#1B429E#1B429E

#1B429E is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.2% C 0.156 H 263.6°. Best body text is #FFFFFF at 9.05:1 contrast (WCAG AA passes).

Color values

HEX	#1B429E
RGB	rgb(27, 66, 158)
HSL	hsl(222, 71%, 36%)
HSV	hsv(222, 83%, 62%)
CMYK	cmyk(82.9%, 58.2%, 0%, 38%)
CIE-LAB	lab(30.87, 22.17, -53.75)
CIE-LCH	lch(30.87, 58.14, 292.42°)
OKLab	oklab(41.21% -0.0174 -0.1553)
OKLCH	oklch(41.21% 0.156 263.6)
XYZ	xyz(8.5696, 6.5970, 33.1628)
Luminance	0.0660 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B429E #9E771B

analogous

#1B849E #1B429E #351B9E

triadic

#1B429E #9E1B42 #429E1B

tetradic

#1B429E #9E1B84 #9E771B #1B9E35

square

#1B429E #9E1B84 #9E771B #1B9E35

split-complementary

#1B429E #9E351B #849E1B

monochromatic

#091635 #122C6A #1B429E #2458D2 #527DE1

Accessibility & contrast

On white

9.05

#1B429E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#1B429E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B429E

9.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B429E	#FFFFFF	#000000	##FFFFFF
##1B429E	1.00	9.05	2.32	9.05
#FFFFFF	9.05	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA1

Deuteranopia (green-blind)

#00439C

Tritanopia (blue-blind)

#005969

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1b429e;
/* rgb */ color: rgb(27, 66, 158);
/* oklch */ color: oklch(41.2% 0.156 263.6);

Tailwind

colors: {
  custom: {
    50: '#6f75bb',
    500: '#1b429e',
    950: '#000000',
  },
}

SCSS

$custom: #1b429e;
$custom-light: #6f75bb;
$custom-dark: #000000;

JSON

{
  "hex": "#1b429e",
  "rgb": {
    "r": 27,
    "g": 66,
    "b": 158
  },
  "hsl": {
    "h": 222.137,
    "s": 70.811,
    "l": 36.275
  },
  "oklch": {
    "l": 0.41206,
    "c": 0.15629,
    "h": 263.6
  },
  "luminance": 0.06598
}

Semantic roles & 50–950 ramp

primary

#1B429E

secondary

#C4A251

accent

#B83AEE

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1B429E

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

Preview Lab → · Contrast checker → · Palette generator →