#1D4BAE#1D4BAE

#1D4BAE is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.5% C 0.166 H 262.8°. Best body text is #FFFFFF at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#1D4BAE
RGB	rgb(29, 75, 174)
HSL	hsl(221, 71%, 40%)
HSV	hsv(221, 83%, 68%)
CMYK	cmyk(83.3%, 56.9%, 0%, 31.8%)
CIE-LAB	lab(34.70, 22.60, -57.11)
CIE-LCH	lch(34.70, 61.42, 291.59°)
OKLab	oklab(44.51% -0.0209 -0.165)
OKLCH	oklch(44.51% 0.166 262.8)
XYZ	xyz(10.6600, 8.3481, 41.0857)
Luminance	0.0835 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4BAE #AE801D

analogous

#1D93AE #1D4BAE #381DAE

triadic

#1D4BAE #AE1D4B #4BAE1D

tetradic

#1D4BAE #AE1D93 #AE801D #1DAE38

square

#1D4BAE #AE1D93 #AE801D #1DAE38

split-complementary

#1D4BAE #AE381D #93AE1D

monochromatic

#0C1E45 #14347A #1D4BAE #2C64DC #618BE5

Accessibility & contrast

On white

7.87

#1D4BAE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#1D4BAE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4BAE

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4BAE	#FFFFFF	#000000	##FFFFFF
##1D4BAE	1.00	7.87	2.67	7.87
#FFFFFF	7.87	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B1

Deuteranopia (green-blind)

#004BAC

Tritanopia (blue-blind)

#006475

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1d4bae;
/* rgb */ color: rgb(29, 75, 174);
/* oklch */ color: oklch(44.5% 0.166 262.8);

Tailwind

colors: {
  custom: {
    50: '#737cc7',
    500: '#1d4bae',
    950: '#000000',
  },
}

SCSS

$custom: #1d4bae;
$custom-light: #737cc7;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4bae",
  "rgb": {
    "r": 29,
    "g": 75,
    "b": 174
  },
  "hsl": {
    "h": 220.966,
    "s": 71.429,
    "l": 39.804
  },
  "oklch": {
    "l": 0.44508,
    "c": 0.16632,
    "h": 262.8
  },
  "luminance": 0.08349
}

Semantic roles & 50–950 ramp

primary

#1D4BAE

secondary

#C9A75E

accent

#B53AEE

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #1D4BAE

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

Preview Lab → · Contrast checker → · Palette generator →