#1A156B#1A156B

#1A156B is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.7% C 0.141 H 274.6°. Best body text is #FFFFFF at 15.40:1 contrast (WCAG AA passes).

Color values

HEX	#1A156B
RGB	rgb(26, 21, 107)
HSL	hsl(243, 67%, 25%)
HSV	hsv(243, 80%, 42%)
CMYK	cmyk(75.7%, 80.4%, 0%, 58%)
CIE-LAB	lab(14.50, 32.43, -48.56)
CIE-LCH	lch(14.50, 58.40, 303.74°)
OKLab	oklab(27.7% 0.0114 -0.1404)
OKLCH	oklch(27.7% 0.141 274.6)
XYZ	xyz(3.3471, 1.8172, 14.0814)
Luminance	0.0182 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A156B #666B15

analogous

#153B6B #1A156B #45156B

triadic

#1A156B #6B1A15 #156B1A

tetradic

#1A156B #6B153B #666B15 #156B45

square

#1A156B #6B153B #666B15 #156B45

split-complementary

#1A156B #6B4515 #3B6B15

monochromatic

#06051A #0E0B38 #1A156B #261F9E #3329D1

Accessibility & contrast

On white

15.40

#1A156B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#1A156B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A156B

15.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A156B	#FFFFFF	#000000	##FFFFFF
##1A156B	1.00	15.40	1.36	15.40
#FFFFFF	15.40	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00286D

Deuteranopia (green-blind)

#002169

Tritanopia (blue-blind)

#002F3F

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #1a156b;
/* rgb */ color: rgb(26, 21, 107);
/* oklch */ color: oklch(27.7% 0.141 274.6);

Tailwind

colors: {
  custom: {
    50: '#655496',
    500: '#1a156b',
    950: '#000000',
  },
}

SCSS

$custom: #1a156b;
$custom-light: #655496;
$custom-dark: #000000;

JSON

{
  "hex": "#1a156b",
  "rgb": {
    "r": 26,
    "g": 21,
    "b": 107
  },
  "hsl": {
    "h": 243.488,
    "s": 67.188,
    "l": 25.098
  },
  "oklch": {
    "l": 0.27696,
    "c": 0.1409,
    "h": 274.6
  },
  "luminance": 0.01817
}

Semantic roles & 50–950 ramp

primary

#1A156B

secondary

#9CA23A

accent

#EA3EE0

background

#F6F4F9

surface

#EBE7F2

border

#C6C3CC

text

#07030D

muted

#7A787E

Preview Lab

Preview with #1A156B

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

Preview Lab → · Contrast checker → · Palette generator →