#1D4080#1D4080

#1D4080 is a dark, moderate blue. Relative luminance 0.055; OKLCH L 38.4% C 0.116 H 261.2°. Best body text is #FFFFFF at 10.01:1 contrast (WCAG AA passes).

Color values

HEX	#1D4080
RGB	rgb(29, 64, 128)
HSL	hsl(219, 63%, 31%)
HSV	hsv(219, 77%, 50%)
CMYK	cmyk(77.3%, 50%, 0%, 49.8%)
CIE-LAB	lab(28.08, 11.67, -39.83)
CIE-LCH	lch(28.08, 41.51, 286.33°)
OKLab	oklab(38.38% -0.0176 -0.1144)
OKLCH	oklch(38.38% 0.116 261.2)
XYZ	xyz(6.2350, 5.4858, 21.1482)
Luminance	0.0549 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4080 #805D1D

analogous

#1D7180 #1D4080 #2B1D80

triadic

#1D4080 #801D40 #40801D

tetradic

#1D4080 #801D71 #805D1D #1D802B

square

#1D4080 #801D71 #805D1D #1D802B

split-complementary

#1D4080 #802B1D #71801D

monochromatic

#060E1C #12274E #1D4080 #2859B2 #4376D4

Accessibility & contrast

On white

10.01

#1D4080 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.10

#1D4080 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4080

10.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4080	#FFFFFF	#000000	##FFFFFF
##1D4080	1.00	10.01	2.10	10.01
#FFFFFF	10.01	1.00	21.00	1.00
#000000	2.10	21.00	1.00	21.00
##FFFFFF	10.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C4782

Deuteranopia (green-blind)

#003E7F

Tritanopia (blue-blind)

#004F5A

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #1d4080;
/* rgb */ color: rgb(29, 64, 128);
/* oklch */ color: oklch(38.4% 0.116 261.2);

Tailwind

colors: {
  custom: {
    50: '#6874a5',
    500: '#1d4080',
    950: '#000000',
  },
}

SCSS

$custom: #1d4080;
$custom-light: #6874a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4080",
  "rgb": {
    "r": 29,
    "g": 64,
    "b": 128
  },
  "hsl": {
    "h": 218.788,
    "s": 63.057,
    "l": 30.784
  },
  "oklch": {
    "l": 0.38381,
    "c": 0.11574,
    "h": 261.2
  },
  "luminance": 0.05487
}

Semantic roles & 50–950 ramp

primary

#1D4080

secondary

#B38C45

accent

#AC42E6

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1D4080

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

Preview Lab → · Contrast checker → · Palette generator →