#1D2B7F#1D2B7F

#1D2B7F is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.8% C 0.142 H 269.6°. Best body text is #FFFFFF at 12.32:1 contrast (WCAG AA passes).

Color values

HEX	#1D2B7F
RGB	rgb(29, 43, 127)
HSL	hsl(231, 63%, 31%)
HSV	hsv(231, 77%, 50%)
CMYK	cmyk(77.2%, 66.1%, 0%, 50.2%)
CIE-LAB	lab(22.02, 25.94, -49.04)
CIE-LCH	lch(22.02, 55.48, 297.87°)
OKLab	oklab(33.8% -0.001 -0.1418)
OKLCH	oklch(33.8% 0.142 269.6)
XYZ	xyz(5.2000, 3.5207, 20.4801)
Luminance	0.0352 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2B7F #7F711D

analogous

#1D5C7F #1D2B7F #401D7F

triadic

#1D2B7F #7F1D2B #2B7F1D

tetradic

#1D2B7F #7F1D5C #7F711D #1D7F40

square

#1D2B7F #7F1D5C #7F711D #1D7F40

split-complementary

#1D2B7F #7F401D #5C7F1D

monochromatic

#06091B #121A4D #1D2B7F #283CB1 #4257D4

Accessibility & contrast

On white

12.32

#1D2B7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#1D2B7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2B7F

12.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2B7F	#FFFFFF	#000000	##FFFFFF
##1D2B7F	1.00	12.32	1.70	12.32
#FFFFFF	12.32	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003982

Deuteranopia (green-blind)

#00307D

Tritanopia (blue-blind)

#004151

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1d2b7f;
/* rgb */ color: rgb(29, 43, 127);
/* oklch */ color: oklch(33.8% 0.142 269.6);

Tailwind

colors: {
  custom: {
    50: '#6964a5',
    500: '#1d2b7f',
    950: '#000000',
  },
}

SCSS

$custom: #1d2b7f;
$custom-light: #6964a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2b7f",
  "rgb": {
    "r": 29,
    "g": 43,
    "b": 127
  },
  "hsl": {
    "h": 231.429,
    "s": 62.821,
    "l": 30.588
  },
  "oklch": {
    "l": 0.33801,
    "c": 0.14179,
    "h": 269.6
  },
  "luminance": 0.03521
}

Semantic roles & 50–950 ramp

primary

#1D2B7F

secondary

#B2A345

accent

#CE42E6

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #1D2B7F

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

Preview Lab → · Contrast checker → · Palette generator →