#3750BA#3750BA

#3750BA is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.6% C 0.169 H 269.0°. Best body text is #FFFFFF at 6.96:1 contrast (WCAG AA passes).

Color values

HEX	#3750BA
RGB	rgb(55, 80, 186)
HSL	hsl(229, 54%, 47%)
HSV	hsv(229, 70%, 73%)
CMYK	cmyk(70.4%, 57%, 0%, 27.1%)
CIE-LAB	lab(38.01, 26.81, -58.77)
CIE-LCH	lch(38.01, 64.59, 294.52°)
OKLab	oklab(47.58% -0.0031 -0.1693)
OKLCH	oklch(47.58% 0.169 269)
XYZ	xyz(13.3041, 10.0934, 47.6919)
Luminance	0.1009 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3750BA #BAA137

analogous

#3791BA #3750BA #6037BA

triadic

#3750BA #BA3750 #50BA37

tetradic

#3750BA #BA3791 #BAA137 #37BA60

square

#3750BA #BA3791 #BAA137 #37BA60

split-complementary

#3750BA #BA6037 #91BA37

monochromatic

#1B275C #293C8B #3750BA #5F74D0 #8E9DDE

Accessibility & contrast

On white

6.96

#3750BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#3750BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3750BA

6.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3750BA	#FFFFFF	#000000	##FFFFFF
##3750BA	1.00	6.96	3.02	6.96
#FFFFFF	6.96	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060BE

Deuteranopia (green-blind)

#0054B8

Tritanopia (blue-blind)

#006A7D

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #3750ba;
/* rgb */ color: rgb(55, 80, 186);
/* oklch */ color: oklch(47.6% 0.169 269.0);

Tailwind

colors: {
  custom: {
    50: '#7e80d0',
    500: '#3750ba',
    950: '#000000',
  },
}

SCSS

$custom: #3750ba;
$custom-light: #7e80d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3750ba",
  "rgb": {
    "r": 55,
    "g": 80,
    "b": 186
  },
  "hsl": {
    "h": 228.55,
    "s": 54.357,
    "l": 47.255
  },
  "oklch": {
    "l": 0.47577,
    "c": 0.16935,
    "h": 269
  },
  "luminance": 0.10095
}

Semantic roles & 50–950 ramp

primary

#3750BA

secondary

#C8BB85

accent

#C24ADE

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #3750BA

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

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