#1D1971#1D1971

#1D1971 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 29.2% C 0.144 H 274.8°. Best body text is #FFFFFF at 14.69:1 contrast (WCAG AA passes).

Color values

HEX	#1D1971
RGB	rgb(29, 25, 113)
HSL	hsl(243, 64%, 27%)
HSV	hsv(243, 78%, 44%)
CMYK	cmyk(74.3%, 77.9%, 0%, 55.7%)
CIE-LAB	lab(16.25, 32.48, -49.57)
CIE-LCH	lch(16.25, 59.26, 303.23°)
OKLab	oklab(29.2% 0.012 -0.1433)
OKLCH	oklch(29.2% 0.144 274.8)
XYZ	xyz(3.8340, 2.1484, 15.8322)
Luminance	0.0215 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1971 #6D7119

analogous

#194171 #1D1971 #491971

triadic

#1D1971 #711D19 #19711D

tetradic

#1D1971 #711941 #6D7119 #197149

square

#1D1971 #711941 #6D7119 #197149

split-complementary

#1D1971 #714919 #417119

monochromatic

#060619 #100E3F #1D1971 #2A24A3 #3A33D2

Accessibility & contrast

On white

14.69

#1D1971 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#1D1971 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1971

14.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1971	#FFFFFF	#000000	##FFFFFF
##1D1971	1.00	14.69	1.43	14.69
#FFFFFF	14.69	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C74

Deuteranopia (green-blind)

#00246F

Tritanopia (blue-blind)

#003243

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #1d1971;
/* rgb */ color: rgb(29, 25, 113);
/* oklch */ color: oklch(29.2% 0.144 274.8);

Tailwind

colors: {
  custom: {
    50: '#68579b',
    500: '#1d1971',
    950: '#000000',
  },
}

SCSS

$custom: #1d1971;
$custom-light: #68579b;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1971",
  "rgb": {
    "r": 29,
    "g": 25,
    "b": 113
  },
  "hsl": {
    "h": 242.727,
    "s": 63.768,
    "l": 27.059
  },
  "oklch": {
    "l": 0.29195,
    "c": 0.14385,
    "h": 274.8
  },
  "luminance": 0.02149
}

Semantic roles & 50–950 ramp

primary

#1D1971

secondary

#A2A640

accent

#E741DF

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #1D1971

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

Preview Lab → · Contrast checker → · Palette generator →