#1B2148#1B2148

#1B2148 is a dark, moderate blue. Relative luminance 0.018; OKLCH L 26.6% C 0.072 H 273.9°. Best body text is #FFFFFF at 15.47:1 contrast (WCAG AA passes).

Color values

HEX	#1B2148
RGB	rgb(27, 33, 72)
HSL	hsl(232, 45%, 19%)
HSV	hsv(232, 63%, 28%)
CMYK	cmyk(62.5%, 54.2%, 0%, 71.8%)
CIE-LAB	lab(14.34, 10.98, -25.30)
CIE-LCH	lch(14.34, 27.58, 293.47°)
OKLab	oklab(26.57% 0.0049 -0.0722)
OKLCH	oklch(26.57% 0.072 273.9)
XYZ	xyz(2.1652, 1.7884, 6.3607)
Luminance	0.0179 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2148 #48421B

analogous

#1B3848 #1B2148 #2C1B48

triadic

#1B2148 #481B21 #21481B

tetradic

#1B2148 #481B38 #48421B #1B482C

square

#1B2148 #481B38 #48421B #1B482C

split-complementary

#1B2148 #482C1B #38481B

monochromatic

#080A16 #0A0D1B #1B2148 #2C3575 #3C4AA1

Accessibility & contrast

On white

15.47

#1B2148 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#1B2148 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2148

15.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2148	#FFFFFF	#000000	##FFFFFF
##1B2148	1.00	15.47	1.36	15.47
#FFFFFF	15.47	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E2649

Deuteranopia (green-blind)

#082247

Tritanopia (blue-blind)

#032A31

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #1b2148;
/* rgb */ color: rgb(27, 33, 72);
/* oklch */ color: oklch(26.6% 0.072 273.9);

Tailwind

colors: {
  custom: {
    50: '#5c5c7b',
    500: '#1b2148',
    950: '#000000',
  },
}

SCSS

$custom: #1b2148;
$custom-light: #5c5c7b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2148",
  "rgb": {
    "r": 27,
    "g": 33,
    "b": 72
  },
  "hsl": {
    "h": 232,
    "s": 45.455,
    "l": 19.412
  },
  "oklch": {
    "l": 0.26568,
    "c": 0.07237,
    "h": 273.9
  },
  "luminance": 0.01789
}

Semantic roles & 50–950 ramp

primary

#1B2148

secondary

#7E7641

accent

#C453D5

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#040409

muted

#79797B

Preview Lab

Preview with #1B2148

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

Preview Lab → · Contrast checker → · Palette generator →