#1D2159#1D2159

#1D2159 is a dark, moderate blue. Relative luminance 0.021; OKLCH L 28.2% C 0.099 H 275.0°. Best body text is #FFFFFF at 14.85:1 contrast (WCAG AA passes).

Color values

HEX	#1D2159
RGB	rgb(29, 33, 89)
HSL	hsl(236, 51%, 23%)
HSV	hsv(236, 67%, 35%)
CMYK	cmyk(67.4%, 62.9%, 0%, 65.1%)
CIE-LAB	lab(15.85, 18.11, -34.40)
CIE-LCH	lch(15.85, 38.88, 297.76°)
OKLab	oklab(28.18% 0.0086 -0.0989)
OKLCH	oklch(28.18% 0.099 275)
XYZ	xyz(2.8531, 2.0700, 9.6984)
Luminance	0.0207 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2159 #59551D

analogous

#1D3F59 #1D2159 #371D59

triadic

#1D2159 #591D21 #21591D

tetradic

#1D2159 #591D3F #59551D #1D5937

square

#1D2159 #591D3F #59551D #1D5937

split-complementary

#1D2159 #59371D #3F591D

monochromatic

#080917 #0E102B #1D2159 #2C3287 #3B43B5

Accessibility & contrast

On white

14.85

#1D2159 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#1D2159 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2159

14.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2159	#FFFFFF	#000000	##FFFFFF
##1D2159	1.00	14.85	1.41	14.85
#FFFFFF	14.85	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A5B

Deuteranopia (green-blind)

#002558

Tritanopia (blue-blind)

#002F39

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #1d2159;
/* rgb */ color: rgb(29, 33, 89);
/* oklch */ color: oklch(28.2% 0.099 275.0);

Tailwind

colors: {
  custom: {
    50: '#615c88',
    500: '#1d2159',
    950: '#000000',
  },
}

SCSS

$custom: #1d2159;
$custom-light: #615c88;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2159",
  "rgb": {
    "r": 29,
    "g": 33,
    "b": 89
  },
  "hsl": {
    "h": 236,
    "s": 50.847,
    "l": 23.137
  },
  "oklch": {
    "l": 0.28177,
    "c": 0.0993,
    "h": 275
  },
  "luminance": 0.0207
}

Semantic roles & 50–950 ramp

primary

#1D2159

secondary

#8E8944

accent

#D14DDA

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05040B

muted

#7A797C

Preview Lab

Preview with #1D2159

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

Preview Lab → · Contrast checker → · Palette generator →