#3750AF#3750AF

#3750AF is a mid, vivid blue. Relative luminance 0.096; OKLCH L 46.7% C 0.154 H 268.6°. Best body text is #FFFFFF at 7.17:1 contrast (WCAG AA passes).

Color values

HEX	#3750AF
RGB	rgb(55, 80, 175)
HSL	hsl(228, 52%, 45%)
HSV	hsv(228, 69%, 69%)
CMYK	cmyk(68.6%, 54.3%, 0%, 31.4%)
CIE-LAB	lab(37.19, 22.79, -53.61)
CIE-LCH	lch(37.19, 58.25, 293.03°)
OKLab	oklab(46.71% -0.0036 -0.1541)
OKLCH	oklch(46.71% 0.154 268.6)
XYZ	xyz(12.1794, 9.6435, 41.7687)
Luminance	0.0964 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3750AF #AF9637

analogous

#378CAF #3750AF #5A37AF

triadic

#3750AF #AF3750 #50AF37

tetradic

#3750AF #AF378C #AF9637 #37AF5A

square

#3750AF #AF378C #AF9637 #37AF5A

split-complementary

#3750AF #AF5A37 #8CAF37

monochromatic

#1A2552 #283B80 #3750AF #5970CB #8798D9

Accessibility & contrast

On white

7.17

#3750AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.93

#3750AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3750AF

7.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3750AF	#FFFFFF	#000000	##FFFFFF
##3750AF	1.00	7.17	2.93	7.17
#FFFFFF	7.17	1.00	21.00	1.00
#000000	2.93	21.00	1.00	21.00
##FFFFFF	7.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#085DB2

Deuteranopia (green-blind)

#0052AD

Tritanopia (blue-blind)

#006777

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #3750af;
/* rgb */ color: rgb(55, 80, 175);
/* oklch */ color: oklch(46.7% 0.154 268.6);

Tailwind

colors: {
  custom: {
    50: '#7c80c8',
    500: '#3750af',
    950: '#000000',
  },
}

SCSS

$custom: #3750af;
$custom-light: #7c80c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3750af",
  "rgb": {
    "r": 55,
    "g": 80,
    "b": 175
  },
  "hsl": {
    "h": 227.5,
    "s": 52.174,
    "l": 45.098
  },
  "oklch": {
    "l": 0.46708,
    "c": 0.15418,
    "h": 268.6
  },
  "luminance": 0.09645
}

Semantic roles & 50–950 ramp

primary

#3750AF

secondary

#C3B57F

accent

#BE4CDC

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3750AF

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

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