#1A156C#1A156C

#1A156C is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.8% C 0.142 H 274.5°. Best body text is #FFFFFF at 15.35:1 contrast (WCAG AA passes).

Color values

HEX	#1A156C
RGB	rgb(26, 21, 108)
HSL	hsl(243, 67%, 25%)
HSV	hsv(243, 81%, 42%)
CMYK	cmyk(75.9%, 80.6%, 0%, 57.6%)
CIE-LAB	lab(14.61, 32.79, -49.02)
CIE-LCH	lch(14.61, 58.97, 303.78°)
OKLab	oklab(27.81% 0.0111 -0.1418)
OKLCH	oklch(27.81% 0.142 274.5)
XYZ	xyz(3.4000, 1.8383, 14.3601)
Luminance	0.0184 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A156C #676C15

analogous

#153C6C #1A156C #45156C

triadic

#1A156C #6C1A15 #156C1A

tetradic

#1A156C #6C153C #676C15 #156C45

square

#1A156C #6C153C #676C15 #156C45

split-complementary

#1A156C #6C4515 #3C6C15

monochromatic

#06051A #0E0B39 #1A156C #261F9F #3329D2

Accessibility & contrast

On white

15.35

#1A156C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#1A156C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A156C

15.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A156C	#FFFFFF	#000000	##FFFFFF
##1A156C	1.00	15.35	1.37	15.35
#FFFFFF	15.35	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00296E

Deuteranopia (green-blind)

#00216A

Tritanopia (blue-blind)

#002F40

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #1a156c;
/* rgb */ color: rgb(26, 21, 108);
/* oklch */ color: oklch(27.8% 0.142 274.5);

Tailwind

colors: {
  custom: {
    50: '#665497',
    500: '#1a156c',
    950: '#000000',
  },
}

SCSS

$custom: #1a156c;
$custom-light: #665497;
$custom-dark: #000000;

JSON

{
  "hex": "#1a156c",
  "rgb": {
    "r": 26,
    "g": 21,
    "b": 108
  },
  "hsl": {
    "h": 243.448,
    "s": 67.442,
    "l": 25.294
  },
  "oklch": {
    "l": 0.27814,
    "c": 0.14222,
    "h": 274.5
  },
  "luminance": 0.01839
}

Semantic roles & 50–950 ramp

primary

#1A156C

secondary

#9DA33A

accent

#EA3DE0

background

#F6F4F9

surface

#EBE8F2

border

#C6C4CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1A156C

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

Preview Lab → · Contrast checker → · Palette generator →