#1D2B7E#1D2B7E

#1D2B7E is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.7% C 0.140 H 269.6°. Best body text is #FFFFFF at 12.36:1 contrast (WCAG AA passes).

Color values

HEX	#1D2B7E
RGB	rgb(29, 43, 126)
HSL	hsl(231, 63%, 30%)
HSV	hsv(231, 77%, 49%)
CMYK	cmyk(77%, 65.9%, 0%, 50.6%)
CIE-LAB	lab(21.93, 25.55, -48.56)
CIE-LCH	lch(21.93, 54.87, 297.75°)
OKLab	oklab(33.7% -0.0009 -0.1404)
OKLCH	oklch(33.7% 0.14 269.6)
XYZ	xyz(5.1352, 3.4948, 20.1385)
Luminance	0.0350 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2B7E #7E701D

analogous

#1D5B7E #1D2B7E #3F1D7E

triadic

#1D2B7E #7E1D2B #2B7E1D

tetradic

#1D2B7E #7E1D5B #7E701D #1D7E3F

square

#1D2B7E #7E1D5B #7E701D #1D7E3F

split-complementary

#1D2B7E #7E3F1D #5B7E1D

monochromatic

#06091B #121A4C #1D2B7E #283CB0 #4257D3

Accessibility & contrast

On white

12.36

#1D2B7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#1D2B7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2B7E

12.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2B7E	#FFFFFF	#000000	##FFFFFF
##1D2B7E	1.00	12.36	1.70	12.36
#FFFFFF	12.36	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003981

Deuteranopia (green-blind)

#00307C

Tritanopia (blue-blind)

#004150

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1d2b7e;
/* rgb */ color: rgb(29, 43, 126);
/* oklch */ color: oklch(33.7% 0.140 269.6);

Tailwind

colors: {
  custom: {
    50: '#6964a4',
    500: '#1d2b7e',
    950: '#000000',
  },
}

SCSS

$custom: #1d2b7e;
$custom-light: #6964a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2b7e",
  "rgb": {
    "r": 29,
    "g": 43,
    "b": 126
  },
  "hsl": {
    "h": 231.34,
    "s": 62.581,
    "l": 30.392
  },
  "oklch": {
    "l": 0.33703,
    "c": 0.14038,
    "h": 269.6
  },
  "luminance": 0.03495
}

Semantic roles & 50–950 ramp

primary

#1D2B7E

secondary

#B1A245

accent

#CE42E6

background

#F6F5FA

surface

#ECEAF4

border

#C7C6CE

text

#07050F

muted

#7A797F

Preview Lab

Preview with #1D2B7E

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

Preview Lab → · Contrast checker → · Palette generator →