#1D356E#1D356E

#1D356E is a dark, moderate blue. Relative luminance 0.039; OKLCH L 34.4% C 0.103 H 264.4°. Best body text is #FFFFFF at 11.75:1 contrast (WCAG AA passes).

Color values

HEX	#1D356E
RGB	rgb(29, 53, 110)
HSL	hsl(222, 58%, 27%)
HSV	hsv(222, 74%, 43%)
CMYK	cmyk(73.6%, 51.8%, 0%, 56.9%)
CIE-LAB	lab(23.45, 12.09, -35.89)
CIE-LCH	lch(23.45, 37.87, 288.62°)
OKLab	oklab(34.43% -0.01 -0.103)
OKLCH	oklch(34.43% 0.103 264.4)
XYZ	xyz(4.5933, 3.9327, 15.2658)
Luminance	0.0393 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D356E #6E561D

analogous

#1D5E6E #1D356E #2E1D6E

triadic

#1D356E #6E1D35 #356E1D

tetradic

#1D356E #6E1D5E #6E561D #1D6E2E

square

#1D356E #6E1D5E #6E561D #1D6E2E

split-complementary

#1D356E #6E2E1D #5E6E1D

monochromatic

#060C18 #101E3E #1D356E #2A4C9E #3A65CB

Accessibility & contrast

On white

11.75

#1D356E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#1D356E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D356E

11.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D356E	#FFFFFF	#000000	##FFFFFF
##1D356E	1.00	11.75	1.79	11.75
#FFFFFF	11.75	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#153C70

Deuteranopia (green-blind)

#00346D

Tritanopia (blue-blind)

#00424C

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #1d356e;
/* rgb */ color: rgb(29, 53, 110);
/* oklch */ color: oklch(34.4% 0.103 264.4);

Tailwind

colors: {
  custom: {
    50: '#646b98',
    500: '#1d356e',
    950: '#000000',
  },
}

SCSS

$custom: #1d356e;
$custom-light: #646b98;
$custom-dark: #000000;

JSON

{
  "hex": "#1d356e",
  "rgb": {
    "r": 29,
    "g": 53,
    "b": 110
  },
  "hsl": {
    "h": 222.222,
    "s": 58.273,
    "l": 27.255
  },
  "oklch": {
    "l": 0.34428,
    "c": 0.10348,
    "h": 264.4
  },
  "luminance": 0.03933
}

Semantic roles & 50–950 ramp

primary

#1D356E

secondary

#A28744

accent

#B446E1

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060E

muted

#7A7A7E

Preview Lab

Preview with #1D356E

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

Preview Lab → · Contrast checker → · Palette generator →