#3F88D5#3F88D5

#3F88D5 is a mid, vivid cyan. Relative luminance 0.235; OKLCH L 61.7% C 0.138 H 252.1°. Best body text is #000000 at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#3F88D5
RGB	rgb(63, 136, 213)
HSL	hsl(211, 64%, 54%)
HSV	hsv(211, 70%, 84%)
CMYK	cmyk(70.4%, 36.2%, 0%, 16.5%)
CIE-LAB	lab(55.55, 2.54, -46.12)
CIE-LCH	lch(55.55, 46.19, 273.15°)
OKLab	oklab(61.68% -0.0425 -0.1312)
OKLCH	oklch(61.68% 0.138 252.1)
XYZ	xyz(22.8598, 23.4667, 66.2627)
Luminance	0.2347 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F88D5 #D58C3F

analogous

#3FD3D5 #3F88D5 #413FD5

triadic

#3F88D5 #D53F88 #88D53F

tetradic

#3F88D5 #D53FD3 #D58C3F #3FD541

square

#3F88D5 #D53FD3 #D58C3F #3FD541

split-complementary

#3F88D5 #D5413F #D3D53F

monochromatic

#1C4B7E #276AB0 #3F88D5 #71A7E0 #A3C6EB

Accessibility & contrast

On white

3.69

#3F88D5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.69

#3F88D5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F88D5

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F88D5	#FFFFFF	#000000	##000000
##3F88D5	1.00	3.69	5.69	5.69
#FFFFFF	3.69	1.00	21.00	21.00
#000000	5.69	21.00	1.00	1.00
##000000	5.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#658DD8

Deuteranopia (green-blind)

#4F7FD3

Tritanopia (blue-blind)

#009AA4

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #3f88d5;
/* rgb */ color: rgb(63, 136, 213);
/* oklch */ color: oklch(61.7% 0.138 252.1);

Tailwind

colors: {
  custom: {
    50: '#85aae2',
    500: '#3f88d5',
    950: '#000000',
  },
}

SCSS

$custom: #3f88d5;
$custom-light: #85aae2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f88d5",
  "rgb": {
    "r": 63,
    "g": 136,
    "b": 213
  },
  "hsl": {
    "h": 210.8,
    "s": 64.103,
    "l": 54.118
  },
  "oklch": {
    "l": 0.61675,
    "c": 0.13787,
    "h": 252.1
  },
  "luminance": 0.23469
}

Semantic roles & 50–950 ramp

primary

#3F88D5

secondary

#D8B998

accent

#9641E7

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3F88D5

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

Preview Lab → · Contrast checker → · Palette generator →