#1240A1#1240A1

#1240A1 is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.8% C 0.165 H 262.5°. Best body text is #FFFFFF at 9.24:1 contrast (WCAG AA passes).

Color values

HEX	#1240A1
RGB	rgb(18, 64, 161)
HSL	hsl(221, 80%, 35%)
HSV	hsv(221, 89%, 63%)
CMYK	cmyk(88.8%, 60.2%, 0%, 36.9%)
CIE-LAB	lab(30.32, 24.05, -56.47)
CIE-LCH	lch(30.32, 61.38, 293.07°)
OKLab	oklab(40.8% -0.0214 -0.1635)
OKLCH	oklch(40.8% 0.165 262.5)
XYZ	xyz(8.5136, 6.3675, 34.4916)
Luminance	0.0637 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1240A1 #A17312

analogous

#1288A1 #1240A1 #2B12A1

triadic

#1240A1 #A11240 #40A112

tetradic

#1240A1 #A11288 #A17312 #12A12B

square

#1240A1 #A11288 #A17312 #12A12B

split-complementary

#1240A1 #A12B12 #88A112

monochromatic

#061433 #0C2A6A #1240A1 #1856D8 #4379EA

Accessibility & contrast

On white

9.24

#1240A1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#1240A1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1240A1

9.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1240A1	#FFFFFF	#000000	##FFFFFF
##1240A1	1.00	9.24	2.27	9.24
#FFFFFF	9.24	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA4

Deuteranopia (green-blind)

#00419F

Tritanopia (blue-blind)

#00596A

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #1240a1;
/* rgb */ color: rgb(18, 64, 161);
/* oklch */ color: oklch(40.8% 0.165 262.5);

Tailwind

colors: {
  custom: {
    50: '#6e74be',
    500: '#1240a1',
    950: '#000000',
  },
}

SCSS

$custom: #1240a1;
$custom-light: #6e74be;
$custom-dark: #000000;

JSON

{
  "hex": "#1240a1",
  "rgb": {
    "r": 18,
    "g": 64,
    "b": 161
  },
  "hsl": {
    "h": 220.699,
    "s": 79.888,
    "l": 35.098
  },
  "oklch": {
    "l": 0.408,
    "c": 0.16485,
    "h": 262.5
  },
  "luminance": 0.06369
}

Semantic roles & 50–950 ramp

primary

#1240A1

secondary

#CA9F45

accent

#B731F6

background

#F7F7FB

surface

#EDEDF7

border

#C8C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #1240A1

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

Preview Lab → · Contrast checker → · Palette generator →