#1B246F#1B246F

#1B246F is a dark, vivid blue. Relative luminance 0.026; OKLCH L 30.8% C 0.129 H 271.2°. Best body text is #FFFFFF at 13.74:1 contrast (WCAG AA passes).

Color values

HEX	#1B246F
RGB	rgb(27, 36, 111)
HSL	hsl(234, 61%, 27%)
HSV	hsv(234, 76%, 44%)
CMYK	cmyk(75.7%, 67.6%, 0%, 56.5%)
CIE-LAB	lab(18.55, 24.29, -44.49)
CIE-LCH	lch(18.55, 50.69, 298.63°)
OKLab	oklab(30.76% 0.0027 -0.1286)
OKLCH	oklch(30.76% 0.129 271.2)
XYZ	xyz(3.9511, 2.6421, 15.3376)
Luminance	0.0264 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B246F #6F661B

analogous

#1B4E6F #1B246F #3C1B6F

triadic

#1B246F #6F1B24 #246F1B

tetradic

#1B246F #6F1B4E #6F661B #1B6F3C

square

#1B246F #6F1B4E #6F661B #1B6F3C

split-complementary

#1B246F #6F3C1B #4E6F1B

monochromatic

#060819 #0F143E #1B246F #2734A0 #3647CE

Accessibility & contrast

On white

13.74

#1B246F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.53

#1B246F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B246F

13.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B246F	#FFFFFF	#000000	##FFFFFF
##1B246F	1.00	13.74	1.53	13.74
#FFFFFF	13.74	1.00	21.00	1.00
#000000	1.53	21.00	1.00	21.00
##FFFFFF	13.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003171

Deuteranopia (green-blind)

#00296E

Tritanopia (blue-blind)

#003846

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #1b246f;
/* rgb */ color: rgb(27, 36, 111);
/* oklch */ color: oklch(30.8% 0.129 271.2);

Tailwind

colors: {
  custom: {
    50: '#655e99',
    500: '#1b246f',
    950: '#000000',
  },
}

SCSS

$custom: #1b246f;
$custom-light: #655e99;
$custom-dark: #000000;

JSON

{
  "hex": "#1b246f",
  "rgb": {
    "r": 27,
    "g": 36,
    "b": 111
  },
  "hsl": {
    "h": 233.571,
    "s": 60.87,
    "l": 27.059
  },
  "oklch": {
    "l": 0.30757,
    "c": 0.12861,
    "h": 271.2
  },
  "luminance": 0.02642
}

Semantic roles & 50–950 ramp

primary

#1B246F

secondary

#A49942

accent

#D344E4

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06040E

muted

#7A797E

Preview Lab

Preview with #1B246F

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

Preview Lab → · Contrast checker → · Palette generator →