#1B2C8D#1B2C8D

#1B2C8D is a dark, vivid blue. Relative luminance 0.040; OKLCH L 35.3% C 0.160 H 268.4°. Best body text is #FFFFFF at 11.72:1 contrast (WCAG AA passes).

Color values

HEX	#1B2C8D
RGB	rgb(27, 44, 141)
HSL	hsl(231, 68%, 33%)
HSV	hsv(231, 81%, 55%)
CMYK	cmyk(80.9%, 68.8%, 0%, 44.7%)
CIE-LAB	lab(23.53, 30.45, -55.34)
CIE-LCH	lch(23.53, 63.16, 298.82°)
OKLab	oklab(35.29% -0.0044 -0.1602)
OKLCH	oklch(35.29% 0.16 268.4)
XYZ	xyz(6.1587, 3.9568, 25.6333)
Luminance	0.0396 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2C8D #8D7C1B

analogous

#1B658D #1B2C8D #431B8D

triadic

#1B2C8D #8D1B2C #2C8D1B

tetradic

#1B2C8D #8D1B65 #8D7C1B #1B8D43

square

#1B2C8D #8D1B65 #8D7C1B #1B8D43

split-complementary

#1B2C8D #8D431B #658D1B

monochromatic

#070C26 #111C5A #1B2C8D #253CC0 #475DDC

Accessibility & contrast

On white

11.72

#1B2C8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#1B2C8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2C8D

11.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2C8D	#FFFFFF	#000000	##FFFFFF
##1B2C8D	1.00	11.72	1.79	11.72
#FFFFFF	11.72	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E90

Deuteranopia (green-blind)

#00338B

Tritanopia (blue-blind)

#004658

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1b2c8d;
/* rgb */ color: rgb(27, 44, 141);
/* oklch */ color: oklch(35.3% 0.160 268.4);

Tailwind

colors: {
  custom: {
    50: '#6c65af',
    500: '#1b2c8d',
    950: '#000000',
  },
}

SCSS

$custom: #1b2c8d;
$custom-light: #6c65af;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2c8d",
  "rgb": {
    "r": 27,
    "g": 44,
    "b": 141
  },
  "hsl": {
    "h": 231.053,
    "s": 67.857,
    "l": 32.941
  },
  "oklch": {
    "l": 0.35291,
    "c": 0.16031,
    "h": 268.4
  },
  "luminance": 0.03957
}

Semantic roles & 50–950 ramp

primary

#1B2C8D

secondary

#BDAC46

accent

#D13DEB

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080510

muted

#7B7A7F

Preview Lab

Preview with #1B2C8D

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

Preview Lab → · Contrast checker → · Palette generator →