#3F7BC8#3F7BC8

#3F7BC8 is a mid, vivid cyan. Relative luminance 0.194; OKLCH L 58.0% C 0.134 H 255.7°. Best body text is #000000 at 4.88:1 contrast (WCAG AA passes).

Color values

HEX	#3F7BC8
RGB	rgb(63, 123, 200)
HSL	hsl(214, 55%, 52%)
HSV	hsv(214, 69%, 78%)
CMYK	cmyk(68.5%, 38.5%, 0%, 21.6%)
CIE-LAB	lab(51.14, 5.77, -45.75)
CIE-LCH	lch(51.14, 46.11, 277.18°)
OKLab	oklab(58.01% -0.0332 -0.1302)
OKLCH	oklch(58.01% 0.134 255.7)
XYZ	xyz(19.5544, 19.3908, 57.3446)
Luminance	0.1939 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7BC8 #C88C3F

analogous

#3FC0C8 #3F7BC8 #483FC8

triadic

#3F7BC8 #C83F7B #7BC83F

tetradic

#3F7BC8 #C83FC0 #C88C3F #3FC848

square

#3F7BC8 #C83FC0 #C88C3F #3FC848

split-complementary

#3F7BC8 #C8483F #C0C83F

monochromatic

#1F416D #2D5E9D #3F7BC8 #6F9CD6 #9EBCE3

Accessibility & contrast

On white

4.30

#3F7BC8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.88

#3F7BC8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7BC8

4.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7BC8	#FFFFFF	#000000	##000000
##3F7BC8	1.00	4.30	4.88	4.88
#FFFFFF	4.30	1.00	21.00	21.00
#000000	4.88	21.00	1.00	1.00
##000000	4.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5881CB

Deuteranopia (green-blind)

#4474C6

Tritanopia (blue-blind)

#008D98

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #3f7bc8;
/* rgb */ color: rgb(63, 123, 200);
/* oklch */ color: oklch(58.0% 0.134 255.7);

Tailwind

colors: {
  custom: {
    50: '#83a0d9',
    500: '#3f7bc8',
    950: '#000000',
  },
}

SCSS

$custom: #3f7bc8;
$custom-light: #83a0d9;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7bc8",
  "rgb": {
    "r": 63,
    "g": 123,
    "b": 200
  },
  "hsl": {
    "h": 213.723,
    "s": 55.466,
    "l": 51.569
  },
  "oklch": {
    "l": 0.5801,
    "c": 0.13442,
    "h": 255.7
  },
  "luminance": 0.19393
}

Semantic roles & 50–950 ramp

primary

#3F7BC8

secondary

#D0B593

accent

#9D49DF

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E14

muted

#7D7E83

Preview Lab

Preview with #3F7BC8

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

Preview Lab → · Contrast checker → · Palette generator →