#1D4073#1D4073

#1D4073 is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.4% C 0.097 H 258.0°. Best body text is #FFFFFF at 10.33:1 contrast (WCAG AA passes).

Color values

HEX	#1D4073
RGB	rgb(29, 64, 115)
HSL	hsl(216, 60%, 28%)
HSV	hsv(216, 75%, 45%)
CMYK	cmyk(74.8%, 44.3%, 0%, 54.9%)
CIE-LAB	lab(27.20, 6.40, -33.06)
CIE-LCH	lch(27.20, 33.67, 280.96°)
OKLab	oklab(37.42% -0.0201 -0.0945)
OKLCH	oklch(37.42% 0.097 258)
XYZ	xyz(5.4335, 5.1652, 16.9270)
Luminance	0.0517 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D4073 #73501D

analogous

#1D6B73 #1D4073 #251D73

triadic

#1D4073 #731D40 #40731D

tetradic

#1D4073 #731D6B #73501D #1D7325

square

#1D4073 #731D6B #73501D #1D7325

split-complementary

#1D4073 #73251D #6B731D

monochromatic

#060E18 #112542 #1D4073 #295BA4 #3C78CE

Accessibility & contrast

On white

10.33

#1D4073 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#1D4073 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D4073

10.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D4073	#FFFFFF	#000000	##FFFFFF
##1D4073	1.00	10.33	2.03	10.33
#FFFFFF	10.33	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#274575

Deuteranopia (green-blind)

#193D72

Tritanopia (blue-blind)

#004C54

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1d4073;
/* rgb */ color: rgb(29, 64, 115);
/* oklch */ color: oklch(37.4% 0.097 258.0);

Tailwind

colors: {
  custom: {
    50: '#65749b',
    500: '#1d4073',
    950: '#000000',
  },
}

SCSS

$custom: #1d4073;
$custom-light: #65749b;
$custom-dark: #000000;

JSON

{
  "hex": "#1d4073",
  "rgb": {
    "r": 29,
    "g": 64,
    "b": 115
  },
  "hsl": {
    "h": 215.581,
    "s": 59.722,
    "l": 28.235
  },
  "oklch": {
    "l": 0.37424,
    "c": 0.09657,
    "h": 258
  },
  "luminance": 0.05166
}

Semantic roles & 50–950 ramp

primary

#1D4073

secondary

#A77F45

accent

#A345E3

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #1D4073

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

Preview Lab → · Contrast checker → · Palette generator →