#1D4A9A#1D4A9A

#1D4A9A is a dark, vivid blue. Relative luminance 0.075; OKLCH L 42.7% C 0.140 H 260.9°. Best body text is #FFFFFF at 8.41:1 contrast (WCAG AA passes).

Color values

HEX	#1D4A9A
RGB	rgb(29, 74, 154)
HSL	hsl(218, 68%, 36%)
HSV	hsv(218, 81%, 60%)
CMYK	cmyk(81.2%, 51.9%, 0%, 39.6%)
CIE-LAB	lab(32.90, 15.30, -48.03)
CIE-LCH	lch(32.90, 50.41, 287.67°)
OKLab	oklab(42.66% -0.0221 -0.1383)
OKLCH	oklch(42.66% 0.14 260.9)
XYZ	xyz(8.7861, 7.4908, 31.5484)
Luminance	0.0749 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4A9A #9A6D1D

analogous

#1D889A #1D4A9A #2E1D9A

triadic

#1D4A9A #9A1D4A #4A9A1D

tetradic

#1D4A9A #9A1D88 #9A6D1D #1D9A2E

square

#1D4A9A #9A1D88 #9A6D1D #1D9A2E

split-complementary

#1D4A9A #9A2E1D #889A1D

monochromatic

#0A1933 #133166 #1D4A9A #2763CE #5385DF

Accessibility & contrast

On white

8.41

#1D4A9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#1D4A9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4A9A

8.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4A9A	#FFFFFF	#000000	##FFFFFF
##1D4A9A	1.00	8.41	2.50	8.41
#FFFFFF	8.41	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#15539D

Deuteranopia (green-blind)

#004898

Tritanopia (blue-blind)

#005D6B

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1d4a9a;
/* rgb */ color: rgb(29, 74, 154);
/* oklch */ color: oklch(42.7% 0.140 260.9);

Tailwind

colors: {
  custom: {
    50: '#6e7bb8',
    500: '#1d4a9a',
    950: '#000000',
  },
}

SCSS

$custom: #1d4a9a;
$custom-light: #6e7bb8;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4a9a",
  "rgb": {
    "r": 29,
    "g": 74,
    "b": 154
  },
  "hsl": {
    "h": 218.4,
    "s": 68.306,
    "l": 35.882
  },
  "oklch": {
    "l": 0.42664,
    "c": 0.14009,
    "h": 260.9
  },
  "luminance": 0.07492
}

Semantic roles & 50–950 ramp

primary

#1D4A9A

secondary

#C29951

accent

#AC3DEB

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1D4A9A

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

Preview Lab → · Contrast checker → · Palette generator →