#3866AF#3866AF

#3866AF is a mid, vivid blue. Relative luminance 0.134; OKLCH L 51.5% C 0.127 H 259.3°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#3866AF
RGB	rgb(56, 102, 175)
HSL	hsl(217, 52%, 45%)
HSV	hsv(217, 68%, 69%)
CMYK	cmyk(68%, 41.7%, 0%, 31.4%)
CIE-LAB	lab(43.41, 8.70, -43.61)
CIE-LCH	lch(43.41, 44.47, 281.28°)
OKLab	oklab(51.48% -0.0236 -0.1244)
OKLCH	oklch(51.48% 0.127 259.3)
XYZ	xyz(14.1173, 13.4372, 42.3988)
Luminance	0.1344 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3866AF #AF8138

analogous

#38A1AF #3866AF #4638AF

triadic

#3866AF #AF3866 #66AF38

tetradic

#3866AF #AF38A1 #AF8138 #38AF46

square

#3866AF #AF38A1 #AF8138 #38AF46

split-complementary

#3866AF #AF4638 #A1AF38

monochromatic

#1A3052 #294B81 #3866AF #5A85CA #88A8D9

Accessibility & contrast

On white

5.69

#3866AF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#3866AF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3866AF

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3866AF	#FFFFFF	#000000	##FFFFFF
##3866AF	1.00	5.69	3.69	5.69
#FFFFFF	5.69	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#446DB2

Deuteranopia (green-blind)

#3161AE

Tritanopia (blue-blind)

#007782

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3866af;
/* rgb */ color: rgb(56, 102, 175);
/* oklch */ color: oklch(51.5% 0.127 259.3);

Tailwind

colors: {
  custom: {
    50: '#7c91c7',
    500: '#3866af',
    950: '#000000',
  },
}

SCSS

$custom: #3866af;
$custom-light: #7c91c7;
$custom-dark: #000000;

JSON

{
  "hex": "#3866af",
  "rgb": {
    "r": 56,
    "g": 102,
    "b": 175
  },
  "hsl": {
    "h": 216.807,
    "s": 51.515,
    "l": 45.294
  },
  "oklch": {
    "l": 0.51476,
    "c": 0.12659,
    "h": 259.3
  },
  "luminance": 0.13439
}

Semantic roles & 50–950 ramp

primary

#3866AF

secondary

#C3A980

accent

#A44DDB

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #3866AF

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

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