#1D1F9D#1D1F9D

#1D1F9D is a dark, vivid blue. Relative luminance 0.037; OKLCH L 35.1% C 0.193 H 270.1°. Best body text is #FFFFFF at 12.10:1 contrast (WCAG AA passes).

Color values

HEX	#1D1F9D
RGB	rgb(29, 31, 157)
HSL	hsl(239, 69%, 36%)
HSV	hsv(239, 82%, 62%)
CMYK	cmyk(81.5%, 80.3%, 0%, 38.4%)
CIE-LAB	lab(22.57, 44.15, -66.79)
CIE-LCH	lch(22.57, 80.07, 303.47°)
OKLab	oklab(35.15% 0.0004 -0.1934)
OKLCH	oklch(35.15% 0.193 270.1)
XYZ	xyz(7.0804, 3.6747, 32.2279)
Luminance	0.0368 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D1F9D #9D9B1D

analogous

#1D5F9D #1D1F9D #5B1D9D

triadic

#1D1F9D #9D1D1F #1F9D1D

tetradic

#1D1F9D #9D1D5F #9D9B1D #1D9D5B

square

#1D1F9D #9D1D5F #9D9B1D #1D9D5B

split-complementary

#1D1F9D #9D5B1D #5F9D1D

monochromatic

#0A0B36 #131569 #1D1F9D #2729D1 #5557E0

Accessibility & contrast

On white

12.10

#1D1F9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#1D1F9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D1F9D

12.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D1F9D	#FFFFFF	#000000	##FFFFFF
##1D1F9D	1.00	12.10	1.74	12.10
#FFFFFF	12.10	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003CA1

Deuteranopia (green-blind)

#002F9B

Tritanopia (blue-blind)

#00465E

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1d1f9d;
/* rgb */ color: rgb(29, 31, 157);
/* oklch */ color: oklch(35.1% 0.193 270.1);

Tailwind

colors: {
  custom: {
    50: '#735dbb',
    500: '#1d1f9d',
    950: '#000000',
  },
}

SCSS

$custom: #1d1f9d;
$custom-light: #735dbb;
$custom-dark: #000000;

JSON

{
  "hex": "#1d1f9d",
  "rgb": {
    "r": 29,
    "g": 31,
    "b": 157
  },
  "hsl": {
    "h": 239.063,
    "s": 68.817,
    "l": 36.471
  },
  "oklch": {
    "l": 0.35147,
    "c": 0.19343,
    "h": 270.1
  },
  "luminance": 0.03676
}

Semantic roles & 50–950 ramp

primary

#1D1F9D

secondary

#C3C153

accent

#E93CEC

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #1D1F9D

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

Preview Lab → · Contrast checker → · Palette generator →