#3F8ACD#3F8ACD

#3F8ACD is a mid, vivid cyan. Relative luminance 0.236; OKLCH L 61.7% C 0.126 H 248.3°. Best body text is #000000 at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#3F8ACD
RGB	rgb(63, 138, 205)
HSL	hsl(208, 59%, 53%)
HSV	hsv(208, 69%, 80%)
CMYK	cmyk(69.3%, 32.7%, 0%, 19.6%)
CIE-LAB	lab(55.72, -1.45, -41.34)
CIE-LCH	lch(55.72, 41.36, 267.99°)
OKLab	oklab(61.68% -0.0465 -0.1171)
OKLCH	oklch(61.68% 0.126 248.3)
XYZ	xyz(22.1537, 23.6391, 61.1410)
Luminance	0.2364 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8ACD #CD823F

analogous

#3FCDC9 #3F8ACD #3F43CD

triadic

#3F8ACD #CD3F8A #8ACD3F

tetradic

#3F8ACD #C93FCD #CD823F #43CD3F

square

#3F8ACD #C93FCD #CD823F #43CD3F

split-complementary

#3F8ACD #CD3F43 #CDC93F

monochromatic

#1E4B74 #2B6BA4 #3F8ACD #70A8DA #A0C5E6

Accessibility & contrast

On white

3.67

#3F8ACD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.73

#3F8ACD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8ACD

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8ACD	#FFFFFF	#000000	##000000
##3F8ACD	1.00	3.67	5.73	5.73
#FFFFFF	3.67	1.00	21.00	21.00
#000000	5.73	21.00	1.00	1.00
##000000	5.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C8DD0

Deuteranopia (green-blind)

#587FCC

Tritanopia (blue-blind)

#009AA2

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #3f8acd;
/* rgb */ color: rgb(63, 138, 205);
/* oklch */ color: oklch(61.7% 0.126 248.3);

Tailwind

colors: {
  custom: {
    50: '#84abdc',
    500: '#3f8acd',
    950: '#000000',
  },
}

SCSS

$custom: #3f8acd;
$custom-light: #84abdc;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8acd",
  "rgb": {
    "r": 63,
    "g": 138,
    "b": 205
  },
  "hsl": {
    "h": 208.31,
    "s": 58.678,
    "l": 52.549
  },
  "oklch": {
    "l": 0.61681,
    "c": 0.12606,
    "h": 248.3
  },
  "luminance": 0.23641
}

Semantic roles & 50–950 ramp

primary

#3F8ACD

secondary

#D3B295

accent

#9046E2

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3F8ACD

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

Preview Lab → · Contrast checker → · Palette generator →