#1D3E7B#1D3E7B

#1D3E7B is a dark, moderate blue. Relative luminance 0.051; OKLCH L 37.5% C 0.111 H 261.4°. Best body text is #FFFFFF at 10.36:1 contrast (WCAG AA passes).

Color values

HEX	#1D3E7B
RGB	rgb(29, 62, 123)
HSL	hsl(219, 62%, 30%)
HSV	hsv(219, 76%, 48%)
CMYK	cmyk(76.4%, 49.6%, 0%, 51.8%)
CIE-LAB	lab(27.12, 11.03, -38.24)
CIE-LCH	lch(27.12, 39.80, 286.09°)
OKLab	oklab(37.53% -0.0166 -0.1097)
OKLCH	oklch(37.53% 0.111 261.4)
XYZ	xyz(5.8032, 5.1359, 19.4205)
Luminance	0.0514 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3E7B #7B5A1D

analogous

#1D6D7B #1D3E7B #2B1D7B

triadic

#1D3E7B #7B1D3E #3E7B1D

tetradic

#1D3E7B #7B1D6D #7B5A1D #1D7B2B

square

#1D3E7B #7B1D6D #7B5A1D #1D7B2B

split-complementary

#1D3E7B #7B2B1D #6D7B1D

monochromatic

#060C19 #112549 #1D3E7B #2957AD #4074D2

Accessibility & contrast

On white

10.36

#1D3E7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#1D3E7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3E7B

10.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3E7B	#FFFFFF	#000000	##FFFFFF
##1D3E7B	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)

#1D457D

Deuteranopia (green-blind)

#033C7A

Tritanopia (blue-blind)

#004C56

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #1d3e7b;
/* rgb */ color: rgb(29, 62, 123);
/* oklch */ color: oklch(37.5% 0.111 261.4);

Tailwind

colors: {
  custom: {
    50: '#6772a2',
    500: '#1d3e7b',
    950: '#000000',
  },
}

SCSS

$custom: #1d3e7b;
$custom-light: #6772a2;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3e7b",
  "rgb": {
    "r": 29,
    "g": 62,
    "b": 123
  },
  "hsl": {
    "h": 218.936,
    "s": 61.842,
    "l": 29.804
  },
  "oklch": {
    "l": 0.37534,
    "c": 0.11099,
    "h": 261.4
  },
  "luminance": 0.05137
}

Semantic roles & 50–950 ramp

primary

#1D3E7B

secondary

#AF8A45

accent

#AC43E5

background

#F6F6FA

surface

#EBECF3

border

#C6C7CD

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1D3E7B

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

Preview Lab → · Contrast checker → · Palette generator →