#1D2F9A#1D2F9A

#1D2F9A is a dark, vivid blue. Relative luminance 0.046; OKLCH L 37.2% C 0.173 H 268.3°. Best body text is #FFFFFF at 10.91:1 contrast (WCAG AA passes).

Color values

HEX	#1D2F9A
RGB	rgb(29, 47, 154)
HSL	hsl(231, 68%, 36%)
HSV	hsv(231, 81%, 60%)
CMYK	cmyk(81.2%, 69.5%, 0%, 39.6%)
CIE-LAB	lab(25.64, 33.56, -59.87)
CIE-LCH	lch(25.64, 68.64, 299.27°)
OKLab	oklab(37.25% -0.0051 -0.1734)
OKLCH	oklch(37.25% 0.173 268.3)
XYZ	xyz(7.3539, 4.6265, 31.0710)
Luminance	0.0463 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2F9A #9A881D

analogous

#1D6D9A #1D2F9A #491D9A

triadic

#1D2F9A #9A1D2F #2F9A1D

tetradic

#1D2F9A #9A1D6D #9A881D #1D9A49

square

#1D2F9A #9A1D6D #9A881D #1D9A49

split-complementary

#1D2F9A #9A491D #6D9A1D

monochromatic

#0A1033 #131F66 #1D2F9A #273FCE #5367DF

Accessibility & contrast

On white

10.91

#1D2F9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#1D2F9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2F9A

10.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2F9A	#FFFFFF	#000000	##FFFFFF
##1D2F9A	1.00	10.91	1.93	10.91
#FFFFFF	10.91	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00439D

Deuteranopia (green-blind)

#003798

Tritanopia (blue-blind)

#004C60

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1d2f9a;
/* rgb */ color: rgb(29, 47, 154);
/* oklch */ color: oklch(37.2% 0.173 268.3);

Tailwind

colors: {
  custom: {
    50: '#7067b9',
    500: '#1d2f9a',
    950: '#000000',
  },
}

SCSS

$custom: #1d2f9a;
$custom-light: #7067b9;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2f9a",
  "rgb": {
    "r": 29,
    "g": 47,
    "b": 154
  },
  "hsl": {
    "h": 231.36,
    "s": 68.306,
    "l": 35.882
  },
  "oklch": {
    "l": 0.37247,
    "c": 0.17349,
    "h": 268.3
  },
  "luminance": 0.04627
}

Semantic roles & 50–950 ramp

primary

#1D2F9A

secondary

#C2B151

accent

#D23DEB

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090612

muted

#7B7A81

Preview Lab

Preview with #1D2F9A

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

Preview Lab → · Contrast checker → · Palette generator →