#1D355D#1D355D

#1D355D is a dark, moderate blue. Relative luminance 0.036; OKLCH L 33.2% C 0.077 H 260.1°. Best body text is #FFFFFF at 12.21:1 contrast (WCAG AA passes).

Color values

HEX	#1D355D
RGB	rgb(29, 53, 93)
HSL	hsl(218, 52%, 24%)
HSV	hsv(218, 69%, 36%)
CMYK	cmyk(68.8%, 43%, 0%, 63.5%)
CIE-LAB	lab(22.29, 5.23, -26.70)
CIE-LCH	lch(22.29, 27.21, 281.09°)
OKLab	oklab(33.17% -0.0133 -0.076)
OKLCH	oklch(33.17% 0.077 260.1)
XYZ	xyz(3.7549, 3.5974, 10.8503)
Luminance	0.0360 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D355D #5D451D

analogous

#1D555D #1D355D #251D5D

triadic

#1D355D #5D1D35 #355D1D

tetradic

#1D355D #5D1D55 #5D451D #1D5D25

square

#1D355D #5D1D55 #5D451D #1D5D25

split-complementary

#1D355D #5D251D #555D1D

monochromatic

#070D17 #0E1A2E #1D355D #2C508C #3A6ABA

Accessibility & contrast

On white

12.21

#1D355D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#1D355D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D355D

12.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D355D	#FFFFFF	#000000	##FFFFFF
##1D355D	1.00	12.21	1.72	12.21
#FFFFFF	12.21	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23395F

Deuteranopia (green-blind)

#1A335C

Tritanopia (blue-blind)

#003E44

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1d355d;
/* rgb */ color: rgb(29, 53, 93);
/* oklch */ color: oklch(33.2% 0.077 260.1);

Tailwind

colors: {
  custom: {
    50: '#606b8b',
    500: '#1d355d',
    950: '#000000',
  },
}

SCSS

$custom: #1d355d;
$custom-light: #606b8b;
$custom-dark: #000000;

JSON

{
  "hex": "#1d355d",
  "rgb": {
    "r": 29,
    "g": 53,
    "b": 93
  },
  "hsl": {
    "h": 217.5,
    "s": 52.459,
    "l": 23.922
  },
  "oklch": {
    "l": 0.33168,
    "c": 0.07716,
    "h": 260.1
  },
  "luminance": 0.03598
}

Semantic roles & 50–950 ramp

primary

#1D355D

secondary

#927544

accent

#A64CDC

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #1D355D

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

Preview Lab → · Contrast checker → · Palette generator →