#1D4D9D#1D4D9D

#1D4D9D is a dark, vivid blue. Relative luminance 0.080; OKLCH L 43.6% C 0.140 H 260.1°. Best body text is #FFFFFF at 8.08:1 contrast (WCAG AA passes).

Color values

HEX	#1D4D9D
RGB	rgb(29, 77, 157)
HSL	hsl(218, 69%, 36%)
HSV	hsv(218, 82%, 62%)
CMYK	cmyk(81.5%, 51%, 0%, 38.4%)
CIE-LAB	lab(33.99, 14.48, -48.09)
CIE-LCH	lch(33.99, 50.22, 286.75°)
OKLab	oklab(43.57% -0.024 -0.1384)
OKLCH	oklch(43.57% 0.14 260.1)
XYZ	xyz(9.2442, 8.0022, 32.9491)
Luminance	0.0800 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4D9D #9D6D1D

analogous

#1D8D9D #1D4D9D #2D1D9D

triadic

#1D4D9D #9D1D4D #4D9D1D

tetradic

#1D4D9D #9D1D8D #9D6D1D #1D9D2D

square

#1D4D9D #9D1D8D #9D6D1D #1D9D2D

split-complementary

#1D4D9D #9D2D1D #8D9D1D

monochromatic

#0A1A36 #133469 #1D4D9D #2766D1 #5589E0

Accessibility & contrast

On white

8.08

#1D4D9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.60

#1D4D9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4D9D

8.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4D9D	#FFFFFF	#000000	##FFFFFF
##1D4D9D	1.00	8.08	2.60	8.08
#FFFFFF	8.08	1.00	21.00	1.00
#000000	2.60	21.00	1.00	21.00
##FFFFFF	8.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B56A0

Deuteranopia (green-blind)

#004A9B

Tritanopia (blue-blind)

#00606D

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1d4d9d;
/* rgb */ color: rgb(29, 77, 157);
/* oklch */ color: oklch(43.6% 0.140 260.1);

Tailwind

colors: {
  custom: {
    50: '#6f7eba',
    500: '#1d4d9d',
    950: '#000000',
  },
}

SCSS

$custom: #1d4d9d;
$custom-light: #6f7eba;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4d9d",
  "rgb": {
    "r": 29,
    "g": 77,
    "b": 157
  },
  "hsl": {
    "h": 217.5,
    "s": 68.817,
    "l": 36.471
  },
  "oklch": {
    "l": 0.43565,
    "c": 0.14049,
    "h": 260.1
  },
  "luminance": 0.08003
}

Semantic roles & 50–950 ramp

primary

#1D4D9D

secondary

#C39953

accent

#AA3CEC

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1D4D9D

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

Preview Lab → · Contrast checker → · Palette generator →