#3754B1#3754B1

#3754B1 is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.7% C 0.152 H 267.3°. Best body text is #FFFFFF at 6.85:1 contrast (WCAG AA passes).

Color values

HEX	#3754B1
RGB	rgb(55, 84, 177)
HSL	hsl(226, 53%, 45%)
HSV	hsv(226, 69%, 69%)
CMYK	cmyk(68.9%, 52.5%, 0%, 30.6%)
CIE-LAB	lab(38.42, 20.90, -52.80)
CIE-LCH	lch(38.42, 56.79, 291.60°)
OKLab	oklab(47.68% -0.007 -0.1517)
OKLCH	oklch(47.68% 0.152 267.3)
XYZ	xyz(12.6789, 10.3260, 42.9114)
Luminance	0.1033 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3754B1 #B19437

analogous

#3791B1 #3754B1 #5737B1

triadic

#3754B1 #B13754 #54B137

tetradic

#3754B1 #B13791 #B19437 #37B157

square

#3754B1 #B13791 #B19437 #37B157

split-complementary

#3754B1 #B15737 #91B137

monochromatic

#1A2854 #283E82 #3754B1 #5A75CC #889CDA

Accessibility & contrast

On white

6.85

#3754B1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#3754B1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3754B1

6.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3754B1	#FFFFFF	#000000	##FFFFFF
##3754B1	1.00	6.85	3.07	6.85
#FFFFFF	6.85	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1860B4

Deuteranopia (green-blind)

#0055AF

Tritanopia (blue-blind)

#006A7A

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3754b1;
/* rgb */ color: rgb(55, 84, 177);
/* oklch */ color: oklch(47.7% 0.152 267.3);

Tailwind

colors: {
  custom: {
    50: '#7c83c9',
    500: '#3754b1',
    950: '#000000',
  },
}

SCSS

$custom: #3754b1;
$custom-light: #7c83c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3754b1",
  "rgb": {
    "r": 55,
    "g": 84,
    "b": 177
  },
  "hsl": {
    "h": 225.738,
    "s": 52.586,
    "l": 45.49
  },
  "oklch": {
    "l": 0.47679,
    "c": 0.15188,
    "h": 267.3
  },
  "luminance": 0.10327
}

Semantic roles & 50–950 ramp

primary

#3754B1

secondary

#C4B480

accent

#BA4CDC

background

#F8F8FC

surface

#EFEFF8

border

#CACAD1

text

#0B0A13

muted

#7C7C82

Preview Lab

Preview with #3754B1

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

Preview Lab → · Contrast checker → · Palette generator →