#3F8DC4#3F8DC4

#3F8DC4 is a mid, moderate cyan. Relative luminance 0.241; OKLCH L 61.9% C 0.113 H 242.5°. Best body text is #000000 at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#3F8DC4
RGB	rgb(63, 141, 196)
HSL	hsl(205, 53%, 51%)
HSV	hsv(205, 68%, 77%)
CMYK	cmyk(67.9%, 28.1%, 0%, 23.1%)
CIE-LAB	lab(56.18, -6.29, -35.54)
CIE-LCH	lch(56.18, 36.09, 259.96°)
OKLab	oklab(61.9% -0.0522 -0.1003)
OKLCH	oklch(61.9% 0.113 242.5)
XYZ	xyz(21.5348, 24.0897, 55.7287)
Luminance	0.2409 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8DC4 #C4763F

analogous

#3FC4B8 #3F8DC4 #3F4AC4

triadic

#3F8DC4 #C43F8D #8DC43F

tetradic

#3F8DC4 #B83FC4 #C4763F #4AC43F

square

#3F8DC4 #B83FC4 #C4763F #4AC43F

split-complementary

#3F8DC4 #C43F4A #C4B83F

monochromatic

#204B68 #2E6C97 #3F8DC4 #6EA9D2 #9DC5E1

Accessibility & contrast

On white

3.61

#3F8DC4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.82

#3F8DC4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8DC4

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8DC4	#FFFFFF	#000000	##000000
##3F8DC4	1.00	3.61	5.82	5.82
#FFFFFF	3.61	1.00	21.00	21.00
#000000	5.82	21.00	1.00	1.00
##000000	5.82	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#748EC6

Deuteranopia (green-blind)

#6281C3

Tritanopia (blue-blind)

#009BA0

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #3f8dc4;
/* rgb */ color: rgb(63, 141, 196);
/* oklch */ color: oklch(61.9% 0.113 242.5);

Tailwind

colors: {
  custom: {
    50: '#83aed6',
    500: '#3f8dc4',
    950: '#000000',
  },
}

SCSS

$custom: #3f8dc4;
$custom-light: #83aed6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8dc4",
  "rgb": {
    "r": 63,
    "g": 141,
    "b": 196
  },
  "hsl": {
    "h": 204.812,
    "s": 52.988,
    "l": 50.784
  },
  "oklch": {
    "l": 0.61899,
    "c": 0.11305,
    "h": 242.5
  },
  "luminance": 0.24092
}

Semantic roles & 50–950 ramp

primary

#3F8DC4

secondary

#CDAA92

accent

#874BDC

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C1014

muted

#7D7F83

Preview Lab

Preview with #3F8DC4

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

Preview Lab → · Contrast checker → · Palette generator →