#1D3080#1D3080

#1D3080 is a dark, vivid blue. Relative luminance 0.039; OKLCH L 34.9% C 0.137 H 268.1°. Best body text is #FFFFFF at 11.75:1 contrast (WCAG AA passes).

Color values

HEX	#1D3080
RGB	rgb(29, 48, 128)
HSL	hsl(228, 63%, 31%)
HSV	hsv(228, 77%, 50%)
CMYK	cmyk(77.3%, 62.5%, 0%, 49.8%)
CIE-LAB	lab(23.45, 22.87, -47.34)
CIE-LCH	lch(23.45, 52.57, 295.79°)
OKLab	oklab(34.89% -0.0045 -0.1367)
OKLCH	oklch(34.89% 0.137 268.1)
XYZ	xyz(5.4586, 3.9330, 20.8894)
Luminance	0.0393 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3080 #806D1D

analogous

#1D6180 #1D3080 #3B1D80

triadic

#1D3080 #801D30 #30801D

tetradic

#1D3080 #801D61 #806D1D #1D803B

square

#1D3080 #801D61 #806D1D #1D803B

split-complementary

#1D3080 #803B1D #61801D

monochromatic

#060B1C #121D4E #1D3080 #2843B2 #435FD4

Accessibility & contrast

On white

11.75

#1D3080 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#1D3080 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3080

11.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3080	#FFFFFF	#000000	##FFFFFF
##1D3080	1.00	11.75	1.79	11.75
#FFFFFF	11.75	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D83

Deuteranopia (green-blind)

#00337E

Tritanopia (blue-blind)

#004453

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1d3080;
/* rgb */ color: rgb(29, 48, 128);
/* oklch */ color: oklch(34.9% 0.137 268.1);

Tailwind

colors: {
  custom: {
    50: '#6968a6',
    500: '#1d3080',
    950: '#000000',
  },
}

SCSS

$custom: #1d3080;
$custom-light: #6968a6;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3080",
  "rgb": {
    "r": 29,
    "g": 48,
    "b": 128
  },
  "hsl": {
    "h": 228.485,
    "s": 63.057,
    "l": 30.784
  },
  "oklch": {
    "l": 0.34885,
    "c": 0.1368,
    "h": 268.1
  },
  "luminance": 0.03934
}

Semantic roles & 50–950 ramp

primary

#1D3080

secondary

#B39E45

accent

#C742E6

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #1D3080

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

Preview Lab → · Contrast checker → · Palette generator →