#1D4D9E#1D4D9E

#1D4D9E is a dark, vivid blue. Relative luminance 0.080; OKLCH L 43.6% C 0.142 H 260.3°. Best body text is #FFFFFF at 8.05:1 contrast (WCAG AA passes).

Color values

HEX	#1D4D9E
RGB	rgb(29, 77, 158)
HSL	hsl(218, 69%, 37%)
HSV	hsv(218, 82%, 62%)
CMYK	cmyk(81.6%, 51.3%, 0%, 38%)
CIE-LAB	lab(34.06, 14.88, -48.58)
CIE-LCH	lch(34.06, 50.80, 287.03°)
OKLab	oklab(43.64% -0.0239 -0.1399)
OKLCH	oklch(43.64% 0.142 260.3)
XYZ	xyz(9.3299, 8.0365, 33.4006)
Luminance	0.0804 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4D9E #9E6E1D

analogous

#1D8E9E #1D4D9E #2D1D9E

triadic

#1D4D9E #9E1D4D #4D9E1D

tetradic

#1D4D9E #9E1D8E #9E6E1D #1D9E2D

square

#1D4D9E #9E1D8E #9E6E1D #1D9E2D

split-complementary

#1D4D9E #9E2D1D #8E9E1D

monochromatic

#0A1B37 #14346A #1D4D9E #2666D2 #5689E0

Accessibility & contrast

On white

8.05

#1D4D9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#1D4D9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4D9E

8.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4D9E	#FFFFFF	#000000	##FFFFFF
##1D4D9E	1.00	8.05	2.61	8.05
#FFFFFF	8.05	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1956A1

Deuteranopia (green-blind)

#004B9C

Tritanopia (blue-blind)

#00616E

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1d4d9e;
/* rgb */ color: rgb(29, 77, 158);
/* oklch */ color: oklch(43.6% 0.142 260.3);

Tailwind

colors: {
  custom: {
    50: '#6f7ebb',
    500: '#1d4d9e',
    950: '#000000',
  },
}

SCSS

$custom: #1d4d9e;
$custom-light: #6f7ebb;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4d9e",
  "rgb": {
    "r": 29,
    "g": 77,
    "b": 158
  },
  "hsl": {
    "h": 217.674,
    "s": 68.984,
    "l": 36.667
  },
  "oklch": {
    "l": 0.43642,
    "c": 0.14189,
    "h": 260.3
  },
  "luminance": 0.08038
}

Semantic roles & 50–950 ramp

primary

#1D4D9E

secondary

#C39A54

accent

#AA3CEC

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1D4D9E

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

Preview Lab → · Contrast checker → · Palette generator →