#3871B0#3871B0

#3871B0 is a mid, moderate cyan. Relative luminance 0.158; OKLCH L 54.0% C 0.116 H 252.7°. Best body text is #FFFFFF at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#3871B0
RGB	rgb(56, 113, 176)
HSL	hsl(212, 52%, 45%)
HSV	hsv(212, 68%, 69%)
CMYK	cmyk(68.2%, 35.8%, 0%, 31%)
CIE-LAB	lab(46.69, 2.19, -38.99)
CIE-LCH	lch(46.69, 39.05, 273.21°)
OKLab	oklab(54.04% -0.0344 -0.1107)
OKLCH	oklch(54.04% 0.116 252.7)
XYZ	xyz(15.3696, 15.7840, 43.3025)
Luminance	0.1579 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3871B0 #B07738

analogous

#38ADB0 #3871B0 #3B38B0

triadic

#3871B0 #B03871 #71B038

tetradic

#3871B0 #B038AD #B07738 #38B03B

square

#3871B0 #B038AD #B07738 #38B03B

split-complementary

#3871B0 #B03B38 #ADB038

monochromatic

#1A3553 #295382 #3871B0 #5B90CB #89AFD9

Accessibility & contrast

On white

5.05

#3871B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.16

#3871B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3871B0

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3871B0	#FFFFFF	#000000	##FFFFFF
##3871B0	1.00	5.05	4.16	5.05
#FFFFFF	5.05	1.00	21.00	1.00
#000000	4.16	21.00	1.00	21.00
##FFFFFF	5.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5575B3

Deuteranopia (green-blind)

#446AAF

Tritanopia (blue-blind)

#008088

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3871b0;
/* rgb */ color: rgb(56, 113, 176);
/* oklch */ color: oklch(54.0% 0.116 252.7);

Tailwind

colors: {
  custom: {
    50: '#7c99c8',
    500: '#3871b0',
    950: '#000000',
  },
}

SCSS

$custom: #3871b0;
$custom-light: #7c99c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3871b0",
  "rgb": {
    "r": 56,
    "g": 113,
    "b": 176
  },
  "hsl": {
    "h": 211.5,
    "s": 51.724,
    "l": 45.49
  },
  "oklch": {
    "l": 0.54044,
    "c": 0.11592,
    "h": 252.7
  },
  "luminance": 0.15786
}

Semantic roles & 50–950 ramp

primary

#3871B0

secondary

#C4A480

accent

#974DDB

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0A0D13

muted

#7C7E82

Preview Lab

Preview with #3871B0

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

Preview Lab → · Contrast checker → · Palette generator →