#1D4F9D#1D4F9D

#1D4F9D is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.0% C 0.138 H 259.3°. Best body text is #FFFFFF at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#1D4F9D
RGB	rgb(29, 79, 157)
HSL	hsl(217, 69%, 36%)
HSV	hsv(217, 82%, 62%)
CMYK	cmyk(81.5%, 49.7%, 0%, 38.4%)
CIE-LAB	lab(34.57, 13.13, -47.14)
CIE-LCH	lch(34.57, 48.94, 285.56°)
OKLab	oklab(44.01% -0.0256 -0.1356)
OKLCH	oklch(44.01% 0.138 259.3)
XYZ	xyz(9.3863, 8.2864, 32.9965)
Luminance	0.0829 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4F9D #9D6B1D

analogous

#1D8F9D #1D4F9D #2B1D9D

triadic

#1D4F9D #9D1D4F #4F9D1D

tetradic

#1D4F9D #9D1D8F #9D6B1D #1D9D2B

square

#1D4F9D #9D1D8F #9D6B1D #1D9D2B

split-complementary

#1D4F9D #9D2B1D #8F9D1D

monochromatic

#0A1B36 #133569 #1D4F9D #2769D1 #558BE0

Accessibility & contrast

On white

7.90

#1D4F9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#1D4F9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4F9D

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4F9D	#FFFFFF	#000000	##FFFFFF
##1D4F9D	1.00	7.90	2.66	7.90
#FFFFFF	7.90	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2157A0

Deuteranopia (green-blind)

#004C9B

Tritanopia (blue-blind)

#00626E

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1d4f9d;
/* rgb */ color: rgb(29, 79, 157);
/* oklch */ color: oklch(44.0% 0.138 259.3);

Tailwind

colors: {
  custom: {
    50: '#6f7fba',
    500: '#1d4f9d',
    950: '#000000',
  },
}

SCSS

$custom: #1d4f9d;
$custom-light: #6f7fba;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4f9d",
  "rgb": {
    "r": 29,
    "g": 79,
    "b": 157
  },
  "hsl": {
    "h": 216.563,
    "s": 68.817,
    "l": 36.471
  },
  "oklch": {
    "l": 0.44013,
    "c": 0.138,
    "h": 259.3
  },
  "luminance": 0.08287
}

Semantic roles & 50–950 ramp

primary

#1D4F9D

secondary

#C39753

accent

#A73CEC

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#080A12

muted

#7B7C81

Preview Lab

Preview with #1D4F9D

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

Preview Lab → · Contrast checker → · Palette generator →