#1B2463#1B2463

#1B2463 is a dark, moderate blue. Relative luminance 0.024; OKLCH L 29.6% C 0.111 H 271.6°. Best body text is #FFFFFF at 14.20:1 contrast (WCAG AA passes).

Color values

HEX	#1B2463
RGB	rgb(27, 36, 99)
HSL	hsl(233, 57%, 25%)
HSV	hsv(233, 73%, 39%)
CMYK	cmyk(72.7%, 63.6%, 0%, 61.2%)
CIE-LAB	lab(17.44, 19.55, -38.47)
CIE-LCH	lch(17.44, 43.15, 296.93°)
OKLab	oklab(29.59% 0.0031 -0.1109)
OKLCH	oklch(29.59% 0.111 271.6)
XYZ	xyz(3.3342, 2.3953, 12.0886)
Luminance	0.0240 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2463 #635A1B

analogous

#1B4863 #1B2463 #361B63

triadic

#1B2463 #631B24 #24631B

tetradic

#1B2463 #631B48 #635A1B #1B6336

square

#1B2463 #631B48 #635A1B #1B6336

split-complementary

#1B2463 #63361B #48631B

monochromatic

#070918 #0E1333 #1B2463 #283593 #3547C3

Accessibility & contrast

On white

14.20

#1B2463 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#1B2463 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2463

14.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2463	#FFFFFF	#000000	##FFFFFF
##1B2463	1.00	14.20	1.48	14.20
#FFFFFF	14.20	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E65

Deuteranopia (green-blind)

#002862

Tritanopia (blue-blind)

#00343F

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #1b2463;
/* rgb */ color: rgb(27, 36, 99);
/* oklch */ color: oklch(29.6% 0.111 271.6);

Tailwind

colors: {
  custom: {
    50: '#625e90',
    500: '#1b2463',
    950: '#000000',
  },
}

SCSS

$custom: #1b2463;
$custom-light: #625e90;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2463",
  "rgb": {
    "r": 27,
    "g": 36,
    "b": 99
  },
  "hsl": {
    "h": 232.5,
    "s": 57.143,
    "l": 24.706
  },
  "oklch": {
    "l": 0.29593,
    "c": 0.11095,
    "h": 271.6
  },
  "luminance": 0.02396
}

Semantic roles & 50–950 ramp

primary

#1B2463

secondary

#988E41

accent

#CD47E0

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#06040C

muted

#7A797D

Preview Lab

Preview with #1B2463

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

Preview Lab → · Contrast checker → · Palette generator →