#1B2D5E#1B2D5E

#1B2D5E is a dark, moderate blue. Relative luminance 0.029; OKLCH L 31.2% C 0.090 H 266.1°. Best body text is #FFFFFF at 13.26:1 contrast (WCAG AA passes).

Color values

HEX	#1B2D5E
RGB	rgb(27, 45, 94)
HSL	hsl(224, 55%, 24%)
HSV	hsv(224, 71%, 37%)
CMYK	cmyk(71.3%, 52.1%, 0%, 63.1%)
CIE-LAB	lab(19.71, 10.98, -31.50)
CIE-LCH	lch(19.71, 33.36, 289.23°)
OKLab	oklab(31.18% -0.0061 -0.0902)
OKLCH	oklch(31.18% 0.09 266.1)
XYZ	xyz(3.4101, 2.9176, 10.9709)
Luminance	0.0292 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2D5E #5E4C1B

analogous

#1B4E5E #1B2D5E #2A1B5E

triadic

#1B2D5E #5E1B2D #2D5E1B

tetradic

#1B2D5E #5E1B4E #5E4C1B #1B5E2A

square

#1B2D5E #5E1B4E #5E4C1B #1B5E2A

split-complementary

#1B2D5E #5E2A1B #4E5E1B

monochromatic

#070B18 #0D162E #1B2D5E #29448E #365BBD

Accessibility & contrast

On white

13.26

#1B2D5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#1B2D5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2D5E

13.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2D5E	#FFFFFF	#000000	##FFFFFF
##1B2D5E	1.00	13.26	1.58	13.26
#FFFFFF	13.26	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#133360

Deuteranopia (green-blind)

#042D5D

Tritanopia (blue-blind)

#003841

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1b2d5e;
/* rgb */ color: rgb(27, 45, 94);
/* oklch */ color: oklch(31.2% 0.090 266.1);

Tailwind

colors: {
  custom: {
    50: '#60658c',
    500: '#1b2d5e',
    950: '#000000',
  },
}

SCSS

$custom: #1b2d5e;
$custom-light: #60658c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2d5e",
  "rgb": {
    "r": 27,
    "g": 45,
    "b": 94
  },
  "hsl": {
    "h": 223.881,
    "s": 55.372,
    "l": 23.725
  },
  "oklch": {
    "l": 0.31175,
    "c": 0.09046,
    "h": 266.1
  },
  "luminance": 0.02918
}

Semantic roles & 50–950 ramp

primary

#1B2D5E

secondary

#947D41

accent

#B749DF

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05050C

muted

#797A7D

Preview Lab

Preview with #1B2D5E

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

Preview Lab → · Contrast checker → · Palette generator →