#3F7ABC#3F7ABC

#3F7ABC is a mid, moderate cyan. Relative luminance 0.186; OKLCH L 57.1% C 0.120 H 252.9°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#3F7ABC
RGB	rgb(63, 122, 188)
HSL	hsl(212, 50%, 49%)
HSV	hsv(212, 66%, 74%)
CMYK	cmyk(66.5%, 35.1%, 0%, 26.3%)
CIE-LAB	lab(50.22, 2.14, -40.34)
CIE-LCH	lch(50.22, 40.39, 273.03°)
OKLab	oklab(57.09% -0.0352 -0.1144)
OKLCH	oklch(57.09% 0.12 252.9)
XYZ	xyz(18.0832, 18.6048, 50.2053)
Luminance	0.1861 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7ABC #BC813F

analogous

#3FB9BC #3F7ABC #433FBC

triadic

#3F7ABC #BC3F7A #7ABC3F

tetradic

#3F7ABC #BC3FB9 #BC813F #3FBC43

square

#3F7ABC #BC3FB9 #BC813F #3FBC43

split-complementary

#3F7ABC #BC433F #B9BC3F

monochromatic

#203F60 #305C8E #3F7ABC #6B99CD #99B9DD

Accessibility & contrast

On white

4.45

#3F7ABC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#3F7ABC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7ABC

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7ABC	#FFFFFF	#000000	##000000
##3F7ABC	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D7EBF

Deuteranopia (green-blind)

#4B72BB

Tritanopia (blue-blind)

#008992

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #3f7abc;
/* rgb */ color: rgb(63, 122, 188);
/* oklch */ color: oklch(57.1% 0.120 252.9);

Tailwind

colors: {
  custom: {
    50: '#81a0d0',
    500: '#3f7abc',
    950: '#000000',
  },
}

SCSS

$custom: #3f7abc;
$custom-light: #81a0d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7abc",
  "rgb": {
    "r": 63,
    "g": 122,
    "b": 188
  },
  "hsl": {
    "h": 211.68,
    "s": 49.801,
    "l": 49.216
  },
  "oklch": {
    "l": 0.57086,
    "c": 0.11972,
    "h": 252.9
  },
  "luminance": 0.18607
}

Semantic roles & 50–950 ramp

primary

#3F7ABC

secondary

#C9AD8E

accent

#984ED9

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3F7ABC

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

Preview Lab → · Contrast checker → · Palette generator →