#3756AB#3756AB

#3756AB is a mid, vivid blue. Relative luminance 0.104; OKLCH L 47.7% C 0.141 H 266.1°. Best body text is #FFFFFF at 6.81:1 contrast (WCAG AA passes).

Color values

HEX	#3756AB
RGB	rgb(55, 86, 171)
HSL	hsl(224, 51%, 44%)
HSV	hsv(224, 68%, 67%)
CMYK	cmyk(67.8%, 49.7%, 0%, 32.9%)
CIE-LAB	lab(38.56, 17.39, -49.03)
CIE-LCH	lch(38.56, 52.02, 289.53°)
OKLab	oklab(47.66% -0.0095 -0.1406)
OKLCH	oklch(47.66% 0.141 266.1)
XYZ	xyz(12.2515, 10.4069, 39.8833)
Luminance	0.1041 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3756AB #AB8C37

analogous

#3790AB #3756AB #5237AB

triadic

#3756AB #AB3756 #56AB37

tetradic

#3756AB #AB3790 #AB8C37 #37AB52

square

#3756AB #AB3790 #AB8C37 #37AB52

split-complementary

#3756AB #AB5237 #90AB37

monochromatic

#19274E #283F7D #3756AB #5675C9 #859BD8

Accessibility & contrast

On white

6.81

#3756AB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#3756AB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3756AB

6.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3756AB	#FFFFFF	#000000	##FFFFFF
##3756AB	1.00	6.81	3.08	6.81
#FFFFFF	6.81	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2760AE

Deuteranopia (green-blind)

#0456A9

Tritanopia (blue-blind)

#006A78

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3756ab;
/* rgb */ color: rgb(55, 86, 171);
/* oklch */ color: oklch(47.7% 0.141 266.1);

Tailwind

colors: {
  custom: {
    50: '#7b85c5',
    500: '#3756ab',
    950: '#000000',
  },
}

SCSS

$custom: #3756ab;
$custom-light: #7b85c5;
$custom-dark: #000000;

JSON

{
  "hex": "#3756ab",
  "rgb": {
    "r": 55,
    "g": 86,
    "b": 171
  },
  "hsl": {
    "h": 223.966,
    "s": 51.327,
    "l": 44.314
  },
  "oklch": {
    "l": 0.47656,
    "c": 0.14089,
    "h": 266.1
  },
  "luminance": 0.10408
}

Semantic roles & 50–950 ramp

primary

#3756AB

secondary

#C1AF7C

accent

#B54DDB

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #3756AB

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

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