#3F88B2#3F88B2

#3F88B2 is a mid, moderate cyan. Relative luminance 0.219; OKLCH L 59.8% C 0.097 H 236.8°. Best body text is #000000 at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#3F88B2
RGB	rgb(63, 136, 178)
HSL	hsl(202, 48%, 47%)
HSV	hsv(202, 65%, 70%)
CMYK	cmyk(64.6%, 23.6%, 0%, 30.2%)
CIE-LAB	lab(53.90, -9.51, -28.84)
CIE-LCH	lch(53.90, 30.36, 251.75°)
OKLab	oklab(59.83% -0.053 -0.0809)
OKLCH	oklch(59.83% 0.097 236.8)
XYZ	xyz(18.8868, 21.8775, 45.3383)
Luminance	0.2188 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F88B2 #B2693F

analogous

#3FB2A3 #3F88B2 #3F4FB2

triadic

#3F88B2 #B23F88 #88B23F

tetradic

#3F88B2 #A33FB2 #B2693F #4FB23F

square

#3F88B2 #A33FB2 #B2693F #4FB23F

split-complementary

#3F88B2 #B23F4F #B2A33F

monochromatic

#1F4358 #2F6585 #3F88B2 #66A4C9 #93BFD9

Accessibility & contrast

On white

3.91

#3F88B2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.38

#3F88B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F88B2

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F88B2	#FFFFFF	#000000	##000000
##3F88B2	1.00	3.91	5.38	5.38
#FFFFFF	3.91	1.00	21.00	21.00
#000000	5.38	21.00	1.00	1.00
##000000	5.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7487B4

Deuteranopia (green-blind)

#647CB1

Tritanopia (blue-blind)

#009396

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3f88b2;
/* rgb */ color: rgb(63, 136, 178);
/* oklch */ color: oklch(59.8% 0.097 236.8);

Tailwind

colors: {
  custom: {
    50: '#80aac9',
    500: '#3f88b2',
    950: '#000000',
  },
}

SCSS

$custom: #3f88b2;
$custom-light: #80aac9;
$custom-dark: #000000;

JSON

{
  "hex": "#3f88b2",
  "rgb": {
    "r": 63,
    "g": 136,
    "b": 178
  },
  "hsl": {
    "h": 201.913,
    "s": 47.718,
    "l": 47.255
  },
  "oklch": {
    "l": 0.5983,
    "c": 0.09675,
    "h": 236.8
  },
  "luminance": 0.21879
}

Semantic roles & 50–950 ramp

primary

#3F88B2

secondary

#C49E89

accent

#8250D7

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3F88B2

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

Preview Lab → · Contrast checker → · Palette generator →