#1D4C8E#1D4C8E

#1D4C8E is a dark, vivid blue. Relative luminance 0.074; OKLCH L 42.2% C 0.121 H 257.7°. Best body text is #FFFFFF at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#1D4C8E
RGB	rgb(29, 76, 142)
HSL	hsl(215, 66%, 34%)
HSV	hsv(215, 80%, 56%)
CMYK	cmyk(79.6%, 46.5%, 0%, 44.3%)
CIE-LAB	lab(32.66, 9.12, -41.11)
CIE-LCH	lch(32.66, 42.11, 282.50°)
OKLab	oklab(42.22% -0.0257 -0.1179)
OKLCH	oklch(42.22% 0.121 257.7)
XYZ	xyz(7.9718, 7.3822, 26.5907)
Luminance	0.0738 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4C8E #8E5F1D

analogous

#1D848E #1D4C8E #261D8E

triadic

#1D4C8E #8E1D4C #4C8E1D

tetradic

#1D4C8E #8E1D84 #8E5F1D #1D8E26

square

#1D4C8E #8E1D84 #8E5F1D #1D8E26

split-complementary

#1D4C8E #8E261D #848E1D

monochromatic

#081628 #13315B #1D4C8E #2767C1 #4B87DA

Accessibility & contrast

On white

8.48

#1D4C8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#1D4C8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4C8E

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4C8E	#FFFFFF	#000000	##FFFFFF
##1D4C8E	1.00	8.48	2.48	8.48
#FFFFFF	8.48	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#295291

Deuteranopia (green-blind)

#10488D

Tritanopia (blue-blind)

#005C66

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #1d4c8e;
/* rgb */ color: rgb(29, 76, 142);
/* oklch */ color: oklch(42.2% 0.121 257.7);

Tailwind

colors: {
  custom: {
    50: '#6b7daf',
    500: '#1d4c8e',
    950: '#000000',
  },
}

SCSS

$custom: #1d4c8e;
$custom-light: #6b7daf;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4c8e",
  "rgb": {
    "r": 29,
    "g": 76,
    "b": 142
  },
  "hsl": {
    "h": 215.044,
    "s": 66.082,
    "l": 33.529
  },
  "oklch": {
    "l": 0.42216,
    "c": 0.12069,
    "h": 257.7
  },
  "luminance": 0.07383
}

Semantic roles & 50–950 ramp

primary

#1D4C8E

secondary

#BD8D4A

accent

#A23FE9

background

#F6F7FA

surface

#ECEEF5

border

#C7C9CF

text

#080910

muted

#7A7B7F

Preview Lab

Preview with #1D4C8E

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

Preview Lab → · Contrast checker → · Palette generator →