#1D174F#1D174F

#1D174F is a dark, moderate blue. Relative luminance 0.014; OKLCH L 25.2% C 0.098 H 281.5°. Best body text is #FFFFFF at 16.31:1 contrast (WCAG AA passes).

Color values

HEX	#1D174F
RGB	rgb(29, 23, 79)
HSL	hsl(246, 55%, 20%)
HSV	hsv(246, 71%, 31%)
CMYK	cmyk(63.3%, 70.9%, 0%, 69%)
CIE-LAB	lab(12.21, 21.41, -33.55)
CIE-LCH	lch(12.21, 39.80, 302.54°)
OKLab	oklab(25.22% 0.0197 -0.0965)
OKLCH	oklch(25.22% 0.098 281.5)
XYZ	xyz(2.2239, 1.4384, 7.5561)
Luminance	0.0144 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

#020035

ΔE00 6.37

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D174F #494F17

analogous

#172D4F #1D174F #39174F

triadic

#1D174F #4F1D17 #174F1D

tetradic

#1D174F #4F172D #494F17 #174F39

square

#1D174F #4F172D #494F17 #174F39

split-complementary

#1D174F #4F3917 #2D4F17

monochromatic

#090718 #0C0920 #1D174F #2E257E #4033AE

Accessibility & contrast

On white

16.31

#1D174F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#1D174F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D174F

16.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D174F	#FFFFFF	#000000	##FFFFFF
##1D174F	1.00	16.31	1.29	16.31
#FFFFFF	16.31	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002251

Deuteranopia (green-blind)

#001E4E

Tritanopia (blue-blind)

#032530

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #1d174f;
/* rgb */ color: rgb(29, 23, 79);
/* oklch */ color: oklch(25.2% 0.098 281.5);

Tailwind

colors: {
  custom: {
    50: '#5f5481',
    500: '#1d174f',
    950: '#000000',
  },
}

SCSS

$custom: #1d174f;
$custom-light: #5f5481;
$custom-dark: #000000;

JSON

{
  "hex": "#1d174f",
  "rgb": {
    "r": 29,
    "g": 23,
    "b": 79
  },
  "hsl": {
    "h": 246.429,
    "s": 54.902,
    "l": 20
  },
  "oklch": {
    "l": 0.2522,
    "c": 0.09848,
    "h": 281.5
  },
  "luminance": 0.01439
}

Semantic roles & 50–950 ramp

primary

#1D174F

secondary

#7E863C

accent

#DE4ACE

background

#F5F4F7

surface

#EAE7EE

border

#C6C3C9

text

#05020A

muted

#79787C

Preview Lab

Preview with #1D174F

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

Preview Lab → · Contrast checker → · Palette generator →