#1D3365#1D3365

#1D3365 is a dark, moderate blue. Relative luminance 0.036; OKLCH L 33.3% C 0.092 H 264.2°. Best body text is #FFFFFF at 12.25:1 contrast (WCAG AA passes).

Color values

HEX	#1D3365
RGB	rgb(29, 51, 101)
HSL	hsl(222, 55%, 25%)
HSV	hsv(222, 71%, 40%)
CMYK	cmyk(71.3%, 49.5%, 0%, 60.4%)
CIE-LAB	lab(22.19, 9.87, -32.09)
CIE-LCH	lch(22.19, 33.58, 287.09°)
OKLab	oklab(33.26% -0.0094 -0.0919)
OKLCH	oklch(33.26% 0.092 264.2)
XYZ	xyz(4.0387, 3.5681, 12.7853)
Luminance	0.0357 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3365 #654F1D

analogous

#1D5765 #1D3365 #2B1D65

triadic

#1D3365 #651D33 #33651D

tetradic

#1D3365 #651D57 #654F1D #1D652B

square

#1D3365 #651D57 #654F1D #1D652B

split-complementary

#1D3365 #652B1D #57651D

monochromatic

#070C18 #0F1B35 #1D3365 #2B4B95 #3863C4

Accessibility & contrast

On white

12.25

#1D3365 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#1D3365 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3365

12.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3365	#FFFFFF	#000000	##FFFFFF
##1D3365	1.00	12.25	1.71	12.25
#FFFFFF	12.25	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A3967

Deuteranopia (green-blind)

#0B3264

Tritanopia (blue-blind)

#003F47

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1d3365;
/* rgb */ color: rgb(29, 51, 101);
/* oklch */ color: oklch(33.3% 0.092 264.2);

Tailwind

colors: {
  custom: {
    50: '#626a91',
    500: '#1d3365',
    950: '#000000',
  },
}

SCSS

$custom: #1d3365;
$custom-light: #626a91;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3365",
  "rgb": {
    "r": 29,
    "g": 51,
    "b": 101
  },
  "hsl": {
    "h": 221.667,
    "s": 55.385,
    "l": 25.49
  },
  "oklch": {
    "l": 0.33259,
    "c": 0.09235,
    "h": 264.2
  },
  "luminance": 0.03568
}

Semantic roles & 50–950 ramp

primary

#1D3365

secondary

#9A8044

accent

#B149DF

background

#F6F6F8

surface

#EBEBF0

border

#C6C6CB

text

#06060D

muted

#7A7A7D

Preview Lab

Preview with #1D3365

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

Preview Lab → · Contrast checker → · Palette generator →