#1A287D#1A287D

#1A287D is a dark, vivid blue. Relative luminance 0.032; OKLCH L 32.9% C 0.144 H 269.2°. Best body text is #FFFFFF at 12.78:1 contrast (WCAG AA passes).

Color values

HEX	#1A287D
RGB	rgb(26, 40, 125)
HSL	hsl(232, 66%, 30%)
HSV	hsv(232, 79%, 49%)
CMYK	cmyk(79.2%, 68%, 0%, 51%)
CIE-LAB	lab(20.89, 26.88, -49.63)
CIE-LCH	lch(20.89, 56.44, 298.44°)
OKLab	oklab(32.88% -0.002 -0.1436)
OKLCH	oklch(32.88% 0.144 269.2)
XYZ	xyz(4.8852, 3.2173, 19.7616)
Luminance	0.0322 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A287D #7D6F1A

analogous

#1A5A7D #1A287D #3E1A7D

triadic

#1A287D #7D1A28 #287D1A

tetradic

#1A287D #7D1A5A #7D6F1A #1A7D3E

square

#1A287D #7D1A5A #7D6F1A #1A7D3E

split-complementary

#1A287D #7D3E1A #5A7D1A

monochromatic

#050819 #0F184A #1A287D #2538B0 #3B51D6

Accessibility & contrast

On white

12.78

#1A287D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#1A287D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A287D

12.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A287D	#FFFFFF	#000000	##FFFFFF
##1A287D	1.00	12.78	1.64	12.78
#FFFFFF	12.78	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003780

Deuteranopia (green-blind)

#002E7B

Tritanopia (blue-blind)

#003F4E

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1a287d;
/* rgb */ color: rgb(26, 40, 125);
/* oklch */ color: oklch(32.9% 0.144 269.2);

Tailwind

colors: {
  custom: {
    50: '#6862a4',
    500: '#1a287d',
    950: '#000000',
  },
}

SCSS

$custom: #1a287d;
$custom-light: #6862a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1a287d",
  "rgb": {
    "r": 26,
    "g": 40,
    "b": 125
  },
  "hsl": {
    "h": 231.515,
    "s": 65.563,
    "l": 29.608
  },
  "oklch": {
    "l": 0.32875,
    "c": 0.1436,
    "h": 269.2
  },
  "luminance": 0.03218
}

Semantic roles & 50–950 ramp

primary

#1A287D

secondary

#B1A142

accent

#D13FE9

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #1A287D

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

Preview Lab → · Contrast checker → · Palette generator →