#1D447F#1D447F

#1D447F is a dark, moderate blue. Relative luminance 0.059; OKLCH L 39.2% C 0.109 H 258.7°. Best body text is #FFFFFF at 9.61:1 contrast (WCAG AA passes).

Color values

HEX	#1D447F
RGB	rgb(29, 68, 127)
HSL	hsl(216, 63%, 31%)
HSV	hsv(216, 77%, 50%)
CMYK	cmyk(77.2%, 46.5%, 0%, 50.2%)
CIE-LAB	lab(29.23, 8.50, -37.36)
CIE-LCH	lch(29.23, 38.31, 282.82°)
OKLab	oklab(39.25% -0.0214 -0.107)
OKLCH	oklch(39.25% 0.109 258.7)
XYZ	xyz(6.4032, 5.9270, 20.8811)
Luminance	0.0593 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D447F #7F581D

analogous

#1D757F #1D447F #271D7F

triadic

#1D447F #7F1D44 #447F1D

tetradic

#1D447F #7F1D75 #7F581D #1D7F27

square

#1D447F #7F1D75 #7F581D #1D7F27

split-complementary

#1D447F #7F271D #757F1D

monochromatic

#060F1B #12294D #1D447F #285FB1 #427CD4

Accessibility & contrast

On white

9.61

#1D447F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#1D447F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D447F

9.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D447F	#FFFFFF	#000000	##FFFFFF
##1D447F	1.00	9.61	2.19	9.61
#FFFFFF	9.61	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#264A81

Deuteranopia (green-blind)

#12417E

Tritanopia (blue-blind)

#00525B

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #1d447f;
/* rgb */ color: rgb(29, 68, 127);
/* oklch */ color: oklch(39.2% 0.109 258.7);

Tailwind

colors: {
  custom: {
    50: '#6877a4',
    500: '#1d447f',
    950: '#000000',
  },
}

SCSS

$custom: #1d447f;
$custom-light: #6877a4;
$custom-dark: #000000;

JSON

{
  "hex": "#1d447f",
  "rgb": {
    "r": 29,
    "g": 68,
    "b": 127
  },
  "hsl": {
    "h": 216.122,
    "s": 62.821,
    "l": 30.588
  },
  "oklch": {
    "l": 0.39245,
    "c": 0.10916,
    "h": 258.7
  },
  "luminance": 0.05928
}

Semantic roles & 50–950 ramp

primary

#1D447F

secondary

#B28745

accent

#A542E6

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1D447F

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

Preview Lab → · Contrast checker → · Palette generator →