#1D176C#1D176C

#1D176C is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.3% C 0.139 H 275.9°. Best body text is #FFFFFF at 15.09:1 contrast (WCAG AA passes).

Color values

HEX	#1D176C
RGB	rgb(29, 23, 108)
HSL	hsl(244, 65%, 26%)
HSV	hsv(244, 79%, 42%)
CMYK	cmyk(73.1%, 78.7%, 0%, 57.6%)
CIE-LAB	lab(15.26, 31.92, -47.95)
CIE-LCH	lch(15.26, 57.60, 303.65°)
OKLab	oklab(28.33% 0.0143 -0.1386)
OKLCH	oklch(28.33% 0.139 275.9)
XYZ	xyz(3.5190, 1.9564, 14.3766)
Luminance	0.0196 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D176C #666C17

analogous

#173B6C #1D176C #47176C

triadic

#1D176C #6C1D17 #176C1D

tetradic

#1D176C #6C173B #666C17 #176C47

square

#1D176C #6C173B #666C17 #176C47

split-complementary

#1D176C #6C4717 #3B6C17

monochromatic

#070519 #0F0C3A #1D176C #2B229E #382CD1

Accessibility & contrast

On white

15.09

#1D176C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#1D176C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D176C

15.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D176C	#FFFFFF	#000000	##FFFFFF
##1D176C	1.00	15.09	1.39	15.09
#FFFFFF	15.09	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A6E

Deuteranopia (green-blind)

#00226A

Tritanopia (blue-blind)

#003040

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #1d176c;
/* rgb */ color: rgb(29, 23, 108);
/* oklch */ color: oklch(28.3% 0.139 275.9);

Tailwind

colors: {
  custom: {
    50: '#675597',
    500: '#1d176c',
    950: '#000000',
  },
}

SCSS

$custom: #1d176c;
$custom-light: #675597;
$custom-dark: #000000;

JSON

{
  "hex": "#1d176c",
  "rgb": {
    "r": 29,
    "g": 23,
    "b": 108
  },
  "hsl": {
    "h": 244.235,
    "s": 64.885,
    "l": 25.686
  },
  "oklch": {
    "l": 0.28326,
    "c": 0.13934,
    "h": 275.9
  },
  "luminance": 0.01957
}

Semantic roles & 50–950 ramp

primary

#1D176C

secondary

#9BA23D

accent

#E840DC

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1D176C

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

Preview Lab → · Contrast checker → · Palette generator →