#1B245E#1B245E

#1B245E is a dark, moderate blue. Relative luminance 0.023; OKLCH L 29.1% C 0.103 H 271.7°. Best body text is #FFFFFF at 14.38:1 contrast (WCAG AA passes).

Color values

HEX	#1B245E
RGB	rgb(27, 36, 94)
HSL	hsl(232, 55%, 24%)
HSV	hsv(232, 71%, 37%)
CMYK	cmyk(71.3%, 61.7%, 0%, 63.1%)
CIE-LAB	lab(17.00, 17.55, -35.88)
CIE-LCH	lch(17.00, 39.94, 296.07°)
OKLab	oklab(29.13% 0.0031 -0.1033)
OKLCH	oklch(29.13% 0.103 271.7)
XYZ	xyz(3.1026, 2.3026, 10.8685)
Luminance	0.0230 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B245E #5E551B

analogous

#1B455E #1B245E #331B5E

triadic

#1B245E #5E1B24 #245E1B

tetradic

#1B245E #5E1B45 #5E551B #1B5E33

square

#1B245E #5E1B45 #5E551B #1B5E33

split-complementary

#1B245E #5E331B #455E1B

monochromatic

#070918 #0D122E #1B245E #29368E #3648BD

Accessibility & contrast

On white

14.38

#1B245E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#1B245E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B245E

14.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B245E	#FFFFFF	#000000	##FFFFFF
##1B245E	1.00	14.38	1.46	14.38
#FFFFFF	14.38	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D60

Deuteranopia (green-blind)

#00275D

Tritanopia (blue-blind)

#00323D

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #1b245e;
/* rgb */ color: rgb(27, 36, 94);
/* oklch */ color: oklch(29.1% 0.103 271.7);

Tailwind

colors: {
  custom: {
    50: '#615e8c',
    500: '#1b245e',
    950: '#000000',
  },
}

SCSS

$custom: #1b245e;
$custom-light: #615e8c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b245e",
  "rgb": {
    "r": 27,
    "g": 36,
    "b": 94
  },
  "hsl": {
    "h": 231.94,
    "s": 55.372,
    "l": 23.725
  },
  "oklch": {
    "l": 0.29131,
    "c": 0.10333,
    "h": 271.7
  },
  "luminance": 0.02303
}

Semantic roles & 50–950 ramp

primary

#1B245E

secondary

#948941

accent

#CB49DF

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05040C

muted

#7A797D

Preview Lab

Preview with #1B245E

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

Preview Lab → · Contrast checker → · Palette generator →