#1D4DA7#1D4DA7

#1D4DA7 is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.4% C 0.154 H 261.5°. Best body text is #FFFFFF at 7.86:1 contrast (WCAG AA passes).

Color values

HEX	#1D4DA7
RGB	rgb(29, 77, 167)
HSL	hsl(219, 70%, 38%)
HSV	hsv(219, 83%, 65%)
CMYK	cmyk(82.6%, 53.9%, 0%, 34.5%)
CIE-LAB	lab(34.72, 18.48, -52.91)
CIE-LCH	lch(34.72, 56.04, 289.25°)
OKLab	oklab(44.35% -0.0228 -0.1526)
OKLCH	oklch(44.35% 0.154 261.5)
XYZ	xyz(10.1331, 8.3578, 37.6309)
Luminance	0.0836 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4DA7 #A7771D

analogous

#1D92A7 #1D4DA7 #321DA7

triadic

#1D4DA7 #A71D4D #4DA71D

tetradic

#1D4DA7 #A71D92 #A7771D #1DA732

square

#1D4DA7 #A71D92 #A7771D #1DA732

split-complementary

#1D4DA7 #A7321D #92A71D

monochromatic

#0B1D3F #143573 #1D4DA7 #2866DA #5C8BE3

Accessibility & contrast

On white

7.86

#1D4DA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#1D4DA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4DA7

7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4DA7	#FFFFFF	#000000	##FFFFFF
##1D4DA7	1.00	7.86	2.67	7.86
#FFFFFF	7.86	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0358AA

Deuteranopia (green-blind)

#004CA5

Tritanopia (blue-blind)

#006372

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1d4da7;
/* rgb */ color: rgb(29, 77, 167);
/* oklch */ color: oklch(44.4% 0.154 261.5);

Tailwind

colors: {
  custom: {
    50: '#717ec2',
    500: '#1d4da7',
    950: '#000000',
  },
}

SCSS

$custom: #1d4da7;
$custom-light: #717ec2;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4da7",
  "rgb": {
    "r": 29,
    "g": 77,
    "b": 167
  },
  "hsl": {
    "h": 219.13,
    "s": 70.408,
    "l": 38.431
  },
  "oklch": {
    "l": 0.44353,
    "c": 0.15431,
    "h": 261.5
  },
  "luminance": 0.08359
}

Semantic roles & 50–950 ramp

primary

#1D4DA7

secondary

#C7A159

accent

#AF3BED

background

#F7F7FC

surface

#EDEEF8

border

#C8C9D1

text

#090912

muted

#7B7B81

Preview Lab

Preview with #1D4DA7

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

Preview Lab → · Contrast checker → · Palette generator →