#1D427F#1D427F

#1D427F is a dark, moderate blue. Relative luminance 0.057; OKLCH L 38.8% C 0.112 H 259.9°. Best body text is #FFFFFF at 9.82:1 contrast (WCAG AA passes).

Color values

HEX	#1D427F
RGB	rgb(29, 66, 127)
HSL	hsl(217, 63%, 31%)
HSV	hsv(217, 77%, 50%)
CMYK	cmyk(77.2%, 48%, 0%, 50.2%)
CIE-LAB	lab(28.61, 9.88, -38.34)
CIE-LCH	lch(28.61, 39.59, 284.45°)
OKLab	oklab(38.77% -0.0196 -0.11)
OKLCH	oklch(38.77% 0.112 259.9)
XYZ	xyz(6.2843, 5.6892, 20.8415)
Luminance	0.0569 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D427F #7F5A1D

analogous

#1D737F #1D427F #291D7F

triadic

#1D427F #7F1D42 #427F1D

tetradic

#1D427F #7F1D73 #7F5A1D #1D7F29

square

#1D427F #7F1D73 #7F5A1D #1D7F29

split-complementary

#1D427F #7F291D #737F1D

monochromatic

#060E1B #12284D #1D427F #285CB1 #4279D4

Accessibility & contrast

On white

9.82

#1D427F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#1D427F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D427F

9.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D427F	#FFFFFF	#000000	##FFFFFF
##1D427F	1.00	9.82	2.14	9.82
#FFFFFF	9.82	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#224881

Deuteranopia (green-blind)

#0A3F7E

Tritanopia (blue-blind)

#00505A

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1d427f;
/* rgb */ color: rgb(29, 66, 127);
/* oklch */ color: oklch(38.8% 0.112 259.9);

Tailwind

colors: {
  custom: {
    50: '#6875a4',
    500: '#1d427f',
    950: '#000000',
  },
}

SCSS

$custom: #1d427f;
$custom-light: #6875a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1d427f",
  "rgb": {
    "r": 29,
    "g": 66,
    "b": 127
  },
  "hsl": {
    "h": 217.347,
    "s": 62.821,
    "l": 30.588
  },
  "oklch": {
    "l": 0.38772,
    "c": 0.11169,
    "h": 259.9
  },
  "luminance": 0.0569
}

Semantic roles & 50–950 ramp

primary

#1D427F

secondary

#B28945

accent

#A842E6

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1D427F

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

Preview Lab → · Contrast checker → · Palette generator →