#3746A0#3746A0

#3746A0 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.5% C 0.146 H 271.8°. Best body text is #FFFFFF at 8.25:1 contrast (WCAG AA passes).

Color values

HEX	#3746A0
RGB	rgb(55, 70, 160)
HSL	hsl(231, 49%, 42%)
HSV	hsv(231, 66%, 63%)
CMYK	cmyk(65.6%, 56.3%, 0%, 37.3%)
CIE-LAB	lab(33.41, 23.91, -50.77)
CIE-LCH	lch(33.41, 56.12, 295.21°)
OKLab	oklab(43.52% 0.0046 -0.1459)
OKLCH	oklch(43.52% 0.146 271.8)
XYZ	xyz(10.1087, 7.7297, 34.2102)
Luminance	0.0773 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3746A0 #A09137

analogous

#377AA0 #3746A0 #5D37A0

triadic

#3746A0 #A03746 #46A037

tetradic

#3746A0 #A0377A #A09137 #37A05D

square

#3746A0 #A0377A #A09137 #37A05D

split-complementary

#3746A0 #A05D37 #7AA037

monochromatic

#181E45 #273272 #3746A0 #5161C3 #7F8BD3

Accessibility & contrast

On white

8.25

#3746A0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#3746A0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3746A0

8.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3746A0	#FFFFFF	#000000	##FFFFFF
##3746A0	1.00	8.25	2.55	8.25
#FFFFFF	8.25	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053A3

Deuteranopia (green-blind)

#004A9E

Tritanopia (blue-blind)

#005C6C

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3746a0;
/* rgb */ color: rgb(55, 70, 160);
/* oklch */ color: oklch(43.5% 0.146 271.8);

Tailwind

colors: {
  custom: {
    50: '#7a79bd',
    500: '#3746a0',
    950: '#000000',
  },
}

SCSS

$custom: #3746a0;
$custom-light: #7a79bd;
$custom-dark: #000000;

JSON

{
  "hex": "#3746a0",
  "rgb": {
    "r": 55,
    "g": 70,
    "b": 160
  },
  "hsl": {
    "h": 231.429,
    "s": 48.837,
    "l": 42.157
  },
  "oklch": {
    "l": 0.43518,
    "c": 0.146,
    "h": 271.8
  },
  "luminance": 0.07731
}

Semantic roles & 50–950 ramp

primary

#3746A0

secondary

#BCB277

accent

#C54FD8

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #3746A0

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

Preview Lab → · Contrast checker → · Palette generator →