#3754BF#3754BF

#3754BF is a mid, vivid blue. Relative luminance 0.109; OKLCH L 48.8% C 0.171 H 268.0°. Best body text is #FFFFFF at 6.60:1 contrast (WCAG AA passes).

Color values

HEX	#3754BF
RGB	rgb(55, 84, 191)
HSL	hsl(227, 55%, 48%)
HSV	hsv(227, 71%, 75%)
CMYK	cmyk(71.2%, 56%, 0%, 25.1%)
CIE-LAB	lab(39.43, 26.04, -59.38)
CIE-LCH	lch(39.43, 64.84, 293.68°)
OKLab	oklab(48.76% -0.0061 -0.1711)
OKLCH	oklch(48.76% 0.171 268)
XYZ	xyz(14.1466, 10.9130, 50.6410)
Luminance	0.1091 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3754BF #BFA237

analogous

#3798BF #3754BF #5E37BF

triadic

#3754BF #BF3754 #54BF37

tetradic

#3754BF #BF3798 #BFA237 #37BF5E

square

#3754BF #BF3798 #BFA237 #37BF5E

split-complementary

#3754BF #BF5E37 #98BF37

monochromatic

#1C2A60 #293F8F #3754BF #6279D2 #91A2DF

Accessibility & contrast

On white

6.60

#3754BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#3754BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3754BF

6.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3754BF	#FFFFFF	#000000	##FFFFFF
##3754BF	1.00	6.60	3.18	6.60
#FFFFFF	6.60	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C3

Deuteranopia (green-blind)

#0057BD

Tritanopia (blue-blind)

#006E81

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #3754bf;
/* rgb */ color: rgb(55, 84, 191);
/* oklch */ color: oklch(48.8% 0.171 268.0);

Tailwind

colors: {
  custom: {
    50: '#7f83d3',
    500: '#3754bf',
    950: '#000000',
  },
}

SCSS

$custom: #3754bf;
$custom-light: #7f83d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3754bf",
  "rgb": {
    "r": 55,
    "g": 84,
    "b": 191
  },
  "hsl": {
    "h": 227.206,
    "s": 55.285,
    "l": 48.235
  },
  "oklch": {
    "l": 0.48763,
    "c": 0.17118,
    "h": 268
  },
  "luminance": 0.10914
}

Semantic roles & 50–950 ramp

primary

#3754BF

secondary

#CABC88

accent

#BF49DF

background

#F8F8FD

surface

#F0EFFA

border

#CBCAD3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #3754BF

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

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