#1D2B8E#1D2B8E

#1D2B8E is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.3% C 0.162 H 269.3°. Best body text is #FFFFFF at 11.74:1 contrast (WCAG AA passes).

Color values

HEX	#1D2B8E
RGB	rgb(29, 43, 142)
HSL	hsl(233, 66%, 34%)
HSV	hsv(233, 80%, 56%)
CMYK	cmyk(79.6%, 69.7%, 0%, 44.3%)
CIE-LAB	lab(23.48, 31.67, -56.04)
CIE-LCH	lch(23.48, 64.37, 299.47°)
OKLab	oklab(35.31% -0.002 -0.1623)
OKLCH	oklch(35.31% 0.162 269.3)
XYZ	xyz(6.2514, 3.9413, 26.0172)
Luminance	0.0394 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2B8E #8E801D

analogous

#1D638E #1D2B8E #471D8E

triadic

#1D2B8E #8E1D2B #2B8E1D

tetradic

#1D2B8E #8E1D63 #8E801D #1D8E47

square

#1D2B8E #8E1D63 #8E801D #1D8E47

split-complementary

#1D2B8E #8E471D #638E1D

monochromatic

#080C28 #131C5B #1D2B8E #273AC1 #4B5DDA

Accessibility & contrast

On white

11.74

#1D2B8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#1D2B8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2B8E

11.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2B8E	#FFFFFF	#000000	##FFFFFF
##1D2B8E	1.00	11.74	1.79	11.74
#FFFFFF	11.74	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D91

Deuteranopia (green-blind)

#00338C

Tritanopia (blue-blind)

#004659

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1d2b8e;
/* rgb */ color: rgb(29, 43, 142);
/* oklch */ color: oklch(35.3% 0.162 269.3);

Tailwind

colors: {
  custom: {
    50: '#6d64b0',
    500: '#1d2b8e',
    950: '#000000',
  },
}

SCSS

$custom: #1d2b8e;
$custom-light: #6d64b0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2b8e",
  "rgb": {
    "r": 29,
    "g": 43,
    "b": 142
  },
  "hsl": {
    "h": 232.566,
    "s": 66.082,
    "l": 33.529
  },
  "oklch": {
    "l": 0.3531,
    "c": 0.16227,
    "h": 269.3
  },
  "luminance": 0.03942
}

Semantic roles & 50–950 ramp

primary

#1D2B8E

secondary

#BDAE4A

accent

#D43FE9

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080511

muted

#7B7A80

Preview Lab

Preview with #1D2B8E

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

Preview Lab → · Contrast checker → · Palette generator →