#1D4083#1D4083

#1D4083 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 38.6% C 0.120 H 261.8°. Best body text is #FFFFFF at 9.94:1 contrast (WCAG AA passes).

Color values

HEX	#1D4083
RGB	rgb(29, 64, 131)
HSL	hsl(219, 64%, 31%)
HSV	hsv(219, 78%, 51%)
CMYK	cmyk(77.9%, 51.1%, 0%, 48.6%)
CIE-LAB	lab(28.29, 12.88, -41.36)
CIE-LCH	lch(28.29, 43.32, 287.30°)
OKLab	oklab(38.61% -0.0172 -0.1189)
OKLCH	oklch(38.61% 0.12 261.8)
XYZ	xyz(6.4354, 5.5660, 22.2035)
Luminance	0.0557 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4083 #83601D

analogous

#1D7383 #1D4083 #2D1D83

triadic

#1D4083 #831D40 #40831D

tetradic

#1D4083 #831D73 #83601D #1D832D

square

#1D4083 #831D73 #83601D #1D832D

split-complementary

#1D4083 #832D1D #73831D

monochromatic

#070F1F #122851 #1D4083 #2858B5 #4576D6

Accessibility & contrast

On white

9.94

#1D4083 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#1D4083 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4083

9.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4083	#FFFFFF	#000000	##FFFFFF
##1D4083	1.00	9.94	2.11	9.94
#FFFFFF	9.94	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#184885

Deuteranopia (green-blind)

#003E82

Tritanopia (blue-blind)

#00505B

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1d4083;
/* rgb */ color: rgb(29, 64, 131);
/* oklch */ color: oklch(38.6% 0.120 261.8);

Tailwind

colors: {
  custom: {
    50: '#6974a7',
    500: '#1d4083',
    950: '#000000',
  },
}

SCSS

$custom: #1d4083;
$custom-light: #6974a7;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4083",
  "rgb": {
    "r": 29,
    "g": 64,
    "b": 131
  },
  "hsl": {
    "h": 219.412,
    "s": 63.75,
    "l": 31.373
  },
  "oklch": {
    "l": 0.38613,
    "c": 0.12011,
    "h": 261.8
  },
  "luminance": 0.05567
}

Semantic roles & 50–950 ramp

primary

#1D4083

secondary

#B69046

accent

#AE41E7

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1D4083

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

Preview Lab → · Contrast checker → · Palette generator →