#3F7DAF#3F7DAF

#3F7DAF is a mid, moderate cyan. Relative luminance 0.188; OKLCH L 57.1% C 0.101 H 245.2°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#3F7DAF
RGB	rgb(63, 125, 175)
HSL	hsl(207, 47%, 47%)
HSV	hsv(207, 64%, 69%)
CMYK	cmyk(64%, 28.6%, 0%, 31.4%)
CIE-LAB	lab(50.47, -4.16, -32.44)
CIE-LCH	lch(50.47, 32.71, 262.70°)
OKLab	oklab(57.08% -0.0422 -0.0914)
OKLCH	oklch(57.08% 0.101 245.2)
XYZ	xyz(17.1185, 18.8174, 43.2791)
Luminance	0.1882 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7DAF #AF713F

analogous

#3FAFA9 #3F7DAF #3F45AF

triadic

#3F7DAF #AF3F7D #7DAF3F

tetradic

#3F7DAF #A93FAF #AF713F #45AF3F

square

#3F7DAF #A93FAF #AF713F #45AF3F

split-complementary

#3F7DAF #AF3F45 #AFA93F

monochromatic

#1F3D55 #2F5D82 #3F7DAF #649BC7 #91B8D7

Accessibility & contrast

On white

4.41

#3F7DAF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#3F7DAF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7DAF

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7DAF	#FFFFFF	#000000	##000000
##3F7DAF	1.00	4.41	4.76	4.76
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#677EB1

Deuteranopia (green-blind)

#5873AE

Tritanopia (blue-blind)

#00898E

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3f7daf;
/* rgb */ color: rgb(63, 125, 175);
/* oklch */ color: oklch(57.1% 0.101 245.2);

Tailwind

colors: {
  custom: {
    50: '#7fa2c7',
    500: '#3f7daf',
    950: '#000000',
  },
}

SCSS

$custom: #3f7daf;
$custom-light: #7fa2c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7daf",
  "rgb": {
    "r": 63,
    "g": 125,
    "b": 175
  },
  "hsl": {
    "h": 206.786,
    "s": 47.059,
    "l": 46.667
  },
  "oklch": {
    "l": 0.57076,
    "c": 0.10069,
    "h": 245.2
  },
  "luminance": 0.18819
}

Semantic roles & 50–950 ramp

primary

#3F7DAF

secondary

#C3A287

accent

#8D51D7

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0F13

muted

#7C7E82

Preview Lab

Preview with #3F7DAF

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

Preview Lab → · Contrast checker → · Palette generator →