#1D3555#1D3555

#1D3555 is a dark, moderate cyan. Relative luminance 0.035; OKLCH L 32.6% C 0.065 H 256.1°. Best body text is #FFFFFF at 12.41:1 contrast (WCAG AA passes).

Color values

HEX	#1D3555
RGB	rgb(29, 53, 85)
HSL	hsl(214, 49%, 22%)
HSV	hsv(214, 66%, 33%)
CMYK	cmyk(65.9%, 37.6%, 0%, 66.7%)
CIE-LAB	lab(21.81, 2.08, -22.19)
CIE-LCH	lch(21.81, 22.29, 275.35°)
OKLab	oklab(32.64% -0.0155 -0.0628)
OKLCH	oklch(32.64% 0.065 256.1)
XYZ	xyz(3.4189, 3.4630, 9.0808)
Luminance	0.0346 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3555 #553D1D

analogous

#1D5155 #1D3555 #211D55

triadic

#1D3555 #551D35 #35551D

tetradic

#1D3555 #551D51 #553D1D #1D5521

square

#1D3555 #551D51 #553D1D #1D5521

split-complementary

#1D3555 #55211D #51551D

monochromatic

#080E17 #0D1927 #1D3555 #2D5183 #3C6EB0

Accessibility & contrast

On white

12.41

#1D3555 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#1D3555 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3555

12.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3555	#FFFFFF	#000000	##FFFFFF
##1D3555	1.00	12.41	1.69	12.41
#FFFFFF	12.41	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#273756

Deuteranopia (green-blind)

#203254

Tritanopia (blue-blind)

#003C41

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #1d3555;
/* rgb */ color: rgb(29, 53, 85);
/* oklch */ color: oklch(32.6% 0.065 256.1);

Tailwind

colors: {
  custom: {
    50: '#5f6b85',
    500: '#1d3555',
    950: '#000000',
  },
}

SCSS

$custom: #1d3555;
$custom-light: #5f6b85;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3555",
  "rgb": {
    "r": 29,
    "g": 53,
    "b": 85
  },
  "hsl": {
    "h": 214.286,
    "s": 49.123,
    "l": 22.353
  },
  "oklch": {
    "l": 0.32635,
    "c": 0.0647,
    "h": 256.1
  },
  "luminance": 0.03463
}

Semantic roles & 50–950 ramp

primary

#1D3555

secondary

#8A6C44

accent

#9E4FD9

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#05060B

muted

#797A7C

Preview Lab

Preview with #1D3555

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

Preview Lab → · Contrast checker → · Palette generator →