#1B2E5E#1B2E5E

#1B2E5E is a dark, moderate blue. Relative luminance 0.030; OKLCH L 31.4% C 0.089 H 265.4°. Best body text is #FFFFFF at 13.13:1 contrast (WCAG AA passes).

Color values

HEX	#1B2E5E
RGB	rgb(27, 46, 94)
HSL	hsl(223, 55%, 24%)
HSV	hsv(223, 71%, 37%)
CMYK	cmyk(71.3%, 51.1%, 0%, 63.1%)
CIE-LAB	lab(20.02, 10.26, -30.99)
CIE-LCH	lch(20.02, 32.65, 288.31°)
OKLab	oklab(31.41% -0.0072 -0.0888)
OKLCH	oklch(31.41% 0.089 265.4)
XYZ	xyz(3.4487, 2.9948, 10.9838)
Luminance	0.0300 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2E5E #5E4B1B

analogous

#1B4F5E #1B2E5E #291B5E

triadic

#1B2E5E #5E1B2E #2E5E1B

tetradic

#1B2E5E #5E1B4F #5E4B1B #1B5E29

square

#1B2E5E #5E1B4F #5E4B1B #1B5E29

split-complementary

#1B2E5E #5E291B #4F5E1B

monochromatic

#070C18 #0D172E #1B2E5E #29458E #365DBD

Accessibility & contrast

On white

13.13

#1B2E5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#1B2E5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2E5E

13.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2E5E	#FFFFFF	#000000	##FFFFFF
##1B2E5E	1.00	13.13	1.60	13.13
#FFFFFF	13.13	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#153460

Deuteranopia (green-blind)

#072D5D

Tritanopia (blue-blind)

#003941

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1b2e5e;
/* rgb */ color: rgb(27, 46, 94);
/* oklch */ color: oklch(31.4% 0.089 265.4);

Tailwind

colors: {
  custom: {
    50: '#60668c',
    500: '#1b2e5e',
    950: '#000000',
  },
}

SCSS

$custom: #1b2e5e;
$custom-light: #60668c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2e5e",
  "rgb": {
    "r": 27,
    "g": 46,
    "b": 94
  },
  "hsl": {
    "h": 222.985,
    "s": 55.372,
    "l": 23.725
  },
  "oklch": {
    "l": 0.31413,
    "c": 0.08905,
    "h": 265.4
  },
  "luminance": 0.02995
}

Semantic roles & 50–950 ramp

primary

#1B2E5E

secondary

#947C41

accent

#B449DF

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05050C

muted

#797A7D

Preview Lab

Preview with #1B2E5E

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

Preview Lab → · Contrast checker → · Palette generator →