#3751AF#3751AF

#3751AF is a mid, vivid blue. Relative luminance 0.098; OKLCH L 46.9% C 0.153 H 268.3°. Best body text is #FFFFFF at 7.10:1 contrast (WCAG AA passes).

Color values

HEX	#3751AF
RGB	rgb(55, 81, 175)
HSL	hsl(227, 52%, 45%)
HSV	hsv(227, 69%, 69%)
CMYK	cmyk(68.6%, 53.7%, 0%, 31.4%)
CIE-LAB	lab(37.46, 22.13, -53.17)
CIE-LCH	lch(37.46, 57.59, 292.60°)
OKLab	oklab(46.91% -0.0045 -0.1528)
OKLCH	oklch(46.91% 0.153 268.3)
XYZ	xyz(12.2532, 9.7910, 41.7932)
Luminance	0.0979 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3751AF #AF9537

analogous

#378DAF #3751AF #5937AF

triadic

#3751AF #AF3751 #51AF37

tetradic

#3751AF #AF378D #AF9537 #37AF59

square

#3751AF #AF378D #AF9537 #37AF59

split-complementary

#3751AF #AF5937 #8DAF37

monochromatic

#1A2652 #283B80 #3751AF #5971CB #8799D9

Accessibility & contrast

On white

7.10

#3751AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#3751AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3751AF

7.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3751AF	#FFFFFF	#000000	##FFFFFF
##3751AF	1.00	7.10	2.96	7.10
#FFFFFF	7.10	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F5EB2

Deuteranopia (green-blind)

#0053AD

Tritanopia (blue-blind)

#006778

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #3751af;
/* rgb */ color: rgb(55, 81, 175);
/* oklch */ color: oklch(46.9% 0.153 268.3);

Tailwind

colors: {
  custom: {
    50: '#7c81c8',
    500: '#3751af',
    950: '#000000',
  },
}

SCSS

$custom: #3751af;
$custom-light: #7c81c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3751af",
  "rgb": {
    "r": 55,
    "g": 81,
    "b": 175
  },
  "hsl": {
    "h": 227,
    "s": 52.174,
    "l": 45.098
  },
  "oklch": {
    "l": 0.46911,
    "c": 0.15291,
    "h": 268.3
  },
  "luminance": 0.09792
}

Semantic roles & 50–950 ramp

primary

#3751AF

secondary

#C3B47F

accent

#BD4CDC

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3751AF

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

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