#1B2C9E#1B2C9E

#1B2C9E is a dark, vivid blue. Relative luminance 0.045; OKLCH L 37.1% C 0.182 H 268.1°. Best body text is #FFFFFF at 11.05:1 contrast (WCAG AA passes).

Color values

HEX	#1B2C9E
RGB	rgb(27, 44, 158)
HSL	hsl(232, 71%, 36%)
HSV	hsv(232, 83%, 62%)
CMYK	cmyk(82.9%, 72.2%, 0%, 38%)
CIE-LAB	lab(25.27, 36.80, -62.94)
CIE-LCH	lch(25.27, 72.91, 300.31°)
OKLab	oklab(37.07% -0.006 -0.1824)
OKLCH	oklch(37.07% 0.182 268.1)
XYZ	xyz(7.5221, 4.5021, 32.8137)
Luminance	0.0450 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2C9E #9E8D1B

analogous

#1B6E9E #1B2C9E #4C1B9E

triadic

#1B2C9E #9E1B2C #2C9E1B

tetradic

#1B2C9E #9E1B6E #9E8D1B #1B9E4C

square

#1B2C9E #9E1B6E #9E8D1B #1B9E4C

split-complementary

#1B2C9E #9E4C1B #6E9E1B

monochromatic

#090F35 #121D6A #1B2C9E #243BD2 #5265E1

Accessibility & contrast

On white

11.05

#1B2C9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#1B2C9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2C9E

11.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2C9E	#FFFFFF	#000000	##FFFFFF
##1B2C9E	1.00	11.05	1.90	11.05
#FFFFFF	11.05	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0042A1

Deuteranopia (green-blind)

#00359C

Tritanopia (blue-blind)

#004C62

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #1b2c9e;
/* rgb */ color: rgb(27, 44, 158);
/* oklch */ color: oklch(37.1% 0.182 268.1);

Tailwind

colors: {
  custom: {
    50: '#7166bc',
    500: '#1b2c9e',
    950: '#000000',
  },
}

SCSS

$custom: #1b2c9e;
$custom-light: #7166bc;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2c9e",
  "rgb": {
    "r": 27,
    "g": 44,
    "b": 158
  },
  "hsl": {
    "h": 232.214,
    "s": 70.811,
    "l": 36.275
  },
  "oklch": {
    "l": 0.37074,
    "c": 0.18249,
    "h": 268.1
  },
  "luminance": 0.04503
}

Semantic roles & 50–950 ramp

primary

#1B2C9E

secondary

#C4B551

accent

#D63AEE

background

#F7F6FB

surface

#EEEBF7

border

#C9C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #1B2C9E

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

Preview Lab → · Contrast checker → · Palette generator →