#1A238E#1A238E

#1A238E is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.8% C 0.172 H 269.5°. Best body text is #FFFFFF at 12.54:1 contrast (WCAG AA passes).

Color values

HEX	#1A238E
RGB	rgb(26, 35, 142)
HSL	hsl(235, 69%, 33%)
HSV	hsv(235, 82%, 56%)
CMYK	cmyk(81.7%, 75.4%, 0%, 44.3%)
CIE-LAB	lab(21.48, 36.49, -59.34)
CIE-LCH	lch(21.48, 69.66, 301.59°)
OKLab	oklab(33.84% -0.0014 -0.1719)
OKLCH	oklch(33.84% 0.172 269.5)
XYZ	xyz(5.9078, 3.3740, 25.9258)
Luminance	0.0338 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A238E #8E851A

analogous

#1A5D8E #1A238E #4B1A8E

triadic

#1A238E #8E1A23 #238E1A

tetradic

#1A238E #8E1A5D #8E851A #1A8E4B

square

#1A238E #8E1A5D #8E851A #1A8E4B

split-complementary

#1A238E #8E4B1A #5D8E1A

monochromatic

#070927 #11165A #1A238E #2330C2 #4551DD

Accessibility & contrast

On white

12.54

#1A238E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.68

#1A238E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A238E

12.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A238E	#FFFFFF	#000000	##FFFFFF
##1A238E	1.00	12.54	1.68	12.54
#FFFFFF	12.54	1.00	21.00	1.00
#000000	1.68	21.00	1.00	21.00
##FFFFFF	12.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003991

Deuteranopia (green-blind)

#002E8C

Tritanopia (blue-blind)

#004256

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1a238e;
/* rgb */ color: rgb(26, 35, 142);
/* oklch */ color: oklch(33.8% 0.172 269.5);

Tailwind

colors: {
  custom: {
    50: '#6d5fb0',
    500: '#1a238e',
    950: '#000000',
  },
}

SCSS

$custom: #1a238e;
$custom-light: #6d5fb0;
$custom-dark: #000000;

JSON

{
  "hex": "#1a238e",
  "rgb": {
    "r": 26,
    "g": 35,
    "b": 142
  },
  "hsl": {
    "h": 235.345,
    "s": 69.048,
    "l": 32.941
  },
  "oklch": {
    "l": 0.33835,
    "c": 0.1719,
    "h": 269.5
  },
  "luminance": 0.03375
}

Semantic roles & 50–950 ramp

primary

#1A238E

secondary

#BEB545

accent

#DE3CEC

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#080411

muted

#7B7980

Preview Lab

Preview with #1A238E

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

Preview Lab → · Contrast checker → · Palette generator →