#1D174E#1D174E

#1D174E is a dark, moderate blue. Relative luminance 0.014; OKLCH L 25.1% C 0.097 H 281.8°. Best body text is #FFFFFF at 16.34:1 contrast (WCAG AA passes).

Color values

HEX	#1D174E
RGB	rgb(29, 23, 78)
HSL	hsl(247, 54%, 20%)
HSV	hsv(247, 71%, 31%)
CMYK	cmyk(62.8%, 70.5%, 0%, 69.4%)
CIE-LAB	lab(12.12, 21.04, -33.02)
CIE-LCH	lch(12.12, 39.15, 302.51°)
OKLab	oklab(25.12% 0.0198 -0.0949)
OKLCH	oklch(25.12% 0.097 281.8)
XYZ	xyz(2.1878, 1.4239, 7.3658)
Luminance	0.0142 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D174E #484E17

analogous

#172D4E #1D174E #38174E

triadic

#1D174E #4E1D17 #174E1D

tetradic

#1D174E #4E172D #484E17 #174E38

square

#1D174E #4E172D #484E17 #174E38

split-complementary

#1D174E #4E3817 #2D4E17

monochromatic

#090718 #0B091F #1D174E #2F257D #4033AD

Accessibility & contrast

On white

16.34

#1D174E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#1D174E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D174E

16.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D174E	#FFFFFF	#000000	##FFFFFF
##1D174E	1.00	16.34	1.28	16.34
#FFFFFF	16.34	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002250

Deuteranopia (green-blind)

#001E4D

Tritanopia (blue-blind)

#042530

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #1d174e;
/* rgb */ color: rgb(29, 23, 78);
/* oklch */ color: oklch(25.1% 0.097 281.8);

Tailwind

colors: {
  custom: {
    50: '#5f5480',
    500: '#1d174e',
    950: '#000000',
  },
}

SCSS

$custom: #1d174e;
$custom-light: #5f5480;
$custom-dark: #000000;

JSON

{
  "hex": "#1d174e",
  "rgb": {
    "r": 29,
    "g": 23,
    "b": 78
  },
  "hsl": {
    "h": 246.545,
    "s": 54.455,
    "l": 19.804
  },
  "oklch": {
    "l": 0.25122,
    "c": 0.09696,
    "h": 281.8
  },
  "luminance": 0.01424
}

Semantic roles & 50–950 ramp

primary

#1D174E

secondary

#7D853C

accent

#DE4ACE

background

#F5F4F7

surface

#EAE7EE

border

#C6C3C9

text

#05020A

muted

#79787C

Preview Lab

Preview with #1D174E

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

Preview Lab → · Contrast checker → · Palette generator →