#1D3078#1D3078

#1D3078 is a dark, vivid blue. Relative luminance 0.037; OKLCH L 34.2% C 0.125 H 267.9°. Best body text is #FFFFFF at 12.03:1 contrast (WCAG AA passes).

Color values

HEX	#1D3078
RGB	rgb(29, 48, 120)
HSL	hsl(227, 61%, 29%)
HSV	hsv(227, 76%, 47%)
CMYK	cmyk(75.8%, 60%, 0%, 52.9%)
CIE-LAB	lab(22.76, 19.68, -43.39)
CIE-LCH	lch(22.76, 47.65, 294.40°)
OKLab	oklab(34.16% -0.0047 -0.1251)
OKLCH	oklch(34.16% 0.125 267.9)
XYZ	xyz(4.9526, 3.7307, 18.2247)
Luminance	0.0373 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3078 #78651D

analogous

#1D5E78 #1D3078 #381D78

triadic

#1D3078 #781D30 #30781D

tetradic

#1D3078 #781D5E #78651D #1D7838

square

#1D3078 #781D5E #78651D #1D7838

split-complementary

#1D3078 #78381D #5E781D

monochromatic

#060A19 #111C47 #1D3078 #2944A9 #3F5DD1

Accessibility & contrast

On white

12.03

#1D3078 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.75

#1D3078 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3078

12.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3078	#FFFFFF	#000000	##FFFFFF
##1D3078	1.00	12.03	1.75	12.03
#FFFFFF	12.03	1.00	21.00	1.00
#000000	1.75	21.00	1.00	21.00
##FFFFFF	12.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B7A

Deuteranopia (green-blind)

#003277

Tritanopia (blue-blind)

#00424F

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1d3078;
/* rgb */ color: rgb(29, 48, 120);
/* oklch */ color: oklch(34.2% 0.125 267.9);

Tailwind

colors: {
  custom: {
    50: '#6768a0',
    500: '#1d3078',
    950: '#000000',
  },
}

SCSS

$custom: #1d3078;
$custom-light: #6768a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3078",
  "rgb": {
    "r": 29,
    "g": 48,
    "b": 120
  },
  "hsl": {
    "h": 227.473,
    "s": 61.074,
    "l": 29.216
  },
  "oklch": {
    "l": 0.34157,
    "c": 0.12524,
    "h": 267.9
  },
  "luminance": 0.03731
}

Semantic roles & 50–950 ramp

primary

#1D3078

secondary

#AC9645

accent

#C344E4

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#07060F

muted

#7A7A7E

Preview Lab

Preview with #1D3078

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

Preview Lab → · Contrast checker → · Palette generator →