#1D3D7B#1D3D7B

#1D3D7B is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.3% C 0.112 H 262.0°. Best body text is #FFFFFF at 10.47:1 contrast (WCAG AA passes).

Color values

HEX	#1D3D7B
RGB	rgb(29, 61, 123)
HSL	hsl(220, 62%, 30%)
HSV	hsv(220, 76%, 48%)
CMYK	cmyk(76.4%, 50.4%, 0%, 51.8%)
CIE-LAB	lab(26.81, 11.73, -38.73)
CIE-LCH	lch(26.81, 40.46, 286.85°)
OKLab	oklab(37.3% -0.0157 -0.1112)
OKLCH	oklch(37.3% 0.112 262)
XYZ	xyz(5.7493, 5.0281, 19.4026)
Luminance	0.0503 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3D7B #7B5B1D

analogous

#1D6C7B #1D3D7B #2C1D7B

triadic

#1D3D7B #7B1D3D #3D7B1D

tetradic

#1D3D7B #7B1D6C #7B5B1D #1D7B2C

square

#1D3D7B #7B1D6C #7B5B1D #1D7B2C

split-complementary

#1D3D7B #7B2C1D #6C7B1D

monochromatic

#060C19 #112449 #1D3D7B #2956AD #4072D2

Accessibility & contrast

On white

10.47

#1D3D7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#1D3D7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3D7B

10.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3D7B	#FFFFFF	#000000	##FFFFFF
##1D3D7B	1.00	10.47	2.01	10.47
#FFFFFF	10.47	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A447D

Deuteranopia (green-blind)

#003B7A

Tritanopia (blue-blind)

#004C56

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #1d3d7b;
/* rgb */ color: rgb(29, 61, 123);
/* oklch */ color: oklch(37.3% 0.112 262.0);

Tailwind

colors: {
  custom: {
    50: '#6772a2',
    500: '#1d3d7b',
    950: '#000000',
  },
}

SCSS

$custom: #1d3d7b;
$custom-light: #6772a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3d7b",
  "rgb": {
    "r": 29,
    "g": 61,
    "b": 123
  },
  "hsl": {
    "h": 219.574,
    "s": 61.842,
    "l": 29.804
  },
  "oklch": {
    "l": 0.37301,
    "c": 0.1123,
    "h": 262
  },
  "luminance": 0.05029
}

Semantic roles & 50–950 ramp

primary

#1D3D7B

secondary

#AF8B45

accent

#AE43E5

background

#F6F6FA

surface

#EBECF3

border

#C6C7CD

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1D3D7B

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

Preview Lab → · Contrast checker → · Palette generator →