#3F7FC3#3F7FC3

#3F7FC3 is a mid, vivid cyan. Relative luminance 0.202; OKLCH L 58.6% C 0.124 H 251.9°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#3F7FC3
RGB	rgb(63, 127, 195)
HSL	hsl(211, 52%, 51%)
HSV	hsv(211, 68%, 76%)
CMYK	cmyk(67.7%, 34.9%, 0%, 23.5%)
CIE-LAB	lab(52.03, 1.58, -41.49)
CIE-LCH	lch(52.03, 41.52, 272.18°)
OKLab	oklab(58.62% -0.0384 -0.1177)
OKLCH	oklch(58.62% 0.124 251.9)
XYZ	xyz(19.4860, 20.1736, 54.4861)
Luminance	0.2018 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7FC3 #C3833F

analogous

#3FC1C3 #3F7FC3 #413FC3

triadic

#3F7FC3 #C33F7F #7FC33F

tetradic

#3F7FC3 #C33FC1 #C3833F #3FC341

square

#3F7FC3 #C33FC1 #C3833F #3FC341

split-complementary

#3F7FC3 #C3413F #C1C33F

monochromatic

#204367 #2F6196 #3F7FC3 #6E9ED2 #9CBDE0

Accessibility & contrast

On white

4.17

#3F7FC3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.04

#3F7FC3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7FC3

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7FC3	#FFFFFF	#000000	##000000
##3F7FC3	1.00	4.17	5.04	5.04
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.04	21.00	1.00	1.00
##000000	5.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6183C6

Deuteranopia (green-blind)

#4E76C2

Tritanopia (blue-blind)

#008F98

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3f7fc3;
/* rgb */ color: rgb(63, 127, 195);
/* oklch */ color: oklch(58.6% 0.124 251.9);

Tailwind

colors: {
  custom: {
    50: '#82a3d5',
    500: '#3f7fc3',
    950: '#000000',
  },
}

SCSS

$custom: #3f7fc3;
$custom-light: #82a3d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7fc3",
  "rgb": {
    "r": 63,
    "g": 127,
    "b": 195
  },
  "hsl": {
    "h": 210.909,
    "s": 52.381,
    "l": 50.588
  },
  "oklch": {
    "l": 0.5862,
    "c": 0.12383,
    "h": 251.9
  },
  "luminance": 0.20176
}

Semantic roles & 50–950 ramp

primary

#3F7FC3

secondary

#CCB092

accent

#964CDC

background

#F8FAFD

surface

#F0F3FA

border

#CBCDD3

text

#0C0F14

muted

#7D7F83

Preview Lab

Preview with #3F7FC3

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

Preview Lab → · Contrast checker → · Palette generator →