#1D2478#1D2478

#1D2478 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 31.8% C 0.141 H 271.7°. Best body text is #FFFFFF at 13.33:1 contrast (WCAG AA passes).

Color values

HEX	#1D2478
RGB	rgb(29, 36, 120)
HSL	hsl(235, 61%, 29%)
HSV	hsv(235, 76%, 47%)
CMYK	cmyk(75.8%, 70%, 0%, 52.9%)
CIE-LAB	lab(19.55, 28.00, -48.64)
CIE-LCH	lch(19.55, 56.12, 299.93°)
OKLab	oklab(31.79% 0.0042 -0.1406)
OKLCH	oklch(31.79% 0.141 271.7)
XYZ	xyz(4.5266, 2.8786, 18.0827)
Luminance	0.0288 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2478 #78711D

analogous

#1D5278 #1D2478 #441D78

triadic

#1D2478 #781D24 #24781D

tetradic

#1D2478 #781D52 #78711D #1D7844

square

#1D2478 #781D52 #78711D #1D7844

split-complementary

#1D2478 #78441D #52781D

monochromatic

#060719 #111547 #1D2478 #2933A9 #3F4AD1

Accessibility & contrast

On white

13.33

#1D2478 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#1D2478 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2478

13.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2478	#FFFFFF	#000000	##FFFFFF
##1D2478	1.00	13.33	1.58	13.33
#FFFFFF	13.33	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00347B

Deuteranopia (green-blind)

#002B76

Tritanopia (blue-blind)

#003B4A

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #1d2478;
/* rgb */ color: rgb(29, 36, 120);
/* oklch */ color: oklch(31.8% 0.141 271.7);

Tailwind

colors: {
  custom: {
    50: '#685fa0',
    500: '#1d2478',
    950: '#000000',
  },
}

SCSS

$custom: #1d2478;
$custom-light: #685fa0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2478",
  "rgb": {
    "r": 29,
    "g": 36,
    "b": 120
  },
  "hsl": {
    "h": 235.385,
    "s": 61.074,
    "l": 29.216
  },
  "oklch": {
    "l": 0.31789,
    "c": 0.14071,
    "h": 271.7
  },
  "luminance": 0.02879
}

Semantic roles & 50–950 ramp

primary

#1D2478

secondary

#ACA445

accent

#D844E4

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07040F

muted

#7A797E

Preview Lab

Preview with #1D2478

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

Preview Lab → · Contrast checker → · Palette generator →