#3F88E3#3F88E3

#3F88E3 is a light, vivid cyan. Relative luminance 0.242; OKLCH L 62.5% C 0.156 H 255.4°. Best body text is #000000 at 5.84:1 contrast (WCAG AA passes).

Color values

HEX	#3F88E3
RGB	rgb(63, 136, 227)
HSL	hsl(213, 75%, 57%)
HSV	hsv(213, 72%, 89%)
CMYK	cmyk(72.2%, 40.1%, 0%, 11%)
CIE-LAB	lab(56.30, 7.51, -52.79)
CIE-LCH	lch(56.30, 53.32, 278.10°)
OKLab	oklab(62.5% -0.0392 -0.1507)
OKLCH	oklch(62.5% 0.156 255.4)
XYZ	xyz(24.7141, 24.2084, 76.0283)
Luminance	0.2421 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F88E3 #E39A3F

analogous

#3FDAE3 #3F88E3 #483FE3

triadic

#3F88E3 #E33F88 #88E33F

tetradic

#3F88E3 #E33FDA #E39A3F #3FE348

square

#3F88E3 #E33FDA #E39A3F #3FE348

split-complementary

#3F88E3 #E3483F #DAE33F

monochromatic

#154D92 #1D69C8 #3F88E3 #74A9EB #AACAF3

Accessibility & contrast

On white

3.59

#3F88E3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.84

#3F88E3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F88E3

5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F88E3	#FFFFFF	#000000	##000000
##3F88E3	1.00	3.59	5.84	5.84
#FFFFFF	3.59	1.00	21.00	21.00
#000000	5.84	21.00	1.00	1.00
##000000	5.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D8FE7

Deuteranopia (green-blind)

#4280E1

Tritanopia (blue-blind)

#009DAA

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #3f88e3;
/* rgb */ color: rgb(63, 136, 227);
/* oklch */ color: oklch(62.5% 0.156 255.4);

Tailwind

colors: {
  custom: {
    50: '#88aaec',
    500: '#3f88e3',
    950: '#000000',
  },
}

SCSS

$custom: #3f88e3;
$custom-light: #88aaec;
$custom-dark: #000000;

JSON

{
  "hex": "#3f88e3",
  "rgb": {
    "r": 63,
    "g": 136,
    "b": 227
  },
  "hsl": {
    "h": 213.293,
    "s": 74.545,
    "l": 56.863
  },
  "oklch": {
    "l": 0.625,
    "c": 0.15569,
    "h": 255.4
  },
  "luminance": 0.24211
}

Semantic roles & 50–950 ramp

primary

#3F88E3

secondary

#E0C39D

accent

#9E37F1

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #3F88E3

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

Preview Lab → · Contrast checker → · Palette generator →