#1B2D6E#1B2D6E

#1B2D6E is a dark, moderate blue. Relative luminance 0.032; OKLCH L 32.5% C 0.115 H 267.7°. Best body text is #FFFFFF at 12.75:1 contrast (WCAG AA passes).

Color values

HEX	#1B2D6E
RGB	rgb(27, 45, 110)
HSL	hsl(227, 61%, 27%)
HSV	hsv(227, 75%, 43%)
CMYK	cmyk(75.5%, 59.1%, 0%, 56.9%)
CIE-LAB	lab(20.96, 17.51, -39.91)
CIE-LCH	lch(20.96, 43.58, 293.68°)
OKLab	oklab(32.52% -0.0046 -0.115)
OKLCH	oklch(32.52% 0.115 267.7)
XYZ	xyz(4.2039, 3.2351, 15.1517)
Luminance	0.0324 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2D6E #6E5C1B

analogous

#1B576E #1B2D6E #331B6E

triadic

#1B2D6E #6E1B2D #2D6E1B

tetradic

#1B2D6E #6E1B57 #6E5C1B #1B6E33

square

#1B2D6E #6E1B57 #6E5C1B #1B6E33

split-complementary

#1B2D6E #6E331B #576E1B

monochromatic

#060A19 #0F193D #1B2D6E #27419F #3657CE

Accessibility & contrast

On white

12.75

#1B2D6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#1B2D6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2D6E

12.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2D6E	#FFFFFF	#000000	##FFFFFF
##1B2D6E	1.00	12.75	1.65	12.75
#FFFFFF	12.75	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003670

Deuteranopia (green-blind)

#002F6D

Tritanopia (blue-blind)

#003D48

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #1b2d6e;
/* rgb */ color: rgb(27, 45, 110);
/* oklch */ color: oklch(32.5% 0.115 267.7);

Tailwind

colors: {
  custom: {
    50: '#646598',
    500: '#1b2d6e',
    950: '#000000',
  },
}

SCSS

$custom: #1b2d6e;
$custom-light: #646598;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2d6e",
  "rgb": {
    "r": 27,
    "g": 45,
    "b": 110
  },
  "hsl": {
    "h": 226.988,
    "s": 60.584,
    "l": 26.863
  },
  "oklch": {
    "l": 0.32519,
    "c": 0.11511,
    "h": 267.7
  },
  "luminance": 0.03236
}

Semantic roles & 50–950 ramp

primary

#1B2D6E

secondary

#A38E42

accent

#C144E4

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06050E

muted

#7A7A7E

Preview Lab

Preview with #1B2D6E

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

Preview Lab → · Contrast checker → · Palette generator →