#1D4584#1D4584

#1D4584 is a dark, moderate blue. Relative luminance 0.062; OKLCH L 39.8% C 0.115 H 259.3°. Best body text is #FFFFFF at 9.39:1 contrast (WCAG AA passes).

Color values

HEX	#1D4584
RGB	rgb(29, 69, 132)
HSL	hsl(217, 64%, 32%)
HSV	hsv(217, 78%, 52%)
CMYK	cmyk(78%, 47.7%, 0%, 48.2%)
CIE-LAB	lab(29.87, 9.84, -39.44)
CIE-LCH	lch(29.87, 40.65, 284.01°)
OKLab	oklab(39.85% -0.0214 -0.1131)
OKLCH	oklch(39.85% 0.115 259.3)
XYZ	xyz(6.7982, 6.1826, 22.6604)
Luminance	0.0618 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4584 #845C1D

analogous

#1D7984 #1D4584 #291D84

triadic

#1D4584 #841D45 #45841D

tetradic

#1D4584 #841D79 #845C1D #1D8429

square

#1D4584 #841D79 #845C1D #1D8429

split-complementary

#1D4584 #84291D #79841D

monochromatic

#071120 #122B52 #1D4584 #285FB6 #457ED6

Accessibility & contrast

On white

9.39

#1D4584 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#1D4584 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4584

9.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4584	#FFFFFF	#000000	##FFFFFF
##1D4584	1.00	9.39	2.24	9.39
#FFFFFF	9.39	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#244B86

Deuteranopia (green-blind)

#0A4283

Tritanopia (blue-blind)

#00545E

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #1d4584;
/* rgb */ color: rgb(29, 69, 132);
/* oklch */ color: oklch(39.8% 0.115 259.3);

Tailwind

colors: {
  custom: {
    50: '#6978a8',
    500: '#1d4584',
    950: '#000000',
  },
}

SCSS

$custom: #1d4584;
$custom-light: #6978a8;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4584",
  "rgb": {
    "r": 29,
    "g": 69,
    "b": 132
  },
  "hsl": {
    "h": 216.699,
    "s": 63.975,
    "l": 31.569
  },
  "oklch": {
    "l": 0.39847,
    "c": 0.11514,
    "h": 259.3
  },
  "luminance": 0.06183
}

Semantic roles & 50–950 ramp

primary

#1D4584

secondary

#B78B46

accent

#A641E7

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #1D4584

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

Preview Lab → · Contrast checker → · Palette generator →