#1B2A4D#1B2A4D

#1B2A4D is a dark, moderate blue. Relative luminance 0.024; OKLCH L 29.2% C 0.067 H 265.0°. Best body text is #FFFFFF at 14.14:1 contrast (WCAG AA passes).

Color values

HEX	#1B2A4D
RGB	rgb(27, 42, 77)
HSL	hsl(222, 48%, 20%)
HSV	hsv(222, 65%, 30%)
CMYK	cmyk(64.9%, 45.5%, 0%, 69.8%)
CIE-LAB	lab(17.57, 6.31, -23.55)
CIE-LCH	lch(17.57, 24.38, 285.00°)
OKLab	oklab(29.16% -0.0058 -0.0669)
OKLCH	oklch(29.16% 0.067 265)
XYZ	xyz(2.6191, 2.4245, 7.3497)
Luminance	0.0243 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2A4D #4D3E1B

analogous

#1B434D #1B2A4D #251B4D

triadic

#1B2A4D #4D1B2A #2A4D1B

tetradic

#1B2A4D #4D1B43 #4D3E1B #1B4D25

square

#1B2A4D #4D1B43 #4D3E1B #1B4D25

split-complementary

#1B2A4D #4D251B #434D1B

monochromatic

#080C17 #0B1120 #1B2A4D #2B437A #3B5BA8

Accessibility & contrast

On white

14.14

#1B2A4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#1B2A4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2A4D

14.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2A4D	#FFFFFF	#000000	##FFFFFF
##1B2A4D	1.00	14.14	1.49	14.14
#FFFFFF	14.14	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B2E4E

Deuteranopia (green-blind)

#14294C

Tritanopia (blue-blind)

#003237

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #1b2a4d;
/* rgb */ color: rgb(27, 42, 77);
/* oklch */ color: oklch(29.2% 0.067 265.0);

Tailwind

colors: {
  custom: {
    50: '#5c637f',
    500: '#1b2a4d',
    950: '#000000',
  },
}

SCSS

$custom: #1b2a4d;
$custom-light: #5c637f;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2a4d",
  "rgb": {
    "r": 27,
    "g": 42,
    "b": 77
  },
  "hsl": {
    "h": 222,
    "s": 48.077,
    "l": 20.392
  },
  "oklch": {
    "l": 0.29156,
    "c": 0.0672,
    "h": 265
  },
  "luminance": 0.02425
}

Semantic roles & 50–950 ramp

primary

#1B2A4D

secondary

#836F41

accent

#AF50D8

background

#F5F5F7

surface

#E9EAEE

border

#C5C6C9

text

#04050A

muted

#79797C

Preview Lab

Preview with #1B2A4D

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

Preview Lab → · Contrast checker → · Palette generator →