#1A285E#1A285E

#1A285E is a dark, moderate blue. Relative luminance 0.025; OKLCH L 30.0% C 0.098 H 268.8°. Best body text is #FFFFFF at 13.92:1 contrast (WCAG AA passes).

Color values

HEX	#1A285E
RGB	rgb(26, 40, 94)
HSL	hsl(228, 57%, 24%)
HSV	hsv(228, 72%, 37%)
CMYK	cmyk(72.3%, 57.4%, 0%, 63.1%)
CIE-LAB	lab(18.12, 14.45, -34.06)
CIE-LCH	lch(18.12, 37.00, 292.99°)
OKLab	oklab(29.95% -0.002 -0.0979)
OKLCH	oklch(29.95% 0.098 268.8)
XYZ	xyz(3.2045, 2.5450, 10.9099)
Luminance	0.0255 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A285E #5E501A

analogous

#1A4A5E #1A285E #2E1A5E

triadic

#1A285E #5E1A28 #285E1A

tetradic

#1A285E #5E1A4A #5E501A #1A5E2E

square

#1A285E #5E1A4A #5E501A #1A5E2E

split-complementary

#1A285E #5E2E1A #4A5E1A

monochromatic

#070A18 #0D142E #1A285E #273C8E #3551BE

Accessibility & contrast

On white

13.92

#1A285E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#1A285E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A285E

13.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A285E	#FFFFFF	#000000	##FFFFFF
##1A285E	1.00	13.92	1.51	13.92
#FFFFFF	13.92	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#032F60

Deuteranopia (green-blind)

#00295D

Tritanopia (blue-blind)

#00353E

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #1a285e;
/* rgb */ color: rgb(26, 40, 94);
/* oklch */ color: oklch(30.0% 0.098 268.8);

Tailwind

colors: {
  custom: {
    50: '#60618c',
    500: '#1a285e',
    950: '#000000',
  },
}

SCSS

$custom: #1a285e;
$custom-light: #60618c;
$custom-dark: #000000;

JSON

{
  "hex": "#1a285e",
  "rgb": {
    "r": 26,
    "g": 40,
    "b": 94
  },
  "hsl": {
    "h": 227.647,
    "s": 56.667,
    "l": 23.529
  },
  "oklch": {
    "l": 0.29954,
    "c": 0.09794,
    "h": 268.8
  },
  "luminance": 0.02545
}

Semantic roles & 50–950 ramp

primary

#1A285E

secondary

#948340

accent

#C148E0

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05050C

muted

#79797D

Preview Lab

Preview with #1A285E

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

Preview Lab → · Contrast checker → · Palette generator →