#1B4EC3#1B4EC3

#1B4EC3 is a mid, vivid blue. Relative luminance 0.096; OKLCH L 46.9% C 0.191 H 263.2°. Best body text is #FFFFFF at 7.18:1 contrast (WCAG AA passes).

Color values

HEX	#1B4EC3
RGB	rgb(27, 78, 195)
HSL	hsl(222, 76%, 44%)
HSV	hsv(222, 86%, 76%)
CMYK	cmyk(86.2%, 60%, 0%, 23.5%)
CIE-LAB	lab(37.15, 28.66, -65.48)
CIE-LCH	lch(37.15, 71.48, 293.64°)
OKLab	oklab(46.87% -0.0226 -0.1895)
OKLCH	oklch(46.87% 0.191 263.2)
XYZ	xyz(13.0232, 9.6203, 52.7897)
Luminance	0.0962 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B4EC3 #C3901B

analogous

#1BA2C3 #1B4EC3 #3C1BC3

triadic

#1B4EC3 #C31B4E #4EC31B

tetradic

#1B4EC3 #C31BA2 #C3901B #1BC33C

square

#1B4EC3 #C31BA2 #C3901B #1BC33C

split-complementary

#1B4EC3 #C33C1B #A2C31B

monochromatic

#0C2357 #14388D #1B4EC3 #386CE3 #6E94EB

Accessibility & contrast

On white

7.18

#1B4EC3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#1B4EC3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B4EC3

7.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B4EC3	#FFFFFF	#000000	##FFFFFF
##1B4EC3	1.00	7.18	2.92	7.18
#FFFFFF	7.18	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FC7

Deuteranopia (green-blind)

#0050C1

Tritanopia (blue-blind)

#006C81

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #1b4ec3;
/* rgb */ color: rgb(27, 78, 195);
/* oklch */ color: oklch(46.9% 0.191 263.2);

Tailwind

colors: {
  custom: {
    50: '#787fd6',
    500: '#1b4ec3',
    950: '#000000',
  },
}

SCSS

$custom: #1b4ec3;
$custom-light: #787fd6;
$custom-dark: #000000;

JSON

{
  "hex": "#1b4ec3",
  "rgb": {
    "r": 27,
    "g": 78,
    "b": 195
  },
  "hsl": {
    "h": 221.786,
    "s": 75.676,
    "l": 43.529
  },
  "oklch": {
    "l": 0.46867,
    "c": 0.19087,
    "h": 263.2
  },
  "luminance": 0.09622
}

Semantic roles & 50–950 ramp

primary

#1B4EC3

secondary

#D1B169

accent

#B936F2

background

#F8F7FD

surface

#EFEEFA

border

#CAC9D3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #1B4EC3

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

Preview Lab → · Contrast checker → · Palette generator →