#1D3A67#1D3A67

#1D3A67 is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.1% C 0.086 H 258.9°. Best body text is #FFFFFF at 11.33:1 contrast (WCAG AA passes).

Color values

HEX	#1D3A67
RGB	rgb(29, 58, 103)
HSL	hsl(216, 56%, 26%)
HSV	hsv(216, 72%, 40%)
CMYK	cmyk(71.8%, 43.7%, 0%, 59.6%)
CIE-LAB	lab(24.53, 5.73, -29.64)
CIE-LCH	lch(24.53, 30.19, 280.94°)
OKLab	oklab(35.11% -0.0165 -0.0845)
OKLCH	oklch(35.11% 0.086 258.9)
XYZ	xyz(4.4671, 4.2661, 13.4174)
Luminance	0.0427 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3A67 #674A1D

analogous

#1D5F67 #1D3A67 #251D67

triadic

#1D3A67 #671D3A #3A671D

tetradic

#1D3A67 #671D5F #674A1D #1D6725

square

#1D3A67 #671D5F #674A1D #1D6725

split-complementary

#1D3A67 #67251D #5F671D

monochromatic

#070D18 #101F37 #1D3A67 #2A5597 #3870C7

Accessibility & contrast

On white

11.33

#1D3A67 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#1D3A67 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3A67

11.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3A67	#FFFFFF	#000000	##FFFFFF
##1D3A67	1.00	11.33	1.85	11.33
#FFFFFF	11.33	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#253E69

Deuteranopia (green-blind)

#193766

Tritanopia (blue-blind)

#00444B

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #1d3a67;
/* rgb */ color: rgb(29, 58, 103);
/* oklch */ color: oklch(35.1% 0.086 258.9);

Tailwind

colors: {
  custom: {
    50: '#636f93',
    500: '#1d3a67',
    950: '#000000',
  },
}

SCSS

$custom: #1d3a67;
$custom-light: #636f93;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3a67",
  "rgb": {
    "r": 29,
    "g": 58,
    "b": 103
  },
  "hsl": {
    "h": 216.486,
    "s": 56.061,
    "l": 25.882
  },
  "oklch": {
    "l": 0.35109,
    "c": 0.08614,
    "h": 258.9
  },
  "luminance": 0.04267
}

Semantic roles & 50–950 ramp

primary

#1D3A67

secondary

#9C7944

accent

#A448DF

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #1D3A67

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

Preview Lab → · Contrast checker → · Palette generator →