#3754B4#3754B4

#3754B4 is a mid, vivid blue. Relative luminance 0.104; OKLCH L 47.9% C 0.156 H 267.5°. Best body text is #FFFFFF at 6.80:1 contrast (WCAG AA passes).

Color values

HEX	#3754B4
RGB	rgb(55, 84, 180)
HSL	hsl(226, 53%, 46%)
HSV	hsv(226, 69%, 71%)
CMYK	cmyk(69.4%, 53.3%, 0%, 29.4%)
CIE-LAB	lab(38.63, 22.00, -54.23)
CIE-LCH	lch(38.63, 58.53, 292.09°)
OKLab	oklab(47.91% -0.0068 -0.1559)
OKLCH	oklch(47.91% 0.156 267.5)
XYZ	xyz(12.9812, 10.4469, 44.5035)
Luminance	0.1045 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3754B4 #B49737

analogous

#3792B4 #3754B4 #5837B4

triadic

#3754B4 #B43754 #54B437

tetradic

#3754B4 #B43792 #B49737 #37B458

square

#3754B4 #B43792 #B49737 #37B458

split-complementary

#3754B4 #B45837 #92B437

monochromatic

#1A2856 #293E85 #3754B4 #5B76CD #8A9DDB

Accessibility & contrast

On white

6.80

#3754B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#3754B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3754B4

6.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3754B4	#FFFFFF	#000000	##FFFFFF
##3754B4	1.00	6.80	3.09	6.80
#FFFFFF	6.80	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1161B7

Deuteranopia (green-blind)

#0056B2

Tritanopia (blue-blind)

#006B7C

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #3754b4;
/* rgb */ color: rgb(55, 84, 180);
/* oklch */ color: oklch(47.9% 0.156 267.5);

Tailwind

colors: {
  custom: {
    50: '#7d83cb',
    500: '#3754b4',
    950: '#000000',
  },
}

SCSS

$custom: #3754b4;
$custom-light: #7d83cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3754b4",
  "rgb": {
    "r": 55,
    "g": 84,
    "b": 180
  },
  "hsl": {
    "h": 226.08,
    "s": 53.191,
    "l": 46.078
  },
  "oklch": {
    "l": 0.47907,
    "c": 0.15607,
    "h": 267.5
  },
  "luminance": 0.10448
}

Semantic roles & 50–950 ramp

primary

#3754B4

secondary

#C6B681

accent

#BB4BDD

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3754B4

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

Preview Lab → · Contrast checker → · Palette generator →