#3F91AF#3F91AF

#3F91AF is a mid, moderate cyan. Relative luminance 0.244; OKLCH L 61.9% C 0.091 H 225.3°. Best body text is #000000 at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#3F91AF
RGB	rgb(63, 145, 175)
HSL	hsl(196, 47%, 47%)
HSV	hsv(196, 64%, 69%)
CMYK	cmyk(64%, 17.1%, 0%, 31.4%)
CIE-LAB	lab(56.49, -15.49, -23.12)
CIE-LCH	lch(56.49, 27.83, 236.17°)
OKLab	oklab(61.85% -0.0638 -0.0645)
OKLCH	oklch(61.85% 0.091 225.3)
XYZ	xyz(19.9101, 24.4006, 44.2096)
Luminance	0.2440 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F91AF #AF5D3F

analogous

#3FAF95 #3F91AF #3F59AF

triadic

#3F91AF #AF3F91 #91AF3F

tetradic

#3F91AF #953FAF #AF5D3F #59AF3F

square

#3F91AF #953FAF #AF5D3F #59AF3F

split-complementary

#3F91AF #AF3F59 #AF953F

monochromatic

#1F4655 #2F6C82 #3F91AF #64ADC7 #91C5D7

Accessibility & contrast

On white

3.57

#3F91AF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.88

#3F91AF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F91AF

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F91AF	#FFFFFF	#000000	##000000
##3F91AF	1.00	3.57	5.88	5.88
#FFFFFF	3.57	1.00	21.00	21.00
#000000	5.88	21.00	1.00	1.00
##000000	5.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#818EB1

Deuteranopia (green-blind)

#7182AF

Tritanopia (blue-blind)

#009A9B

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #3f91af;
/* rgb */ color: rgb(63, 145, 175);
/* oklch */ color: oklch(61.9% 0.091 225.3);

Tailwind

colors: {
  custom: {
    50: '#80b1c7',
    500: '#3f91af',
    950: '#000000',
  },
}

SCSS

$custom: #3f91af;
$custom-light: #80b1c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f91af",
  "rgb": {
    "r": 63,
    "g": 145,
    "b": 175
  },
  "hsl": {
    "h": 196.071,
    "s": 47.059,
    "l": 46.667
  },
  "oklch": {
    "l": 0.61852,
    "c": 0.09076,
    "h": 225.3
  },
  "luminance": 0.24403
}

Semantic roles & 50–950 ramp

primary

#3F91AF

secondary

#C39787

accent

#7551D7

background

#F8FAFC

surface

#EFF5F8

border

#CACFD1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3F91AF

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

Preview Lab → · Contrast checker → · Palette generator →