#1B419F#1B419F

#1B419F is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.1% C 0.159 H 264.0°. Best body text is #FFFFFF at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#1B419F
RGB	rgb(27, 65, 159)
HSL	hsl(223, 71%, 36%)
HSV	hsv(223, 83%, 62%)
CMYK	cmyk(83%, 59.1%, 0%, 37.6%)
CIE-LAB	lab(30.68, 23.25, -54.67)
CIE-LCH	lch(30.68, 59.41, 293.04°)
OKLab	oklab(41.09% -0.0167 -0.158)
OKLCH	oklch(41.09% 0.159 264)
XYZ	xyz(8.5981, 6.5158, 33.5987)
Luminance	0.0652 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B419F #9F791B

analogous

#1B839F #1B419F #371B9F

triadic

#1B419F #9F1B41 #419F1B

tetradic

#1B419F #9F1B83 #9F791B #1B9F37

square

#1B419F #9F1B83 #9F791B #1B9F37

split-complementary

#1B419F #9F371B #839F1B

monochromatic

#091636 #122C6B #1B419F #2456D3 #537CE2

Accessibility & contrast

On white

9.12

#1B419F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#1B419F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B419F

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B419F	#FFFFFF	#000000	##FFFFFF
##1B419F	1.00	9.12	2.30	9.12
#FFFFFF	9.12	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA2

Deuteranopia (green-blind)

#00429D

Tritanopia (blue-blind)

#005969

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #1b419f;
/* rgb */ color: rgb(27, 65, 159);
/* oklch */ color: oklch(41.1% 0.159 264.0);

Tailwind

colors: {
  custom: {
    50: '#6f75bc',
    500: '#1b419f',
    950: '#000000',
  },
}

SCSS

$custom: #1b419f;
$custom-light: #6f75bc;
$custom-dark: #000000;

JSON

{
  "hex": "#1b419f",
  "rgb": {
    "r": 27,
    "g": 65,
    "b": 159
  },
  "hsl": {
    "h": 222.727,
    "s": 70.968,
    "l": 36.471
  },
  "oklch": {
    "l": 0.41087,
    "c": 0.15892,
    "h": 264
  },
  "luminance": 0.06517
}

Semantic roles & 50–950 ramp

primary

#1B419F

secondary

#C5A351

accent

#BA3AEE

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1B419F

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

Preview Lab → · Contrast checker → · Palette generator →