#1D4483#1D4483

#1D4483 is a dark, moderate blue. Relative luminance 0.060; OKLCH L 39.5% C 0.115 H 259.6°. Best body text is #FFFFFF at 9.52:1 contrast (WCAG AA passes).

Color values

HEX	#1D4483
RGB	rgb(29, 68, 131)
HSL	hsl(217, 64%, 31%)
HSV	hsv(217, 78%, 51%)
CMYK	cmyk(77.9%, 48.1%, 0%, 48.6%)
CIE-LAB	lab(29.50, 10.12, -39.42)
CIE-LCH	lch(29.50, 40.69, 284.40°)
OKLab	oklab(39.54% -0.0207 -0.1131)
OKLCH	oklch(39.54% 0.115 259.6)
XYZ	xyz(6.6691, 6.0334, 22.2814)
Luminance	0.0603 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4483 #835C1D

analogous

#1D7783 #1D4483 #291D83

triadic

#1D4483 #831D44 #44831D

tetradic

#1D4483 #831D77 #835C1D #1D8329

square

#1D4483 #831D77 #835C1D #1D8329

split-complementary

#1D4483 #83291D #77831D

monochromatic

#07101F #122A51 #1D4483 #285EB5 #457CD6

Accessibility & contrast

On white

9.52

#1D4483 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#1D4483 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4483

9.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4483	#FFFFFF	#000000	##FFFFFF
##1D4483	1.00	9.52	2.21	9.52
#FFFFFF	9.52	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#224A85

Deuteranopia (green-blind)

#084182

Tritanopia (blue-blind)

#00535D

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1d4483;
/* rgb */ color: rgb(29, 68, 131);
/* oklch */ color: oklch(39.5% 0.115 259.6);

Tailwind

colors: {
  custom: {
    50: '#6977a7',
    500: '#1d4483',
    950: '#000000',
  },
}

SCSS

$custom: #1d4483;
$custom-light: #6977a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4483",
  "rgb": {
    "r": 29,
    "g": 68,
    "b": 131
  },
  "hsl": {
    "h": 217.059,
    "s": 63.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.39538,
    "c": 0.11496,
    "h": 259.6
  },
  "luminance": 0.06034
}

Semantic roles & 50–950 ramp

primary

#1D4483

secondary

#B68B46

accent

#A741E7

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1D4483

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

Preview Lab → · Contrast checker → · Palette generator →