#1D176E#1D176E

#1D176E is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.6% C 0.142 H 275.6°. Best body text is #FFFFFF at 15.00:1 contrast (WCAG AA passes).

Color values

HEX	#1D176E
RGB	rgb(29, 23, 110)
HSL	hsl(244, 65%, 26%)
HSV	hsv(244, 79%, 43%)
CMYK	cmyk(73.6%, 79.1%, 0%, 56.9%)
CIE-LAB	lab(15.48, 32.62, -48.88)
CIE-LCH	lch(15.48, 58.76, 303.72°)
OKLab	oklab(28.55% 0.0138 -0.1413)
OKLCH	oklch(28.55% 0.142 275.6)
XYZ	xyz(3.6266, 1.9995, 14.9436)
Luminance	0.0200 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D176E #686E17

analogous

#173C6E #1D176E #48176E

triadic

#1D176E #6E1D17 #176E1D

tetradic

#1D176E #6E173C #686E17 #176E48

square

#1D176E #6E173C #686E17 #176E48

split-complementary

#1D176E #6E4817 #3C6E17

monochromatic

#070519 #100C3B #1D176E #2A22A1 #382CD3

Accessibility & contrast

On white

15.00

#1D176E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#1D176E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D176E

15.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D176E	#FFFFFF	#000000	##FFFFFF
##1D176E	1.00	15.00	1.40	15.00
#FFFFFF	15.00	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	15.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A70

Deuteranopia (green-blind)

#00236C

Tritanopia (blue-blind)

#003041

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #1d176e;
/* rgb */ color: rgb(29, 23, 110);
/* oklch */ color: oklch(28.6% 0.142 275.6);

Tailwind

colors: {
  custom: {
    50: '#675699',
    500: '#1d176e',
    950: '#000000',
  },
}

SCSS

$custom: #1d176e;
$custom-light: #675699;
$custom-dark: #000000;

JSON

{
  "hex": "#1d176e",
  "rgb": {
    "r": 29,
    "g": 23,
    "b": 110
  },
  "hsl": {
    "h": 244.138,
    "s": 65.414,
    "l": 26.078
  },
  "oklch": {
    "l": 0.28554,
    "c": 0.14199,
    "h": 275.6
  },
  "luminance": 0.02
}

Semantic roles & 50–950 ramp

primary

#1D176E

secondary

#9DA43D

accent

#E83FDD

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1D176E

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

Preview Lab → · Contrast checker → · Palette generator →