#3870BE#3870BE

#3870BE is a mid, vivid cyan. Relative luminance 0.161; OKLCH L 54.7% C 0.136 H 257.2°. Best body text is #FFFFFF at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#3870BE
RGB	rgb(56, 112, 190)
HSL	hsl(215, 54%, 48%)
HSV	hsv(215, 71%, 75%)
CMYK	cmyk(70.5%, 41.1%, 0%, 25.5%)
CIE-LAB	lab(47.16, 7.88, -46.36)
CIE-LCH	lch(47.16, 47.02, 279.64°)
OKLab	oklab(54.66% -0.03 -0.1323)
OKLCH	oklch(54.66% 0.136 257.2)
XYZ	xyz(16.7159, 16.1450, 50.9406)
Luminance	0.1615 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3870BE #BE8638

analogous

#38B3BE #3870BE #4338BE

triadic

#3870BE #BE3870 #70BE38

tetradic

#3870BE #BE38B3 #BE8638 #38BE43

square

#3870BE #BE38B3 #BE8638 #38BE43

split-complementary

#3870BE #BE4338 #B3BE38

monochromatic

#1C385F #2A548F #3870BE #6291D1 #92B2DF

Accessibility & contrast

On white

4.97

#3870BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#3870BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3870BE

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3870BE	#FFFFFF	#000000	##FFFFFF
##3870BE	1.00	4.97	4.23	4.97
#FFFFFF	4.97	1.00	21.00	1.00
#000000	4.23	21.00	1.00	21.00
##FFFFFF	4.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B77C1

Deuteranopia (green-blind)

#366ABC

Tritanopia (blue-blind)

#00828E

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3870be;
/* rgb */ color: rgb(56, 112, 190);
/* oklch */ color: oklch(54.7% 0.136 257.2);

Tailwind

colors: {
  custom: {
    50: '#7e98d2',
    500: '#3870be',
    950: '#000000',
  },
}

SCSS

$custom: #3870be;
$custom-light: #7e98d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3870be",
  "rgb": {
    "r": 56,
    "g": 112,
    "b": 190
  },
  "hsl": {
    "h": 214.925,
    "s": 54.472,
    "l": 48.235
  },
  "oklch": {
    "l": 0.54663,
    "c": 0.13566,
    "h": 257.2
  },
  "luminance": 0.16147
}

Semantic roles & 50–950 ramp

primary

#3870BE

secondary

#CAAE88

accent

#A04ADE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #3870BE

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

Preview Lab → · Contrast checker → · Palette generator →