06E3F #51C03F

split-complementary

#3F91C0 #C03F51 #C0AE3F

monochromatic

#214B64 #306E92 #3F91C0 #6DABCF #9BC6DE

Accessibility & contrast

On white

3.49

#3F91C0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.02

#3F91C0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F91C0

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F91C0	#FFFFFF	#000000	##000000
##3F91C0	1.00	3.49	6.02	6.02
#FFFFFF	3.49	1.00	21.00	21.00
#000000	6.02	21.00	1.00	1.00
##000000	6.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B90C2

Deuteranopia (green-blind)

#6984BF

Tritanopia (blue-blind)

#009DA1

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #3f91c0;
/* rgb */ color: rgb(63, 145, 192);
/* oklch */ color: oklch(62.6% 0.106 237.1);

Tailwind

colors: {
  custom: {
    50: '#82b1d3',
    500: '#3f91c0',
    950: '#000000',
  },
}

SCSS

$custom: #3f91c0;
$custom-light: #82b1d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3f91c0",
  "rgb": {
    "r": 63,
    "g": 145,
    "b": 192
  },
  "hsl": {
    "h": 201.86,
    "s": 50.588,
    "l": 50
  },
  "oklch": {
    "l": 0.62638,
    "c": 0.10615,
    "h": 237.1
  },
  "luminance": 0.25113
}

Semantic roles & 50–950 ramp

primary

#3F91C0

secondary

#CAA691

accent

#814EDA

background

#F8FAFC

surface

#F0F5F9

border

#CBCFD2

text

#0C1014

muted

#7D7F82

Preview Lab

Preview with #3F91C0

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

Preview Lab → · Contrast checker → · Palette generator →