#1D1D9F#1D1D9F

#1D1D9F is a dark, vivid blue. Relative luminance 0.036; OKLCH L 35.1% C 0.197 H 270.1°. Best body text is #FFFFFF at 12.15:1 contrast (WCAG AA passes).

Color values

HEX	#1D1D9F
RGB	rgb(29, 29, 159)
HSL	hsl(240, 69%, 37%)
HSV	hsv(240, 82%, 62%)
CMYK	cmyk(81.8%, 81.8%, 0%, 37.6%)
CIE-LAB	lab(22.45, 45.84, -68.21)
CIE-LCH	lch(22.45, 82.18, 303.90°)
OKLab	oklab(35.14% 0.0005 -0.1975)
OKLCH	oklch(35.14% 0.197 270.1)
XYZ	xyz(7.2019, 3.6423, 33.1176)
Luminance	0.0364 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1D9F #9F9F1D

analogous

#1D5E9F #1D1D9F #5E1D9F

triadic

#1D1D9F #9F1D1D #1D9F1D

tetradic

#1D1D9F #9F1D5E #9F9F1D #1D9F5E

square

#1D1D9F #9F1D5E #9F9F1D #1D9F5E

split-complementary

#1D1D9F #9F5E1D #5E9F1D

monochromatic

#0A0A37 #14146B #1D1D9F #2626D3 #5656E0

Accessibility & contrast

On white

12.15

#1D1D9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#1D1D9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1D9F

12.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1D9F	#FFFFFF	#000000	##FFFFFF
##1D1D9F	1.00	12.15	1.73	12.15
#FFFFFF	12.15	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003CA3

Deuteranopia (green-blind)

#002F9D

Tritanopia (blue-blind)

#00465F

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1d1d9f;
/* rgb */ color: rgb(29, 29, 159);
/* oklch */ color: oklch(35.1% 0.197 270.1);

Tailwind

colors: {
  custom: {
    50: '#735cbd',
    500: '#1d1d9f',
    950: '#000000',
  },
}

SCSS

$custom: #1d1d9f;
$custom-light: #735cbd;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1d9f",
  "rgb": {
    "r": 29,
    "g": 29,
    "b": 159
  },
  "hsl": {
    "h": 240,
    "s": 69.149,
    "l": 36.863
  },
  "oklch": {
    "l": 0.35138,
    "c": 0.19748,
    "h": 270.1
  },
  "luminance": 0.03643
}

Semantic roles & 50–950 ramp

primary

#1D1D9F

secondary

#C4C454

accent

#EC3CEC

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #1D1D9F

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

Preview Lab → · Contrast checker → · Palette generator →