#1B2A72#1B2A72

#1B2A72 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.2% C 0.125 H 269.1°. Best body text is #FFFFFF at 12.96:1 contrast (WCAG AA passes).

Color values

HEX	#1B2A72
RGB	rgb(27, 42, 114)
HSL	hsl(230, 62%, 28%)
HSV	hsv(230, 76%, 45%)
CMYK	cmyk(76.3%, 63.2%, 0%, 55.3%)
CIE-LAB	lab(20.45, 21.26, -43.32)
CIE-LCH	lch(20.45, 48.25, 296.14°)
OKLab	oklab(32.25% -0.002 -0.1251)
OKLCH	oklch(32.25% 0.125 269.1)
XYZ	xyz(4.3162, 3.1034, 16.2879)
Luminance	0.0310 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2A72 #72631B

analogous

#1B5672 #1B2A72 #371B72

triadic

#1B2A72 #721B2A #2A721B

tetradic

#1B2A72 #721B56 #72631B #1B7237

square

#1B2A72 #721B56 #72631B #1B7237

split-complementary

#1B2A72 #72371B #56721B

monochromatic

#060919 #0F1841 #1B2A72 #273CA3 #3852D0

Accessibility & contrast

On white

12.96

#1B2A72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#1B2A72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2A72

12.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2A72	#FFFFFF	#000000	##FFFFFF
##1B2A72	1.00	12.96	1.62	12.96
#FFFFFF	12.96	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003574

Deuteranopia (green-blind)

#002D71

Tritanopia (blue-blind)

#003C49

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1b2a72;
/* rgb */ color: rgb(27, 42, 114);
/* oklch */ color: oklch(32.2% 0.125 269.1);

Tailwind

colors: {
  custom: {
    50: '#65639b',
    500: '#1b2a72',
    950: '#000000',
  },
}

SCSS

$custom: #1b2a72;
$custom-light: #65639b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2a72",
  "rgb": {
    "r": 27,
    "g": 42,
    "b": 114
  },
  "hsl": {
    "h": 229.655,
    "s": 61.702,
    "l": 27.647
  },
  "oklch": {
    "l": 0.32247,
    "c": 0.12508,
    "h": 269.1
  },
  "luminance": 0.03104
}

Semantic roles & 50–950 ramp

primary

#1B2A72

secondary

#A79542

accent

#C943E5

background

#F6F5F9

surface

#EBEAF2

border

#C6C6CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #1B2A72

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

Preview Lab → · Contrast checker → · Palette generator →