#3F87CA#3F87CA

#3F87CA is a mid, vivid cyan. Relative luminance 0.226; OKLCH L 60.8% C 0.125 H 249.2°. Best body text is #000000 at 5.53:1 contrast (WCAG AA passes).

Color values

HEX	#3F87CA
RGB	rgb(63, 135, 202)
HSL	hsl(209, 57%, 52%)
HSV	hsv(209, 69%, 79%)
CMYK	cmyk(68.8%, 33.2%, 0%, 20.8%)
CIE-LAB	lab(54.71, -0.73, -41.25)
CIE-LCH	lch(54.71, 41.25, 268.99°)
OKLab	oklab(60.83% -0.0445 -0.1169)
OKLCH	oklch(60.83% 0.125 249.2)
XYZ	xyz(21.3706, 22.6467, 59.1106)
Luminance	0.2265 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F87CA #CA823F

analogous

#3FCAC8 #3F87CA #3F42CA

triadic

#3F87CA #CA3F87 #87CA3F

tetradic

#3F87CA #C83FCA #CA823F #42CA3F

square

#3F87CA #C83FCA #CA823F #42CA3F

split-complementary

#3F87CA #CA3F42 #CAC83F

monochromatic

#1F4970 #2C68A0 #3F87CA #6FA5D7 #9FC3E4

Accessibility & contrast

On white

3.80

#3F87CA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.53

#3F87CA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F87CA

5.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F87CA	#FFFFFF	#000000	##000000
##3F87CA	1.00	3.80	5.53	5.53
#FFFFFF	3.80	1.00	21.00	21.00
#000000	5.53	21.00	1.00	1.00
##000000	5.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#698ACD

Deuteranopia (green-blind)

#567DC9

Tritanopia (blue-blind)

#00979F

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #3f87ca;
/* rgb */ color: rgb(63, 135, 202);
/* oklch */ color: oklch(60.8% 0.125 249.2);

Tailwind

colors: {
  custom: {
    50: '#83a9da',
    500: '#3f87ca',
    950: '#000000',
  },
}

SCSS

$custom: #3f87ca;
$custom-light: #83a9da;
$custom-dark: #000000;

JSON

{
  "hex": "#3f87ca",
  "rgb": {
    "r": 63,
    "g": 135,
    "b": 202
  },
  "hsl": {
    "h": 208.921,
    "s": 56.735,
    "l": 51.961
  },
  "oklch": {
    "l": 0.60832,
    "c": 0.12508,
    "h": 249.2
  },
  "luminance": 0.22649
}

Semantic roles & 50–950 ramp

primary

#3F87CA

secondary

#D1B194

accent

#9148E0

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3F87CA

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

Preview Lab → · Contrast checker → · Palette generator →