#3750BE#3750BE

#3750BE is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.9% C 0.175 H 269.0°. Best body text is #FFFFFF at 6.88:1 contrast (WCAG AA passes).

Color values

HEX	#3750BE
RGB	rgb(55, 80, 190)
HSL	hsl(229, 55%, 48%)
HSV	hsv(229, 71%, 75%)
CMYK	cmyk(71.1%, 57.9%, 0%, 25.5%)
CIE-LAB	lab(38.32, 28.27, -60.61)
CIE-LCH	lch(38.32, 66.88, 295.00°)
OKLab	oklab(47.9% -0.0029 -0.1747)
OKLCH	oklch(47.9% 0.175 269)
XYZ	xyz(13.7353, 10.2659, 49.9629)
Luminance	0.1027 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3750BE #BEA537

analogous

#3793BE #3750BE #6137BE

triadic

#3750BE #BE3750 #50BE37

tetradic

#3750BE #BE3793 #BEA537 #37BE61

square

#3750BE #BE3793 #BEA537 #37BE61

split-complementary

#3750BE #BE6137 #93BE37

monochromatic

#1C285F #293C8F #3750BE #6176D1 #909FDF

Accessibility & contrast

On white

6.88

#3750BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#3750BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3750BE

6.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3750BE	#FFFFFF	#000000	##FFFFFF
##3750BE	1.00	6.88	3.05	6.88
#FFFFFF	6.88	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061C2

Deuteranopia (green-blind)

#0054BC

Tritanopia (blue-blind)

#006B7F

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3750be;
/* rgb */ color: rgb(55, 80, 190);
/* oklch */ color: oklch(47.9% 0.175 269.0);

Tailwind

colors: {
  custom: {
    50: '#7f80d2',
    500: '#3750be',
    950: '#000000',
  },
}

SCSS

$custom: #3750be;
$custom-light: #7f80d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3750be",
  "rgb": {
    "r": 55,
    "g": 80,
    "b": 190
  },
  "hsl": {
    "h": 228.889,
    "s": 55.102,
    "l": 48.039
  },
  "oklch": {
    "l": 0.47902,
    "c": 0.17477,
    "h": 269
  },
  "luminance": 0.10267
}

Semantic roles & 50–950 ramp

primary

#3750BE

secondary

#CABD87

accent

#C349DE

background

#F8F7FD

surface

#F0EEFA

border

#CBC9D3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #3750BE

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

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