#1D3D7F#1D3D7F

#1D3D7F is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.6% C 0.118 H 262.7°. Best body text is #FFFFFF at 10.36:1 contrast (WCAG AA passes).

Color values

HEX	#1D3D7F
RGB	rgb(29, 61, 127)
HSL	hsl(220, 63%, 31%)
HSV	hsv(220, 77%, 50%)
CMYK	cmyk(77.2%, 52%, 0%, 50.2%)
CIE-LAB	lab(27.10, 13.35, -40.77)
CIE-LCH	lch(27.10, 42.91, 288.13°)
OKLab	oklab(37.61% -0.0151 -0.1172)
OKLCH	oklch(37.61% 0.118 262.7)
XYZ	xyz(6.0048, 5.1303, 20.7483)
Luminance	0.0513 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3D7F #7F5F1D

analogous

#1D6E7F #1D3D7F #2E1D7F

triadic

#1D3D7F #7F1D3D #3D7F1D

tetradic

#1D3D7F #7F1D6E #7F5F1D #1D7F2E

square

#1D3D7F #7F1D6E #7F5F1D #1D7F2E

split-complementary

#1D3D7F #7F2E1D #6E7F1D

monochromatic

#060D1B #12254D #1D3D7F #2855B1 #4272D4

Accessibility & contrast

On white

10.36

#1D3D7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#1D3D7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3D7F

10.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3D7F	#FFFFFF	#000000	##FFFFFF
##1D3D7F	1.00	10.36	2.03	10.36
#FFFFFF	10.36	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#154581

Deuteranopia (green-blind)

#003C7E

Tritanopia (blue-blind)

#004D58

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1d3d7f;
/* rgb */ color: rgb(29, 61, 127);
/* oklch */ color: oklch(37.6% 0.118 262.7);

Tailwind

colors: {
  custom: {
    50: '#6872a5',
    500: '#1d3d7f',
    950: '#000000',
  },
}

SCSS

$custom: #1d3d7f;
$custom-light: #6872a5;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3d7f",
  "rgb": {
    "r": 29,
    "g": 61,
    "b": 127
  },
  "hsl": {
    "h": 220.408,
    "s": 62.821,
    "l": 30.588
  },
  "oklch": {
    "l": 0.37613,
    "c": 0.11819,
    "h": 262.7
  },
  "luminance": 0.05131
}

Semantic roles & 50–950 ramp

primary

#1D3D7F

secondary

#B28F45

accent

#B042E6

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #1D3D7F

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

Preview Lab → · Contrast checker → · Palette generator →