#1B2C72#1B2C72

#1B2C72 is a dark, vivid blue. Relative luminance 0.032; OKLCH L 32.7% C 0.122 H 268.3°. Best body text is #FFFFFF at 12.73:1 contrast (WCAG AA passes).

Color values

HEX	#1B2C72
RGB	rgb(27, 44, 114)
HSL	hsl(228, 62%, 28%)
HSV	hsv(228, 76%, 45%)
CMYK	cmyk(76.3%, 61.4%, 0%, 55.3%)
CIE-LAB	lab(21.01, 19.84, -42.40)
CIE-LCH	lch(21.01, 46.82, 295.07°)
OKLab	oklab(32.66% -0.0036 -0.1223)
OKLCH	oklch(32.66% 0.122 268.3)
XYZ	xyz(4.3889, 3.2488, 16.3121)
Luminance	0.0325 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2C72 #72611B

analogous

#1B5772 #1B2C72 #361B72

triadic

#1B2C72 #721B2C #2C721B

tetradic

#1B2C72 #721B57 #72611B #1B7236

square

#1B2C72 #721B57 #72611B #1B7236

split-complementary

#1B2C72 #72361B #57721B

monochromatic

#060A19 #0F1941 #1B2C72 #273FA3 #3855D0

Accessibility & contrast

On white

12.73

#1B2C72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#1B2C72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2C72

12.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2C72	#FFFFFF	#000000	##FFFFFF
##1B2C72	1.00	12.73	1.65	12.73
#FFFFFF	12.73	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003774

Deuteranopia (green-blind)

#002F71

Tritanopia (blue-blind)

#003E4A

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1b2c72;
/* rgb */ color: rgb(27, 44, 114);
/* oklch */ color: oklch(32.7% 0.122 268.3);

Tailwind

colors: {
  custom: {
    50: '#65649b',
    500: '#1b2c72',
    950: '#000000',
  },
}

SCSS

$custom: #1b2c72;
$custom-light: #65649b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2c72",
  "rgb": {
    "r": 27,
    "g": 44,
    "b": 114
  },
  "hsl": {
    "h": 228.276,
    "s": 61.702,
    "l": 27.647
  },
  "oklch": {
    "l": 0.32664,
    "c": 0.1224,
    "h": 268.3
  },
  "luminance": 0.03249
}

Semantic roles & 50–950 ramp

primary

#1B2C72

secondary

#A79342

accent

#C543E5

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06050E

muted

#7A7A7E

Preview Lab

Preview with #1B2C72

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

Preview Lab → · Contrast checker → · Palette generator →