#1D479B#1D479B

#1D479B is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.1% C 0.145 H 262.2°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#1D479B
RGB	rgb(29, 71, 155)
HSL	hsl(220, 68%, 36%)
HSV	hsv(220, 81%, 61%)
CMYK	cmyk(81.3%, 54.2%, 0%, 39.2%)
CIE-LAB	lab(32.11, 17.75, -49.92)
CIE-LCH	lch(32.11, 52.98, 289.57°)
OKLab	oklab(42.09% -0.0198 -0.1439)
OKLCH	oklch(42.09% 0.145 262.2)
XYZ	xyz(8.6742, 7.1332, 31.9237)
Luminance	0.0713 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D479B #9B711D

analogous

#1D869B #1D479B #321D9B

triadic

#1D479B #9B1D47 #479B1D

tetradic

#1D479B #9B1D86 #9B711D #1D9B32

square

#1D479B #9B1D86 #9B711D #1D9B32

split-complementary

#1D479B #9B321D #869B1D

monochromatic

#0A1834 #132F67 #1D479B #275FCF #5382DF

Accessibility & contrast

On white

8.65

#1D479B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#1D479B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D479B

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D479B	#FFFFFF	#000000	##FFFFFF
##1D479B	1.00	8.65	2.43	8.65
#FFFFFF	8.65	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#03529E

Deuteranopia (green-blind)

#004699

Tritanopia (blue-blind)

#005C6A

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1d479b;
/* rgb */ color: rgb(29, 71, 155);
/* oklch */ color: oklch(42.1% 0.145 262.2);

Tailwind

colors: {
  custom: {
    50: '#6f79b9',
    500: '#1d479b',
    950: '#000000',
  },
}

SCSS

$custom: #1d479b;
$custom-light: #6f79b9;
$custom-dark: #000000;

JSON

{
  "hex": "#1d479b",
  "rgb": {
    "r": 29,
    "g": 71,
    "b": 155
  },
  "hsl": {
    "h": 220,
    "s": 68.478,
    "l": 36.078
  },
  "oklch": {
    "l": 0.42086,
    "c": 0.14529,
    "h": 262.2
  },
  "luminance": 0.07134
}

Semantic roles & 50–950 ramp

primary

#1D479B

secondary

#C29D52

accent

#B13CEB

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #1D479B

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

Preview Lab → · Contrast checker → · Palette generator →