#3871B1#3871B1

#3871B1 is a mid, moderate cyan. Relative luminance 0.158; OKLCH L 54.1% C 0.117 H 253.1°. Best body text is #FFFFFF at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#3871B1
RGB	rgb(56, 113, 177)
HSL	hsl(212, 52%, 46%)
HSV	hsv(212, 68%, 69%)
CMYK	cmyk(68.4%, 36.2%, 0%, 30.6%)
CIE-LAB	lab(46.74, 2.55, -39.49)
CIE-LCH	lch(46.74, 39.57, 273.69°)
OKLab	oklab(54.1% -0.0341 -0.1122)
OKLCH	oklch(54.1% 0.117 253.1)
XYZ	xyz(15.4689, 15.8237, 43.8255)
Luminance	0.1583 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3871B1 #B17838

analogous

#38ADB1 #3871B1 #3C38B1

triadic

#3871B1 #B13871 #71B138

tetradic

#3871B1 #B138AD #B17838 #38B13C

square

#3871B1 #B138AD #B17838 #38B13C

split-complementary

#3871B1 #B13C38 #ADB138

monochromatic

#1B3654 #295383 #3871B1 #5B90CB #8AAFDA

Accessibility & contrast

On white

5.04

#3871B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.16

#3871B1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3871B1

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3871B1	#FFFFFF	#000000	##FFFFFF
##3871B1	1.00	5.04	4.16	5.04
#FFFFFF	5.04	1.00	21.00	1.00
#000000	4.16	21.00	1.00	21.00
##FFFFFF	5.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5575B4

Deuteranopia (green-blind)

#436AB0

Tritanopia (blue-blind)

#008088

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3871b1;
/* rgb */ color: rgb(56, 113, 177);
/* oklch */ color: oklch(54.1% 0.117 253.1);

Tailwind

colors: {
  custom: {
    50: '#7c99c8',
    500: '#3871b1',
    950: '#000000',
  },
}

SCSS

$custom: #3871b1;
$custom-light: #7c99c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3871b1",
  "rgb": {
    "r": 56,
    "g": 113,
    "b": 177
  },
  "hsl": {
    "h": 211.736,
    "s": 51.931,
    "l": 45.686
  },
  "oklch": {
    "l": 0.54102,
    "c": 0.11724,
    "h": 253.1
  },
  "luminance": 0.15825
}

Semantic roles & 50–950 ramp

primary

#3871B1

secondary

#C4A481

accent

#984CDB

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0D13

muted

#7C7E82

Preview Lab

Preview with #3871B1

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

Preview Lab → · Contrast checker → · Palette generator →