#1D2B64#1D2B64

#1D2B64 is a dark, moderate blue. Relative luminance 0.029; OKLCH L 31.3% C 0.102 H 269.3°. Best body text is #FFFFFF at 13.28:1 contrast (WCAG AA passes).

Color values

HEX	#1D2B64
RGB	rgb(29, 43, 100)
HSL	hsl(228, 55%, 25%)
HSV	hsv(228, 71%, 39%)
CMYK	cmyk(71%, 57%, 0%, 60.8%)
CIE-LAB	lab(19.67, 15.23, -35.49)
CIE-LCH	lch(19.67, 38.62, 293.22°)
OKLab	oklab(31.32% -0.0012 -0.102)
OKLCH	oklch(31.32% 0.102 269.3)
XYZ	xyz(3.6700, 2.9087, 12.4221)
Luminance	0.0291 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2B64 #64561D

analogous

#1D4E64 #1D2B64 #321D64

triadic

#1D2B64 #641D2B #2B641D

tetradic

#1D2B64 #641D4E #64561D #1D6432

square

#1D2B64 #641D4E #64561D #1D6432

split-complementary

#1D2B64 #64321D #4E641D

monochromatic

#070A18 #0F1735 #1D2B64 #2B3F93 #3954C3

Accessibility & contrast

On white

13.28

#1D2B64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#1D2B64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2B64

13.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2B64	#FFFFFF	#000000	##FFFFFF
##1D2B64	1.00	13.28	1.58	13.28
#FFFFFF	13.28	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#043366

Deuteranopia (green-blind)

#002D63

Tritanopia (blue-blind)

#003943

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #1d2b64;
/* rgb */ color: rgb(29, 43, 100);
/* oklch */ color: oklch(31.3% 0.102 269.3);

Tailwind

colors: {
  custom: {
    50: '#636491',
    500: '#1d2b64',
    950: '#000000',
  },
}

SCSS

$custom: #1d2b64;
$custom-light: #636491;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2b64",
  "rgb": {
    "r": 29,
    "g": 43,
    "b": 100
  },
  "hsl": {
    "h": 228.169,
    "s": 55.039,
    "l": 25.294
  },
  "oklch": {
    "l": 0.31325,
    "c": 0.10201,
    "h": 269.3
  },
  "luminance": 0.02909
}

Semantic roles & 50–950 ramp

primary

#1D2B64

secondary

#998844

accent

#C149DE

background

#F6F5F8

surface

#EBEAF0

border

#C6C6CB

text

#06050D

muted

#7A797D

Preview Lab

Preview with #1D2B64

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

Preview Lab → · Contrast checker → · Palette generator →