#1B2C8C#1B2C8C

#1B2C8C is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.2% C 0.159 H 268.4°. Best body text is #FFFFFF at 11.76:1 contrast (WCAG AA passes).

Color values

HEX	#1B2C8C
RGB	rgb(27, 44, 140)
HSL	hsl(231, 68%, 33%)
HSV	hsv(231, 81%, 55%)
CMYK	cmyk(80.7%, 68.6%, 0%, 45.1%)
CIE-LAB	lab(23.43, 30.07, -54.88)
CIE-LCH	lch(23.43, 62.58, 298.71°)
OKLab	oklab(35.19% -0.0043 -0.1589)
OKLCH	oklch(35.19% 0.159 268.4)
XYZ	xyz(6.0847, 3.9271, 25.2432)
Luminance	0.0393 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2C8C #8C7B1B

analogous

#1B658C #1B2C8C #421B8C

triadic

#1B2C8C #8C1B2C #2C8C1B

tetradic

#1B2C8C #8C1B65 #8C7B1B #1B8C42

square

#1B2C8C #8C1B65 #8C7B1B #1B8C42

split-complementary

#1B2C8C #8C421B #658C1B

monochromatic

#070C25 #111C59 #1B2C8C #253CBF #465DDB

Accessibility & contrast

On white

11.76

#1B2C8C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#1B2C8C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2C8C

11.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2C8C	#FFFFFF	#000000	##FFFFFF
##1B2C8C	1.00	11.76	1.79	11.76
#FFFFFF	11.76	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D8F

Deuteranopia (green-blind)

#00328A

Tritanopia (blue-blind)

#004658

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1b2c8c;
/* rgb */ color: rgb(27, 44, 140);
/* oklch */ color: oklch(35.2% 0.159 268.4);

Tailwind

colors: {
  custom: {
    50: '#6c65af',
    500: '#1b2c8c',
    950: '#000000',
  },
}

SCSS

$custom: #1b2c8c;
$custom-light: #6c65af;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2c8c",
  "rgb": {
    "r": 27,
    "g": 44,
    "b": 140
  },
  "hsl": {
    "h": 230.973,
    "s": 67.665,
    "l": 32.745
  },
  "oklch": {
    "l": 0.35189,
    "c": 0.15897,
    "h": 268.4
  },
  "luminance": 0.03928
}

Semantic roles & 50–950 ramp

primary

#1B2C8C

secondary

#BDAB46

accent

#D03DEB

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080510

muted

#7B7A7F

Preview Lab

Preview with #1B2C8C

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

Preview Lab → · Contrast checker → · Palette generator →