#3F7FC8#3F7FC8

#3F7FC8 is a mid, vivid cyan. Relative luminance 0.204; OKLCH L 58.9% C 0.130 H 253.4°. Best body text is #000000 at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#3F7FC8
RGB	rgb(63, 127, 200)
HSL	hsl(212, 55%, 52%)
HSV	hsv(212, 69%, 78%)
CMYK	cmyk(68.5%, 36.5%, 0%, 21.6%)
CIE-LAB	lab(52.29, 3.34, -43.93)
CIE-LCH	lch(52.29, 44.06, 274.35°)
OKLab	oklab(58.91% -0.0371 -0.1249)
OKLCH	oklch(58.91% 0.13 253.4)
XYZ	xyz(20.0608, 20.4035, 57.5134)
Luminance	0.2041 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7FC8 #C8883F

analogous

#3FC4C8 #3F7FC8 #443FC8

triadic

#3F7FC8 #C83F7F #7FC83F

tetradic

#3F7FC8 #C83FC4 #C8883F #3FC844

square

#3F7FC8 #C83FC4 #C8883F #3FC844

split-complementary

#3F7FC8 #C8443F #C4C83F

monochromatic

#1F446D #2D619D #3F7FC8 #6F9FD6 #9EBEE3

Accessibility & contrast

On white

4.13

#3F7FC8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.08

#3F7FC8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7FC8

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7FC8	#FFFFFF	#000000	##000000
##3F7FC8	1.00	4.13	5.08	5.08
#FFFFFF	4.13	1.00	21.00	21.00
#000000	5.08	21.00	1.00	1.00
##000000	5.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E84CB

Deuteranopia (green-blind)

#4A77C7

Tritanopia (blue-blind)

#00909A

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3f7fc8;
/* rgb */ color: rgb(63, 127, 200);
/* oklch */ color: oklch(58.9% 0.130 253.4);

Tailwind

colors: {
  custom: {
    50: '#83a3d9',
    500: '#3f7fc8',
    950: '#000000',
  },
}

SCSS

$custom: #3f7fc8;
$custom-light: #83a3d9;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7fc8",
  "rgb": {
    "r": 63,
    "g": 127,
    "b": 200
  },
  "hsl": {
    "h": 211.971,
    "s": 55.466,
    "l": 51.569
  },
  "oklch": {
    "l": 0.58906,
    "c": 0.13026,
    "h": 253.4
  },
  "luminance": 0.20406
}

Semantic roles & 50–950 ramp

primary

#3F7FC8

secondary

#D0B393

accent

#9949DF

background

#F8FAFD

surface

#F0F3FA

border

#CBCDD3

text

#0C0F14

muted

#7D7F83

Preview Lab

Preview with #3F7FC8

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

Preview Lab → · Contrast checker → · Palette generator →