#1A285F#1A285F

#1A285F is a dark, moderate blue. Relative luminance 0.026; OKLCH L 30.0% C 0.100 H 268.9°. Best body text is #FFFFFF at 13.88:1 contrast (WCAG AA passes).

Color values

HEX	#1A285F
RGB	rgb(26, 40, 95)
HSL	hsl(228, 57%, 24%)
HSV	hsv(228, 73%, 37%)
CMYK	cmyk(72.6%, 57.9%, 0%, 62.7%)
CIE-LAB	lab(18.20, 14.86, -34.59)
CIE-LCH	lch(18.20, 37.65, 293.25°)
OKLab	oklab(30.04% -0.0019 -0.0995)
OKLCH	oklch(30.04% 0.1 268.9)
XYZ	xyz(3.2496, 2.5631, 11.1477)
Luminance	0.0256 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A285F #5F511A

analogous

#1A4A5F #1A285F #2E1A5F

triadic

#1A285F #5F1A28 #285F1A

tetradic

#1A285F #5F1A4A #5F511A #1A5F2E

square

#1A285F #5F1A4A #5F511A #1A5F2E

split-complementary

#1A285F #5F2E1A #4A5F1A

monochromatic

#070A18 #0D142F #1A285F #273C8F #3450BF

Accessibility & contrast

On white

13.88

#1A285F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#1A285F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A285F

13.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A285F	#FFFFFF	#000000	##FFFFFF
##1A285F	1.00	13.88	1.51	13.88
#FFFFFF	13.88	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#023061

Deuteranopia (green-blind)

#00295E

Tritanopia (blue-blind)

#00353F

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1a285f;
/* rgb */ color: rgb(26, 40, 95);
/* oklch */ color: oklch(30.0% 0.100 268.9);

Tailwind

colors: {
  custom: {
    50: '#60618d',
    500: '#1a285f',
    950: '#000000',
  },
}

SCSS

$custom: #1a285f;
$custom-light: #60618d;
$custom-dark: #000000;

JSON

{
  "hex": "#1a285f",
  "rgb": {
    "r": 26,
    "g": 40,
    "b": 95
  },
  "hsl": {
    "h": 227.826,
    "s": 57.025,
    "l": 23.725
  },
  "oklch": {
    "l": 0.3004,
    "c": 0.0995,
    "h": 268.9
  },
  "luminance": 0.02563
}

Semantic roles & 50–950 ramp

primary

#1A285F

secondary

#958440

accent

#C148E0

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05050C

muted

#7A797D

Preview Lab

Preview with #1A285F

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

Preview Lab → · Contrast checker → · Palette generator →