#1D437A#1D437A

#1D437A is a dark, moderate blue. Relative luminance 0.057; OKLCH L 38.6% C 0.103 H 257.9°. Best body text is #FFFFFF at 9.83:1 contrast (WCAG AA passes).

Color values

HEX	#1D437A
RGB	rgb(29, 67, 122)
HSL	hsl(215, 62%, 30%)
HSV	hsv(215, 76%, 48%)
CMYK	cmyk(76.2%, 45.1%, 0%, 52.2%)
CIE-LAB	lab(28.59, 7.17, -35.25)
CIE-LCH	lch(28.59, 35.97, 281.49°)
OKLab	oklab(38.65% -0.0215 -0.1008)
OKLCH	oklch(38.65% 0.103 257.9)
XYZ	xyz(6.0254, 5.6800, 19.1874)
Luminance	0.0568 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D437A #7A541D

analogous

#1D727A #1D437A #261D7A

triadic

#1D437A #7A1D43 #437A1D

tetradic

#1D437A #7A1D72 #7A541D #1D7A26

square

#1D437A #7A1D72 #7A541D #1D7A26

split-complementary

#1D437A #7A261D #727A1D

monochromatic

#060E19 #112849 #1D437A #295EAB #407BD2

Accessibility & contrast

On white

9.83

#1D437A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#1D437A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D437A

9.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D437A	#FFFFFF	#000000	##FFFFFF
##1D437A	1.00	9.83	2.14	9.83
#FFFFFF	9.83	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#28487C

Deuteranopia (green-blind)

#173F79

Tritanopia (blue-blind)

#005058

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #1d437a;
/* rgb */ color: rgb(29, 67, 122);
/* oklch */ color: oklch(38.6% 0.103 257.9);

Tailwind

colors: {
  custom: {
    50: '#6776a1',
    500: '#1d437a',
    950: '#000000',
  },
}

SCSS

$custom: #1d437a;
$custom-light: #6776a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1d437a",
  "rgb": {
    "r": 29,
    "g": 67,
    "b": 122
  },
  "hsl": {
    "h": 215.484,
    "s": 61.589,
    "l": 29.608
  },
  "oklch": {
    "l": 0.38646,
    "c": 0.10312,
    "h": 257.9
  },
  "luminance": 0.05681
}

Semantic roles & 50–950 ramp

primary

#1D437A

secondary

#AE8345

accent

#A343E5

background

#F6F7F9

surface

#EBEDF2

border

#C6C8CC

text

#07080F

muted

#7A7B7E

Preview Lab

Preview with #1D437A

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

Preview Lab → · Contrast checker → · Palette generator →