#1B2147#1B2147

#1B2147 is a dark, moderate blue. Relative luminance 0.018; OKLCH L 26.5% C 0.071 H 273.8°. Best body text is #FFFFFF at 15.50:1 contrast (WCAG AA passes).

Color values

HEX	#1B2147
RGB	rgb(27, 33, 71)
HSL	hsl(232, 45%, 19%)
HSV	hsv(232, 62%, 28%)
CMYK	cmyk(62%, 53.5%, 0%, 72.2%)
CIE-LAB	lab(14.26, 10.59, -24.73)
CIE-LCH	lch(14.26, 26.90, 293.18°)
OKLab	oklab(26.49% 0.0047 -0.0705)
OKLCH	oklch(26.49% 0.071 273.8)
XYZ	xyz(2.1328, 1.7755, 6.1903)
Luminance	0.0178 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2147 #47411B

analogous

#1B3747 #1B2147 #2B1B47

triadic

#1B2147 #471B21 #21471B

tetradic

#1B2147 #471B37 #47411B #1B472B

square

#1B2147 #471B37 #47411B #1B472B

split-complementary

#1B2147 #472B1B #37471B

monochromatic

#080A16 #0A0C1B #1B2147 #2C3673 #3D4AA0

Accessibility & contrast

On white

15.50

#1B2147 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#1B2147 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2147

15.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2147	#FFFFFF	#000000	##FFFFFF
##1B2147	1.00	15.50	1.36	15.50
#FFFFFF	15.50	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0F2648

Deuteranopia (green-blind)

#092246

Tritanopia (blue-blind)

#042930

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #1b2147;
/* rgb */ color: rgb(27, 33, 71);
/* oklch */ color: oklch(26.5% 0.071 273.8);

Tailwind

colors: {
  custom: {
    50: '#5c5c7a',
    500: '#1b2147',
    950: '#000000',
  },
}

SCSS

$custom: #1b2147;
$custom-light: #5c5c7a;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2147",
  "rgb": {
    "r": 27,
    "g": 33,
    "b": 71
  },
  "hsl": {
    "h": 231.818,
    "s": 44.898,
    "l": 19.216
  },
  "oklch": {
    "l": 0.26489,
    "c": 0.07069,
    "h": 273.8
  },
  "luminance": 0.01776
}

Semantic roles & 50–950 ramp

primary

#1B2147

secondary

#7D7541

accent

#C353D5

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#040409

muted

#79797B

Preview Lab

Preview with #1B2147

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

Preview Lab → · Contrast checker → · Palette generator →