#3870BD#3870BD

#3870BD is a mid, vivid cyan. Relative luminance 0.161; OKLCH L 54.6% C 0.134 H 257.0°. Best body text is #FFFFFF at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#3870BD
RGB	rgb(56, 112, 189)
HSL	hsl(215, 54%, 48%)
HSV	hsv(215, 70%, 74%)
CMYK	cmyk(70.4%, 40.7%, 0%, 25.9%)
CIE-LAB	lab(47.11, 7.51, -45.87)
CIE-LCH	lch(47.11, 46.48, 279.30°)
OKLab	oklab(54.6% -0.0302 -0.1309)
OKLCH	oklch(54.6% 0.134 257)
XYZ	xyz(16.6070, 16.1015, 50.3669)
Luminance	0.1610 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3870BD #BD8538

analogous

#38B2BD #3870BD #4238BD

triadic

#3870BD #BD3870 #70BD38

tetradic

#3870BD #BD38B2 #BD8538 #38BD42

square

#3870BD #BD38B2 #BD8538 #38BD42

split-complementary

#3870BD #BD4238 #B2BD38

monochromatic

#1C385F #2A548E #3870BD #6290D0 #91B2DE

Accessibility & contrast

On white

4.98

#3870BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.22

#3870BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3870BD

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3870BD	#FFFFFF	#000000	##FFFFFF
##3870BD	1.00	4.98	4.22	4.98
#FFFFFF	4.98	1.00	21.00	1.00
#000000	4.22	21.00	1.00	21.00
##FFFFFF	4.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C76C0

Deuteranopia (green-blind)

#376ABB

Tritanopia (blue-blind)

#00828D

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3870bd;
/* rgb */ color: rgb(56, 112, 189);
/* oklch */ color: oklch(54.6% 0.134 257.0);

Tailwind

colors: {
  custom: {
    50: '#7e98d1',
    500: '#3870bd',
    950: '#000000',
  },
}

SCSS

$custom: #3870bd;
$custom-light: #7e98d1;
$custom-dark: #000000;

JSON

{
  "hex": "#3870bd",
  "rgb": {
    "r": 56,
    "g": 112,
    "b": 189
  },
  "hsl": {
    "h": 214.737,
    "s": 54.286,
    "l": 48.039
  },
  "oklch": {
    "l": 0.54601,
    "c": 0.13432,
    "h": 257
  },
  "luminance": 0.16103
}

Semantic roles & 50–950 ramp

primary

#3870BD

secondary

#C9AE87

accent

#A04ADE

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #3870BD

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

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