#1D1777#1D1777

#1D1777 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.6% C 0.154 H 274.3°. Best body text is #FFFFFF at 14.57:1 contrast (WCAG AA passes).

Color values

HEX	#1D1777
RGB	rgb(29, 23, 119)
HSL	hsl(244, 68%, 28%)
HSV	hsv(244, 81%, 47%)
CMYK	cmyk(75.6%, 80.7%, 0%, 53.3%)
CIE-LAB	lab(16.53, 35.73, -52.98)
CIE-LCH	lch(16.53, 63.90, 304.00°)
OKLab	oklab(29.6% 0.0116 -0.1532)
OKLCH	oklch(29.6% 0.154 274.3)
XYZ	xyz(4.1418, 2.2055, 17.6566)
Luminance	0.0221 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1777 #717717

analogous

#174177 #1D1777 #4D1777

triadic

#1D1777 #771D17 #17771D

tetradic

#1D1777 #771741 #717717 #17774D

square

#1D1777 #771741 #717717 #17774D

split-complementary

#1D1777 #774D17 #417717

monochromatic

#06051A #110D44 #1D1777 #2921AA #3C31D7

Accessibility & contrast

On white

14.57

#1D1777 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#1D1777 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1777

14.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1777	#FFFFFF	#000000	##FFFFFF
##1D1777	1.00	14.57	1.44	14.57
#FFFFFF	14.57	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D7A

Deuteranopia (green-blind)

#002475

Tritanopia (blue-blind)

#003446

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #1d1777;
/* rgb */ color: rgb(29, 23, 119);
/* oklch */ color: oklch(29.6% 0.154 274.3);

Tailwind

colors: {
  custom: {
    50: '#69569f',
    500: '#1d1777',
    950: '#000000',
  },
}

SCSS

$custom: #1d1777;
$custom-light: #69569f;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1777",
  "rgb": {
    "r": 29,
    "g": 23,
    "b": 119
  },
  "hsl": {
    "h": 243.75,
    "s": 67.606,
    "l": 27.843
  },
  "oklch": {
    "l": 0.296,
    "c": 0.15367,
    "h": 274.3
  },
  "luminance": 0.02206
}

Semantic roles & 50–950 ramp

primary

#1D1777

secondary

#A5AC3E

accent

#EA3DE0

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030F

muted

#7A787E

Preview Lab

Preview with #1D1777

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

Preview Lab → · Contrast checker → · Palette generator →