#1B245C#1B245C

#1B245C is a dark, moderate blue. Relative luminance 0.023; OKLCH L 29.0% C 0.100 H 271.7°. Best body text is #FFFFFF at 14.45:1 contrast (WCAG AA passes).

Color values

HEX	#1B245C
RGB	rgb(27, 36, 92)
HSL	hsl(232, 55%, 23%)
HSV	hsv(232, 71%, 36%)
CMYK	cmyk(70.7%, 60.9%, 0%, 63.9%)
CIE-LAB	lab(16.83, 16.75, -34.82)
CIE-LCH	lch(16.83, 38.64, 295.68°)
OKLab	oklab(28.95% 0.003 -0.1002)
OKLCH	oklch(28.95% 0.1 271.7)
XYZ	xyz(3.0140, 2.2672, 10.4019)
Luminance	0.0227 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B245C #5C531B

analogous

#1B445C #1B245C #321B5C

triadic

#1B245C #5C1B24 #245C1B

tetradic

#1B245C #5C1B44 #5C531B #1B5C32

square

#1B245C #5C1B44 #5C531B #1B5C32

split-complementary

#1B245C #5C321B #445C1B

monochromatic

#070918 #0D112D #1B245C #29378B #3749BB

Accessibility & contrast

On white

14.45

#1B245C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#1B245C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B245C

14.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B245C	#FFFFFF	#000000	##FFFFFF
##1B245C	1.00	14.45	1.45	14.45
#FFFFFF	14.45	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D5E

Deuteranopia (green-blind)

#00275B

Tritanopia (blue-blind)

#00323C

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #1b245c;
/* rgb */ color: rgb(27, 36, 92);
/* oklch */ color: oklch(29.0% 0.100 271.7);

Tailwind

colors: {
  custom: {
    50: '#605e8b',
    500: '#1b245c',
    950: '#000000',
  },
}

SCSS

$custom: #1b245c;
$custom-light: #605e8b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b245c",
  "rgb": {
    "r": 27,
    "g": 36,
    "b": 92
  },
  "hsl": {
    "h": 231.692,
    "s": 54.622,
    "l": 23.333
  },
  "oklch": {
    "l": 0.28951,
    "c": 0.10023,
    "h": 271.7
  },
  "luminance": 0.02267
}

Semantic roles & 50–950 ramp

primary

#1B245C

secondary

#928741

accent

#C94ADE

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05040C

muted

#79797D

Preview Lab

Preview with #1B245C

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

Preview Lab → · Contrast checker → · Palette generator →