#3F7CBE#3F7CBE

#3F7CBE is a mid, vivid cyan. Relative luminance 0.192; OKLCH L 57.7% C 0.120 H 252.2°. Best body text is #000000 at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#3F7CBE
RGB	rgb(63, 124, 190)
HSL	hsl(211, 50%, 50%)
HSV	hsv(211, 67%, 75%)
CMYK	cmyk(66.8%, 34.7%, 0%, 25.5%)
CIE-LAB	lab(50.91, 1.63, -40.40)
CIE-LCH	lch(50.91, 40.44, 272.31°)
OKLab	oklab(57.66% -0.0367 -0.1146)
OKLCH	oklch(57.66% 0.12 252.2)
XYZ	xyz(18.5484, 19.1879, 51.4313)
Luminance	0.1919 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7CBE #BE813F

analogous

#3FBCBE #3F7CBE #413FBE

triadic

#3F7CBE #BE3F7C #7CBE3F

tetradic

#3F7CBE #BE3FBC #BE813F #3FBE41

square

#3F7CBE #BE3FBC #BE813F #3FBE41

split-complementary

#3F7CBE #BE413F #BCBE3F

monochromatic

#214062 #305E90 #3F7CBE #6C9BCE #9ABADD

Accessibility & contrast

On white

4.34

#3F7CBE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.84

#3F7CBE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7CBE

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7CBE	#FFFFFF	#000000	##000000
##3F7CBE	1.00	4.34	4.84	4.84
#FFFFFF	4.34	1.00	21.00	21.00
#000000	4.84	21.00	1.00	1.00
##000000	4.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F80C1

Deuteranopia (green-blind)

#4D74BD

Tritanopia (blue-blind)

#008B94

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #3f7cbe;
/* rgb */ color: rgb(63, 124, 190);
/* oklch */ color: oklch(57.7% 0.120 252.2);

Tailwind

colors: {
  custom: {
    50: '#81a1d2',
    500: '#3f7cbe',
    950: '#000000',
  },
}

SCSS

$custom: #3f7cbe;
$custom-light: #81a1d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7cbe",
  "rgb": {
    "r": 63,
    "g": 124,
    "b": 190
  },
  "hsl": {
    "h": 211.181,
    "s": 50.198,
    "l": 49.608
  },
  "oklch": {
    "l": 0.57655,
    "c": 0.12033,
    "h": 252.2
  },
  "luminance": 0.1919
}

Semantic roles & 50–950 ramp

primary

#3F7CBE

secondary

#C9AE8F

accent

#974EDA

background

#F8F9FC

surface

#F0F2F9

border

#CBCCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3F7CBE

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

Preview Lab → · Contrast checker → · Palette generator →