#3F8FDE#3F8FDE

#3F8FDE is a light, vivid cyan. Relative luminance 0.260; OKLCH L 63.8% C 0.142 H 250.8°. Best body text is #000000 at 6.20:1 contrast (WCAG AA passes).

Color values

HEX	#3F8FDE
RGB	rgb(63, 143, 222)
HSL	hsl(210, 71%, 56%)
HSV	hsv(210, 72%, 87%)
CMYK	cmyk(71.6%, 35.6%, 0%, 12.9%)
CIE-LAB	lab(58.01, 1.57, -47.27)
CIE-LCH	lch(58.01, 47.29, 271.90°)
OKLab	oklab(63.75% -0.0467 -0.1344)
OKLCH	oklch(63.75% 0.142 250.8)
XYZ	xyz(25.0522, 25.9728, 72.7860)
Luminance	0.2598 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8FDE #DE8E3F

analogous

#3FDEDD #3F8FDE #3F3FDE

triadic

#3F8FDE #DE3F8F #8FDE3F

tetradic

#3F8FDE #DD3FDE #DE8E3F #3FDE3F

square

#3F8FDE #DD3FDE #DE8E3F #3FDE3F

split-complementary

#3F8FDE #DE3F3F #DEDD3F

monochromatic

#18528B #2170BF #3F8FDE #73ADE7 #A7CCF0

Accessibility & contrast

On white

3.39

#3F8FDE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.20

#3F8FDE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8FDE

6.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8FDE	#FFFFFF	#000000	##000000
##3F8FDE	1.00	3.39	6.20	6.20
#FFFFFF	3.39	1.00	21.00	21.00
#000000	6.20	21.00	1.00	1.00
##000000	6.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B94E1

Deuteranopia (green-blind)

#5485DC

Tritanopia (blue-blind)

#00A2AC

Achromatopsia (no color)

#8B8B8B

Design tokens & code

CSS

--color: #3f8fde;
/* rgb */ color: rgb(63, 143, 222);
/* oklch */ color: oklch(63.8% 0.142 250.8);

Tailwind

colors: {
  custom: {
    50: '#87afe8',
    500: '#3f8fde',
    950: '#000000',
  },
}

SCSS

$custom: #3f8fde;
$custom-light: #87afe8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8fde",
  "rgb": {
    "r": 63,
    "g": 143,
    "b": 222
  },
  "hsl": {
    "h": 209.811,
    "s": 70.667,
    "l": 55.882
  },
  "oklch": {
    "l": 0.63753,
    "c": 0.1423,
    "h": 250.8
  },
  "luminance": 0.25976
}

Semantic roles & 50–950 ramp

primary

#3F8FDE

secondary

#DDBC9B

accent

#933AED

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D1016

muted

#7E7F84

Preview Lab

Preview with #3F8FDE

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

Preview Lab → · Contrast checker → · Palette generator →