#1D2B79#1D2B79

#1D2B79 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 33.2% C 0.133 H 269.7°. Best body text is #FFFFFF at 12.55:1 contrast (WCAG AA passes).

Color values

HEX	#1D2B79
RGB	rgb(29, 43, 121)
HSL	hsl(231, 61%, 29%)
HSV	hsv(231, 76%, 47%)
CMYK	cmyk(76%, 64.5%, 0%, 52.5%)
CIE-LAB	lab(21.46, 23.59, -46.14)
CIE-LCH	lch(21.46, 51.82, 297.08°)
OKLab	oklab(33.22% -0.0008 -0.1333)
OKLCH	oklch(33.22% 0.133 269.7)
XYZ	xyz(4.8206, 3.3689, 18.4817)
Luminance	0.0337 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D2B79 #796B1D

analogous

#1D5979 #1D2B79 #3D1D79

triadic

#1D2B79 #791D2B #2B791D

tetradic

#1D2B79 #791D59 #796B1D #1D793D

square

#1D2B79 #791D59 #796B1D #1D793D

split-complementary

#1D2B79 #793D1D #59791D

monochromatic

#060919 #111948 #1D2B79 #293DAA #3F56D1

Accessibility & contrast

On white

12.55

#1D2B79 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#1D2B79 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D2B79

12.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D2B79	#FFFFFF	#000000	##FFFFFF
##1D2B79	1.00	12.55	1.67	12.55
#FFFFFF	12.55	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00387C

Deuteranopia (green-blind)

#002F78

Tritanopia (blue-blind)

#003F4D

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #1d2b79;
/* rgb */ color: rgb(29, 43, 121);
/* oklch */ color: oklch(33.2% 0.133 269.7);

Tailwind

colors: {
  custom: {
    50: '#6864a0',
    500: '#1d2b79',
    950: '#000000',
  },
}

SCSS

$custom: #1d2b79;
$custom-light: #6864a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d2b79",
  "rgb": {
    "r": 29,
    "g": 43,
    "b": 121
  },
  "hsl": {
    "h": 230.87,
    "s": 61.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.33221,
    "c": 0.13329,
    "h": 269.7
  },
  "luminance": 0.03369
}

Semantic roles & 50–950 ramp

primary

#1D2B79

secondary

#AD9D45

accent

#CC43E4

background

#F6F5FA

surface

#EBEAF3

border

#C6C6CD

text

#07050F

muted

#7A797F

Preview Lab

Preview with #1D2B79

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

Preview Lab → · Contrast checker → · Palette generator →