#1D176F#1D176F

#1D176F is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.7% C 0.143 H 275.4°. Best body text is #FFFFFF at 14.95:1 contrast (WCAG AA passes).

Color values

HEX	#1D176F
RGB	rgb(29, 23, 111)
HSL	hsl(244, 66%, 26%)
HSV	hsv(244, 79%, 44%)
CMYK	cmyk(73.9%, 79.3%, 0%, 56.5%)
CIE-LAB	lab(15.60, 32.97, -49.34)
CIE-LCH	lch(15.60, 59.34, 303.75°)
OKLab	oklab(28.67% 0.0136 -0.1427)
OKLCH	oklch(28.67% 0.143 275.4)
XYZ	xyz(3.6814, 2.0214, 15.2320)
Luminance	0.0202 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D176F #696F17

analogous

#173D6F #1D176F #49176F

triadic

#1D176F #6F1D17 #176F1D

tetradic

#1D176F #6F173D #696F17 #176F49

square

#1D176F #6F173D #696F17 #176F49

split-complementary

#1D176F #6F4917 #3D6F17

monochromatic

#070519 #100C3C #1D176F #2A22A2 #382DD3

Accessibility & contrast

On white

14.95

#1D176F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#1D176F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D176F

14.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D176F	#FFFFFF	#000000	##FFFFFF
##1D176F	1.00	14.95	1.40	14.95
#FFFFFF	14.95	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	14.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B72

Deuteranopia (green-blind)

#00236D

Tritanopia (blue-blind)

#003142

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #1d176f;
/* rgb */ color: rgb(29, 23, 111);
/* oklch */ color: oklch(28.7% 0.143 275.4);

Tailwind

colors: {
  custom: {
    50: '#675699',
    500: '#1d176f',
    950: '#000000',
  },
}

SCSS

$custom: #1d176f;
$custom-light: #675699;
$custom-dark: #000000;

JSON

{
  "hex": "#1d176f",
  "rgb": {
    "r": 29,
    "g": 23,
    "b": 111
  },
  "hsl": {
    "h": 244.091,
    "s": 65.672,
    "l": 26.275
  },
  "oklch": {
    "l": 0.28669,
    "c": 0.1433,
    "h": 275.4
  },
  "luminance": 0.02022
}

Semantic roles & 50–950 ramp

primary

#1D176F

secondary

#9EA53D

accent

#E93FDD

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1D176F

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

Preview Lab → · Contrast checker → · Palette generator →