#1D355C#1D355C

#1D355C is a dark, moderate blue. Relative luminance 0.036; OKLCH L 33.1% C 0.076 H 259.7°. Best body text is #FFFFFF at 12.24:1 contrast (WCAG AA passes).

Color values

HEX	#1D355C
RGB	rgb(29, 53, 92)
HSL	hsl(217, 52%, 24%)
HSV	hsv(217, 68%, 36%)
CMYK	cmyk(68.5%, 42.4%, 0%, 63.9%)
CIE-LAB	lab(22.23, 4.84, -26.14)
CIE-LCH	lch(22.23, 26.59, 280.48°)
OKLab	oklab(33.1% -0.0136 -0.0744)
OKLCH	oklch(33.1% 0.076 259.7)
XYZ	xyz(3.7109, 3.5798, 10.6185)
Luminance	0.0358 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D355C #5C441D

analogous

#1D545C #1D355C #241D5C

triadic

#1D355C #5C1D35 #355C1D

tetradic

#1D355C #5C1D54 #5C441D #1D5C24

square

#1D355C #5C1D54 #5C441D #1D5C24

split-complementary

#1D355C #5C241D #545C1D

monochromatic

#070D17 #0E1A2D #1D355C #2C508B #3A6BB9

Accessibility & contrast

On white

12.24

#1D355C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.72

#1D355C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D355C

12.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D355C	#FFFFFF	#000000	##FFFFFF
##1D355C	1.00	12.24	1.72	12.24
#FFFFFF	12.24	1.00	21.00	1.00
#000000	1.72	21.00	1.00	21.00
##FFFFFF	12.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#24385E

Deuteranopia (green-blind)

#1B325B

Tritanopia (blue-blind)

#003E44

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #1d355c;
/* rgb */ color: rgb(29, 53, 92);
/* oklch */ color: oklch(33.1% 0.076 259.7);

Tailwind

colors: {
  custom: {
    50: '#606b8a',
    500: '#1d355c',
    950: '#000000',
  },
}

SCSS

$custom: #1d355c;
$custom-light: #606b8a;
$custom-dark: #000000;

JSON

{
  "hex": "#1d355c",
  "rgb": {
    "r": 29,
    "g": 53,
    "b": 92
  },
  "hsl": {
    "h": 217.143,
    "s": 52.066,
    "l": 23.725
  },
  "oklch": {
    "l": 0.33099,
    "c": 0.07559,
    "h": 259.7
  },
  "luminance": 0.0358
}

Semantic roles & 50–950 ramp

primary

#1D355C

secondary

#917444

accent

#A54CDC

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #1D355C

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

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