#3F8EDB#3F8EDB

#3F8EDB is a light, vivid cyan. Relative luminance 0.255; OKLCH L 63.4% C 0.140 H 250.5°. Best body text is #000000 at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#3F8EDB
RGB	rgb(63, 142, 219)
HSL	hsl(210, 68%, 55%)
HSV	hsv(210, 71%, 86%)
CMYK	cmyk(71.2%, 35.2%, 0%, 14.1%)
CIE-LAB	lab(57.57, 1.10, -46.29)
CIE-LCH	lch(57.57, 46.30, 271.36°)
OKLab	oklab(63.36% -0.0466 -0.1315)
OKLCH	oklch(63.36% 0.14 250.5)
XYZ	xyz(24.5043, 25.5145, 70.6375)
Luminance	0.2552 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F8EDB #DB8C3F

analogous

#3FDBDA #3F8EDB #3F40DB

triadic

#3F8EDB #DB3F8E #8EDB3F

tetradic

#3F8EDB #DA3FDB #DB8C3F #40DB3F

square

#3F8EDB #DA3FDB #DB8C3F #40DB3F

split-complementary

#3F8EDB #DB3F40 #DBDA3F

monochromatic

#195186 #236FBA #3F8EDB #73ACE5 #A6CBEE

Accessibility & contrast

On white

3.44

#3F8EDB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.10

#3F8EDB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8EDB

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F8EDB	#FFFFFF	#000000	##000000
##3F8EDB	1.00	3.44	6.10	6.10
#FFFFFF	3.44	1.00	21.00	21.00
#000000	6.10	21.00	1.00	1.00
##000000	6.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B92DE

Deuteranopia (green-blind)

#5484D9

Tritanopia (blue-blind)

#00A0AA

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #3f8edb;
/* rgb */ color: rgb(63, 142, 219);
/* oklch */ color: oklch(63.4% 0.140 250.5);

Tailwind

colors: {
  custom: {
    50: '#86aee6',
    500: '#3f8edb',
    950: '#000000',
  },
}

SCSS

$custom: #3f8edb;
$custom-light: #86aee6;
$custom-dark: #000000;

JSON

{
  "hex": "#3f8edb",
  "rgb": {
    "r": 63,
    "g": 142,
    "b": 219
  },
  "hsl": {
    "h": 209.615,
    "s": 68.421,
    "l": 55.294
  },
  "oklch": {
    "l": 0.6336,
    "c": 0.13955,
    "h": 250.5
  },
  "luminance": 0.25517
}

Semantic roles & 50–950 ramp

primary

#3F8EDB

secondary

#DCBA9A

accent

#933DEB

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0D1016

muted

#7D7F84

Preview Lab

Preview with #3F8EDB

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

Preview Lab → · Contrast checker → · Palette generator →