#1A1B4E#1A1B4E

#1A1B4E is a dark, moderate blue. Relative luminance 0.016; OKLCH L 25.7% C 0.092 H 276.9°. Best body text is #FFFFFF at 16.02:1 contrast (WCAG AA passes).

Color values

HEX	#1A1B4E
RGB	rgb(26, 27, 78)
HSL	hsl(239, 50%, 20%)
HSV	hsv(239, 67%, 31%)
CMYK	cmyk(66.7%, 65.4%, 0%, 69.4%)
CIE-LAB	lab(12.94, 17.58, -31.68)
CIE-LCH	lch(12.94, 36.23, 299.02°)
OKLab	oklab(25.66% 0.0111 -0.0911)
OKLCH	oklch(25.66% 0.092 276.9)
XYZ	xyz(2.1926, 1.5534, 7.3905)
Luminance	0.0155 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A1B4E #4E4D1A

analogous

#1A354E #1A1B4E #331A4E

triadic

#1A1B4E #4E1A1B #1B4E1A

tetradic

#1A1B4E #4E1A35 #4E4D1A #1A4E33

square

#1A1B4E #4E1A35 #4E4D1A #1A4E33

split-complementary

#1A1B4E #4E331A #354E1A

monochromatic

#080817 #0B0B20 #1A1B4E #292B7C #393BAA

Accessibility & contrast

On white

16.02

#1A1B4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#1A1B4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A1B4E

16.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A1B4E	#FFFFFF	#000000	##FFFFFF
##1A1B4E	1.00	16.02	1.31	16.02
#FFFFFF	16.02	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002450

Deuteranopia (green-blind)

#001F4D

Tritanopia (blue-blind)

#002731

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #1a1b4e;
/* rgb */ color: rgb(26, 27, 78);
/* oklch */ color: oklch(25.7% 0.092 276.9);

Tailwind

colors: {
  custom: {
    50: '#5d5780',
    500: '#1a1b4e',
    950: '#000000',
  },
}

SCSS

$custom: #1a1b4e;
$custom-light: #5d5780;
$custom-dark: #000000;

JSON

{
  "hex": "#1a1b4e",
  "rgb": {
    "r": 26,
    "g": 27,
    "b": 78
  },
  "hsl": {
    "h": 238.846,
    "s": 50,
    "l": 20.392
  },
  "oklch": {
    "l": 0.25661,
    "c": 0.09175,
    "h": 276.9
  },
  "luminance": 0.01554
}

Semantic roles & 50–950 ramp

primary

#1A1B4E

secondary

#848340

accent

#D74EDA

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#05030A

muted

#79787C

Preview Lab

Preview with #1A1B4E

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

Preview Lab → · Contrast checker → · Palette generator →