#1D2B8C#1D2B8C

#1D2B8C is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.1% C 0.160 H 269.3°. Best body text is #FFFFFF at 11.82:1 contrast (WCAG AA passes).

Color values

HEX	#1D2B8C
RGB	rgb(29, 43, 140)
HSL	hsl(232, 66%, 33%)
HSV	hsv(232, 79%, 55%)
CMYK	cmyk(79.3%, 69.3%, 0%, 45.1%)
CIE-LAB	lab(23.28, 30.92, -55.13)
CIE-LCH	lch(23.28, 63.21, 299.29°)
OKLab	oklab(35.1% -0.0019 -0.1596)
OKLCH	oklch(35.1% 0.16 269.3)
XYZ	xyz(6.1026, 3.8817, 25.2335)
Luminance	0.0388 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2B8C #8C7E1D

analogous

#1D628C #1D2B8C #461D8C

triadic

#1D2B8C #8C1D2B #2B8C1D

tetradic

#1D2B8C #8C1D62 #8C7E1D #1D8C46

square

#1D2B8C #8C1D62 #8C7E1D #1D8C46

split-complementary

#1D2B8C #8C461D #628C1D

monochromatic

#080C27 #121B59 #1D2B8C #283BBF #4A5CD9

Accessibility & contrast

On white

11.82

#1D2B8C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#1D2B8C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2B8C

11.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2B8C	#FFFFFF	#000000	##FFFFFF
##1D2B8C	1.00	11.82	1.78	11.82
#FFFFFF	11.82	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D8F

Deuteranopia (green-blind)

#00328A

Tritanopia (blue-blind)

#004558

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #1d2b8c;
/* rgb */ color: rgb(29, 43, 140);
/* oklch */ color: oklch(35.1% 0.160 269.3);

Tailwind

colors: {
  custom: {
    50: '#6d64af',
    500: '#1d2b8c',
    950: '#000000',
  },
}

SCSS

$custom: #1d2b8c;
$custom-light: #6d64af;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2b8c",
  "rgb": {
    "r": 29,
    "g": 43,
    "b": 140
  },
  "hsl": {
    "h": 232.432,
    "s": 65.68,
    "l": 33.137
  },
  "oklch": {
    "l": 0.35104,
    "c": 0.1596,
    "h": 269.3
  },
  "luminance": 0.03882
}

Semantic roles & 50–950 ramp

primary

#1D2B8C

secondary

#BCAD49

accent

#D33FE9

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080510

muted

#7B7A7F

Preview Lab

Preview with #1D2B8C

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

Preview Lab → · Contrast checker → · Palette generator →