#3746B0#3746B0

#3746B0 is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.8% C 0.168 H 271.7°. Best body text is #FFFFFF at 7.88:1 contrast (WCAG AA passes).

Color values

HEX	#3746B0
RGB	rgb(55, 70, 176)
HSL	hsl(233, 52%, 45%)
HSV	hsv(233, 69%, 69%)
CMYK	cmyk(68.8%, 60.2%, 0%, 31%)
CIE-LAB	lab(34.65, 29.68, -58.33)
CIE-LCH	lch(34.65, 65.44, 296.97°)
OKLab	oklab(44.83% 0.0049 -0.1681)
OKLCH	oklch(44.83% 0.168 271.7)
XYZ	xyz(11.5995, 8.3260, 42.0617)
Luminance	0.0833 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3746B0 #B0A137

analogous

#3782B0 #3746B0 #6437B0

triadic

#3746B0 #B03746 #46B037

tetradic

#3746B0 #B03782 #B0A137 #37B064

square

#3746B0 #B03782 #B0A137 #37B064

split-complementary

#3746B0 #B06437 #82B037

monochromatic

#1A2153 #283381 #3746B0 #5967CB #8892DA

Accessibility & contrast

On white

7.88

#3746B0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#3746B0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3746B0

7.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3746B0	#FFFFFF	#000000	##FFFFFF
##3746B0	1.00	7.88	2.67	7.88
#FFFFFF	7.88	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B4

Deuteranopia (green-blind)

#004CAE

Tritanopia (blue-blind)

#006074

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #3746b0;
/* rgb */ color: rgb(55, 70, 176);
/* oklch */ color: oklch(44.8% 0.168 271.7);

Tailwind

colors: {
  custom: {
    50: '#7d79c8',
    500: '#3746b0',
    950: '#000000',
  },
}

SCSS

$custom: #3746b0;
$custom-light: #7d79c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3746b0",
  "rgb": {
    "r": 55,
    "g": 70,
    "b": 176
  },
  "hsl": {
    "h": 232.562,
    "s": 52.381,
    "l": 45.294
  },
  "oklch": {
    "l": 0.44832,
    "c": 0.16822,
    "h": 271.7
  },
  "luminance": 0.08327
}

Semantic roles & 50–950 ramp

primary

#3746B0

secondary

#C4BB7F

accent

#CA4CDC

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0913

muted

#7C7B82

Preview Lab

Preview with #3746B0

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

Preview Lab → · Contrast checker → · Palette generator →