#1A2F78#1A2F78

#1A2F78 is a dark, vivid blue. Relative luminance 0.036; OKLCH L 33.8% C 0.127 H 267.0°. Best body text is #FFFFFF at 12.20:1 contrast (WCAG AA passes).

Color values

HEX	#1A2F78
RGB	rgb(26, 47, 120)
HSL	hsl(227, 64%, 29%)
HSV	hsv(227, 78%, 47%)
CMYK	cmyk(78.3%, 60.8%, 0%, 52.9%)
CIE-LAB	lab(22.33, 20.00, -44.10)
CIE-LCH	lch(22.33, 48.42, 294.39°)
OKLab	oklab(33.8% -0.0067 -0.1273)
OKLCH	oklch(33.8% 0.127 267)
XYZ	xyz(4.8315, 3.6082, 18.2075)
Luminance	0.0361 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A2F78 #78631A

analogous

#1A5E78 #1A2F78 #341A78

triadic

#1A2F78 #781A2F #2F781A

tetradic

#1A2F78 #781A5E #78631A #1A7834

square

#1A2F78 #781A5E #78631A #1A7834

split-complementary

#1A2F78 #78341A #5E781A

monochromatic

#050A19 #0F1B46 #1A2F78 #2543AA #385BD4

Accessibility & contrast

On white

12.20

#1A2F78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#1A2F78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A2F78

12.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A2F78	#FFFFFF	#000000	##FFFFFF
##1A2F78	1.00	12.20	1.72	12.20
#FFFFFF	12.20	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003A7A

Deuteranopia (green-blind)

#003177

Tritanopia (blue-blind)

#00414E

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1a2f78;
/* rgb */ color: rgb(26, 47, 120);
/* oklch */ color: oklch(33.8% 0.127 267.0);

Tailwind

colors: {
  custom: {
    50: '#6667a0',
    500: '#1a2f78',
    950: '#000000',
  },
}

SCSS

$custom: #1a2f78;
$custom-light: #6667a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1a2f78",
  "rgb": {
    "r": 26,
    "g": 47,
    "b": 120
  },
  "hsl": {
    "h": 226.596,
    "s": 64.384,
    "l": 28.627
  },
  "oklch": {
    "l": 0.33796,
    "c": 0.12748,
    "h": 267
  },
  "luminance": 0.03609
}

Semantic roles & 50–950 ramp

primary

#1A2F78

secondary

#AC9541

accent

#C240E7

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07060F

muted

#7A7A7E

Preview Lab

Preview with #1A2F78

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

Preview Lab → · Contrast checker → · Palette generator →