#1D4789#1D4789

#1D4789 is a dark, moderate blue. Relative luminance 0.066; OKLCH L 40.7% C 0.120 H 259.3°. Best body text is #FFFFFF at 9.07:1 contrast (WCAG AA passes).

Color values

HEX	#1D4789
RGB	rgb(29, 71, 137)
HSL	hsl(217, 65%, 33%)
HSV	hsv(217, 79%, 54%)
CMYK	cmyk(78.8%, 48.2%, 0%, 46.3%)
CIE-LAB	lab(30.81, 10.49, -41.01)
CIE-LCH	lch(30.81, 42.33, 284.35°)
OKLab	oklab(40.68% -0.0223 -0.1177)
OKLCH	oklch(40.68% 0.12 259.3)
XYZ	xyz(7.2736, 6.5730, 24.5474)
Luminance	0.0657 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4789 #895F1D

analogous

#1D7D89 #1D4789 #291D89

triadic

#1D4789 #891D47 #47891D

tetradic

#1D4789 #891D7D #895F1D #1D8929

square

#1D4789 #891D7D #895F1D #1D8929

split-complementary

#1D4789 #89291D #7D891D

monochromatic

#081324 #122D56 #1D4789 #2861BC #4880D8

Accessibility & contrast

On white

9.07

#1D4789 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#1D4789 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4789

9.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4789	#FFFFFF	#000000	##FFFFFF
##1D4789	1.00	9.07	2.31	9.07
#FFFFFF	9.07	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#234E8B

Deuteranopia (green-blind)

#064488

Tritanopia (blue-blind)

#005761

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #1d4789;
/* rgb */ color: rgb(29, 71, 137);
/* oklch */ color: oklch(40.7% 0.120 259.3);

Tailwind

colors: {
  custom: {
    50: '#6a79ac',
    500: '#1d4789',
    950: '#000000',
  },
}

SCSS

$custom: #1d4789;
$custom-light: #6a79ac;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4789",
  "rgb": {
    "r": 29,
    "g": 71,
    "b": 137
  },
  "hsl": {
    "h": 216.667,
    "s": 65.06,
    "l": 32.549
  },
  "oklch": {
    "l": 0.40684,
    "c": 0.11981,
    "h": 259.3
  },
  "luminance": 0.06574
}

Semantic roles & 50–950 ramp

primary

#1D4789

secondary

#BA8E47

accent

#A740E8

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #1D4789

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

Preview Lab → · Contrast checker → · Palette generator →