#1D1DB3#1D1DB3

#1D1DB3 is a dark, highly saturated blue. Relative luminance 0.044; OKLCH L 37.6% C 0.221 H 269.0°. Best body text is #FFFFFF at 11.18:1 contrast (WCAG AA passes).

Color values

HEX	#1D1DB3
RGB	rgb(29, 29, 179)
HSL	hsl(240, 72%, 41%)
HSV	hsv(240, 84%, 70%)
CMYK	cmyk(83.8%, 83.8%, 0%, 29.8%)
CIE-LAB	lab(24.93, 52.14, -76.17)
CIE-LCH	lch(24.93, 92.31, 304.39°)
OKLab	oklab(37.57% -0.0037 -0.2205)
OKLCH	oklch(37.57% 0.221 269)
XYZ	xyz(9.0800, 4.3935, 43.0086)
Luminance	0.0440 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1DB3 #B3B31D

analogous

#1D68B3 #1D1DB3 #681DB3

triadic

#1D1DB3 #B31D1D #1DB31D

tetradic

#1D1DB3 #B31D68 #B3B31D #1DB368

square

#1D1DB3 #B31D68 #B3B31D #1DB368

split-complementary

#1D1DB3 #B3681D #68B31D

monochromatic

#0C0C4A #14147E #1D1DB3 #3030DD #6464E6

Accessibility & contrast

On white

11.18

#1D1DB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#1D1DB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1DB3

11.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1DB3	#FFFFFF	#000000	##FFFFFF
##1D1DB3	1.00	11.18	1.88	11.18
#FFFFFF	11.18	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0043B7

Deuteranopia (green-blind)

#0033B1

Tritanopia (blue-blind)

#004E6A

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #1d1db3;
/* rgb */ color: rgb(29, 29, 179);
/* oklch */ color: oklch(37.6% 0.221 269.0);

Tailwind

colors: {
  custom: {
    50: '#795ecb',
    500: '#1d1db3',
    950: '#000000',
  },
}

SCSS

$custom: #1d1db3;
$custom-light: #795ecb;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1db3",
  "rgb": {
    "r": 29,
    "g": 29,
    "b": 179
  },
  "hsl": {
    "h": 240,
    "s": 72.115,
    "l": 40.784
  },
  "oklch": {
    "l": 0.37567,
    "c": 0.22055,
    "h": 269
  },
  "luminance": 0.04395
}

Semantic roles & 50–950 ramp

primary

#1D1DB3

secondary

#CBCB61

accent

#EF39EF

background

#F8F5FC

surface

#EFE9F9

border

#CAC5D2

text

#0B0514

muted

#7C7982

Preview Lab

Preview with #1D1DB3

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

Preview Lab → · Contrast checker → · Palette generator →