#3F7BCE#3F7BCE

#3F7BCE is a mid, vivid cyan. Relative luminance 0.197; OKLCH L 58.4% C 0.142 H 257.1°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#3F7BCE
RGB	rgb(63, 123, 206)
HSL	hsl(215, 59%, 53%)
HSV	hsv(215, 69%, 81%)
CMYK	cmyk(69.4%, 40.3%, 0%, 19.2%)
CIE-LAB	lab(51.47, 7.91, -48.65)
CIE-LCH	lch(51.47, 49.28, 279.23°)
OKLab	oklab(58.37% -0.0319 -0.1387)
OKLCH	oklch(58.37% 0.142 257.1)
XYZ	xyz(20.2694, 19.6768, 61.1103)
Luminance	0.1968 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7BCE #CE923F

analogous

#3FC3CE #3F7BCE #4A3FCE

triadic

#3F7BCE #CE3F7B #7BCE3F

tetradic

#3F7BCE #CE3FC3 #CE923F #3FCE4A

square

#3F7BCE #CE3FC3 #CE923F #3FCE4A

split-complementary

#3F7BCE #CE4A3F #C3CE3F

monochromatic

#1E4275 #2A5EA6 #3F7BCE #709DDA #A1BEE7

Accessibility & contrast

On white

4.25

#3F7BCE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#3F7BCE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7BCE

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7BCE	#FFFFFF	#000000	##000000
##3F7BCE	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5482D1

Deuteranopia (green-blind)

#3E75CC

Tritanopia (blue-blind)

#008E9A

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #3f7bce;
/* rgb */ color: rgb(63, 123, 206);
/* oklch */ color: oklch(58.4% 0.142 257.1);

Tailwind

colors: {
  custom: {
    50: '#84a0dd',
    500: '#3f7bce',
    950: '#000000',
  },
}

SCSS

$custom: #3f7bce;
$custom-light: #84a0dd;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7bce",
  "rgb": {
    "r": 63,
    "g": 123,
    "b": 206
  },
  "hsl": {
    "h": 214.825,
    "s": 59.336,
    "l": 52.745
  },
  "oklch": {
    "l": 0.58372,
    "c": 0.14235,
    "h": 257.1
  },
  "luminance": 0.19679
}

Semantic roles & 50–950 ramp

primary

#3F7BCE

secondary

#D3B995

accent

#A145E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3F7BCE

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

Preview Lab → · Contrast checker → · Palette generator →