#1D4282#1D4282

#1D4282 is a dark, moderate blue. Relative luminance 0.058; OKLCH L 39.0% C 0.116 H 260.5°. Best body text is #FFFFFF at 9.75:1 contrast (WCAG AA passes).

Color values

HEX	#1D4282
RGB	rgb(29, 66, 130)
HSL	hsl(218, 64%, 31%)
HSV	hsv(218, 78%, 51%)
CMYK	cmyk(77.7%, 49.2%, 0%, 49%)
CIE-LAB	lab(28.82, 11.09, -39.88)
CIE-LCH	lch(28.82, 41.39, 285.55°)
OKLab	oklab(39% -0.0191 -0.1145)
OKLCH	oklch(39% 0.116 260.5)
XYZ	xyz(6.4827, 5.7686, 21.8866)
Luminance	0.0577 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4282 #825D1D

analogous

#1D7482 #1D4282 #2A1D82

triadic

#1D4282 #821D42 #42821D

tetradic

#1D4282 #821D74 #825D1D #1D822A

square

#1D4282 #821D74 #825D1D #1D822A

split-complementary

#1D4282 #822A1D #74821D

monochromatic

#070F1E #122950 #1D4282 #285BB4 #4479D5

Accessibility & contrast

On white

9.75

#1D4282 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#1D4282 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4282

9.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4282	#FFFFFF	#000000	##FFFFFF
##1D4282	1.00	9.75	2.15	9.75
#FFFFFF	9.75	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F4984

Deuteranopia (green-blind)

#024081

Tritanopia (blue-blind)

#00515B

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #1d4282;
/* rgb */ color: rgb(29, 66, 130);
/* oklch */ color: oklch(39.0% 0.116 260.5);

Tailwind

colors: {
  custom: {
    50: '#6975a7',
    500: '#1d4282',
    950: '#000000',
  },
}

SCSS

$custom: #1d4282;
$custom-light: #6975a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4282",
  "rgb": {
    "r": 29,
    "g": 66,
    "b": 130
  },
  "hsl": {
    "h": 218.02,
    "s": 63.522,
    "l": 31.176
  },
  "oklch": {
    "l": 0.38997,
    "c": 0.11607,
    "h": 260.5
  },
  "luminance": 0.05769
}

Semantic roles & 50–950 ramp

primary

#1D4282

secondary

#B58C46

accent

#AA41E7

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1D4282

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

Preview Lab → · Contrast checker → · Palette generator →