#1B2D64#1B2D64

#1B2D64 is a dark, moderate blue. Relative luminance 0.030; OKLCH L 31.7% C 0.100 H 266.9°. Best body text is #FFFFFF at 13.08:1 contrast (WCAG AA passes).

Color values

HEX	#1B2D64
RGB	rgb(27, 45, 100)
HSL	hsl(225, 57%, 25%)
HSV	hsv(225, 73%, 39%)
CMYK	cmyk(73%, 55%, 0%, 60.8%)
CIE-LAB	lab(20.16, 13.43, -34.71)
CIE-LCH	lch(20.16, 37.22, 291.15°)
OKLab	oklab(31.66% -0.0054 -0.0997)
OKLCH	oklch(31.66% 0.1 266.9)
XYZ	xyz(3.6898, 3.0295, 12.4444)
Luminance	0.0303 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2D64 #64521B

analogous

#1B5264 #1B2D64 #2D1B64

triadic

#1B2D64 #641B2D #2D641B

tetradic

#1B2D64 #641B52 #64521B #1B642D

square

#1B2D64 #641B52 #64521B #1B642D

split-complementary

#1B2D64 #642D1B #52641B

monochromatic

#070B18 #0E1734 #1B2D64 #284394 #3558C4

Accessibility & contrast

On white

13.08

#1B2D64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#1B2D64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2D64

13.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2D64	#FFFFFF	#000000	##FFFFFF
##1B2D64	1.00	13.08	1.61	13.08
#FFFFFF	13.08	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0A3466

Deuteranopia (green-blind)

#002D63

Tritanopia (blue-blind)

#003A43

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #1b2d64;
/* rgb */ color: rgb(27, 45, 100);
/* oklch */ color: oklch(31.7% 0.100 266.9);

Tailwind

colors: {
  custom: {
    50: '#626591',
    500: '#1b2d64',
    950: '#000000',
  },
}

SCSS

$custom: #1b2d64;
$custom-light: #626591;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2d64",
  "rgb": {
    "r": 27,
    "g": 45,
    "b": 100
  },
  "hsl": {
    "h": 225.205,
    "s": 57.48,
    "l": 24.902
  },
  "oklch": {
    "l": 0.31662,
    "c": 0.09985,
    "h": 266.9
  },
  "luminance": 0.0303
}

Semantic roles & 50–950 ramp

primary

#1B2D64

secondary

#998441

accent

#BB47E1

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#05050D

muted

#7A7A7D

Preview Lab

Preview with #1B2D64

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

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