#1D427B#1D427B

#1D427B is a dark, moderate blue. Relative luminance 0.056; OKLCH L 38.5% C 0.106 H 258.9°. Best body text is #FFFFFF at 9.92:1 contrast (WCAG AA passes).

Color values

HEX	#1D427B
RGB	rgb(29, 66, 123)
HSL	hsl(216, 62%, 30%)
HSV	hsv(216, 76%, 48%)
CMYK	cmyk(76.4%, 46.3%, 0%, 51.8%)
CIE-LAB	lab(28.35, 8.26, -36.27)
CIE-LCH	lch(28.35, 37.20, 282.83°)
OKLab	oklab(38.48% -0.0204 -0.1039)
OKLCH	oklch(38.48% 0.106 258.9)
XYZ	xyz(6.0288, 5.5870, 19.4957)
Luminance	0.0559 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D427B #7B561D

analogous

#1D717B #1D427B #271D7B

triadic

#1D427B #7B1D42 #427B1D

tetradic

#1D427B #7B1D71 #7B561D #1D7B27

square

#1D427B #7B1D71 #7B561D #1D7B27

split-complementary

#1D427B #7B271D #717B1D

monochromatic

#060D19 #112749 #1D427B #295DAD #407AD2

Accessibility & contrast

On white

9.92

#1D427B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#1D427B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D427B

9.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D427B	#FFFFFF	#000000	##FFFFFF
##1D427B	1.00	9.92	2.12	9.92
#FFFFFF	9.92	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25477D

Deuteranopia (green-blind)

#123F7A

Tritanopia (blue-blind)

#004F58

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1d427b;
/* rgb */ color: rgb(29, 66, 123);
/* oklch */ color: oklch(38.5% 0.106 258.9);

Tailwind

colors: {
  custom: {
    50: '#6775a1',
    500: '#1d427b',
    950: '#000000',
  },
}

SCSS

$custom: #1d427b;
$custom-light: #6775a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d427b",
  "rgb": {
    "r": 29,
    "g": 66,
    "b": 123
  },
  "hsl": {
    "h": 216.383,
    "s": 61.842,
    "l": 29.804
  },
  "oklch": {
    "l": 0.38478,
    "c": 0.10584,
    "h": 258.9
  },
  "luminance": 0.05588
}

Semantic roles & 50–950 ramp

primary

#1D427B

secondary

#AF8545

accent

#A543E5

background

#F6F7FA

surface

#EBEDF3

border

#C6C8CD

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1D427B

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

Preview Lab → · Contrast checker → · Palette generator →