#1D176A#1D176A

#1D176A is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.1% C 0.137 H 276.2°. Best body text is #FFFFFF at 15.18:1 contrast (WCAG AA passes).

Color values

HEX	#1D176A
RGB	rgb(29, 23, 106)
HSL	hsl(244, 64%, 25%)
HSV	hsv(244, 78%, 42%)
CMYK	cmyk(72.6%, 78.3%, 0%, 58.4%)
CIE-LAB	lab(15.03, 31.22, -47.02)
CIE-LCH	lch(15.03, 56.43, 303.58°)
OKLab	oklab(28.1% 0.0147 -0.1359)
OKLCH	oklch(28.1% 0.137 276.2)
XYZ	xyz(3.4138, 1.9143, 13.8225)
Luminance	0.0192 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D176A #646A17

analogous

#173B6A #1D176A #46176A

triadic

#1D176A #6A1D17 #176A1D

tetradic

#1D176A #6A173B #646A17 #176A46

square

#1D176A #6A173B #646A17 #176A46

split-complementary

#1D176A #6A4617 #3B6A17

monochromatic

#070519 #0F0C38 #1D176A #2B229C #392DCF

Accessibility & contrast

On white

15.18

#1D176A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#1D176A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D176A

15.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D176A	#FFFFFF	#000000	##FFFFFF
##1D176A	1.00	15.18	1.38	15.18
#FFFFFF	15.18	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00296C

Deuteranopia (green-blind)

#002269

Tritanopia (blue-blind)

#002F3F

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #1d176a;
/* rgb */ color: rgb(29, 23, 106);
/* oklch */ color: oklch(28.1% 0.137 276.2);

Tailwind

colors: {
  custom: {
    50: '#665596',
    500: '#1d176a',
    950: '#000000',
  },
}

SCSS

$custom: #1d176a;
$custom-light: #665596;
$custom-dark: #000000;

JSON

{
  "hex": "#1d176a",
  "rgb": {
    "r": 29,
    "g": 23,
    "b": 106
  },
  "hsl": {
    "h": 244.337,
    "s": 64.341,
    "l": 25.294
  },
  "oklch": {
    "l": 0.28099,
    "c": 0.13668,
    "h": 276.2
  },
  "luminance": 0.01915
}

Semantic roles & 50–950 ramp

primary

#1D176A

secondary

#99A03D

accent

#E740DB

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030D

muted

#7A787E

Preview Lab

Preview with #1D176A

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

Preview Lab → · Contrast checker → · Palette generator →