#1B2772#1B2772

#1B2772 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 31.6% C 0.129 H 270.1°. Best body text is #FFFFFF at 13.29:1 contrast (WCAG AA passes).

Color values

HEX	#1B2772
RGB	rgb(27, 39, 114)
HSL	hsl(232, 62%, 28%)
HSV	hsv(232, 76%, 45%)
CMYK	cmyk(76.3%, 65.8%, 0%, 55.3%)
CIE-LAB	lab(19.63, 23.37, -44.66)
CIE-LCH	lch(19.63, 50.41, 297.63°)
OKLab	oklab(31.64% 0.0003 -0.129)
OKLCH	oklch(31.64% 0.129 270.1)
XYZ	xyz(4.2137, 2.8985, 16.2537)
Luminance	0.0290 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2772 #72661B

analogous

#1B5272 #1B2772 #3A1B72

triadic

#1B2772 #721B27 #27721B

tetradic

#1B2772 #721B52 #72661B #1B723A

square

#1B2772 #721B52 #72661B #1B723A

split-complementary

#1B2772 #723A1B #52721B

monochromatic

#060819 #0F1641 #1B2772 #2738A3 #384DD0

Accessibility & contrast

On white

13.29

#1B2772 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#1B2772 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2772

13.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2772	#FFFFFF	#000000	##FFFFFF
##1B2772	1.00	13.29	1.58	13.29
#FFFFFF	13.29	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003474

Deuteranopia (green-blind)

#002C71

Tritanopia (blue-blind)

#003A48

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1b2772;
/* rgb */ color: rgb(27, 39, 114);
/* oklch */ color: oklch(31.6% 0.129 270.1);

Tailwind

colors: {
  custom: {
    50: '#66619b',
    500: '#1b2772',
    950: '#000000',
  },
}

SCSS

$custom: #1b2772;
$custom-light: #66619b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2772",
  "rgb": {
    "r": 27,
    "g": 39,
    "b": 114
  },
  "hsl": {
    "h": 231.724,
    "s": 61.702,
    "l": 27.647
  },
  "oklch": {
    "l": 0.3164,
    "c": 0.12903,
    "h": 270.1
  },
  "luminance": 0.02899
}

Semantic roles & 50–950 ramp

primary

#1B2772

secondary

#A79942

accent

#CE43E5

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #1B2772

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

Preview Lab → · Contrast checker → · Palette generator →