#1D3755#1D3755

#1D3755 is a dark, moderate cyan. Relative luminance 0.036; OKLCH L 33.2% C 0.062 H 253.2°. Best body text is #FFFFFF at 12.14:1 contrast (WCAG AA passes).

Color values

HEX	#1D3755
RGB	rgb(29, 55, 85)
HSL	hsl(212, 49%, 22%)
HSV	hsv(212, 66%, 33%)
CMYK	cmyk(65.9%, 35.3%, 0%, 66.7%)
CIE-LAB	lab(22.48, 0.69, -21.14)
CIE-LCH	lch(22.48, 21.15, 271.88°)
OKLab	oklab(33.16% -0.018 -0.0597)
OKLCH	oklch(33.16% 0.062 253.2)
XYZ	xyz(3.5120, 3.6491, 9.1118)
Luminance	0.0365 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D3755 #553B1D

analogous

#1D5355 #1D3755 #1F1D55

triadic

#1D3755 #551D37 #37551D

tetradic

#1D3755 #551D53 #553B1D #1D551F

square

#1D3755 #551D53 #553B1D #1D551F

split-complementary

#1D3755 #551F1D #53551D

monochromatic

#080F17 #0D1927 #1D3755 #2D5583 #3C72B0

Accessibility & contrast

On white

12.14

#1D3755 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.73

#1D3755 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D3755

12.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D3755	#FFFFFF	#000000	##FFFFFF
##1D3755	1.00	12.14	1.73	12.14
#FFFFFF	12.14	1.00	21.00	1.00
#000000	1.73	21.00	1.00	21.00
##FFFFFF	12.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A3956

Deuteranopia (green-blind)

#233354

Tritanopia (blue-blind)

#003E42

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #1d3755;
/* rgb */ color: rgb(29, 55, 85);
/* oklch */ color: oklch(33.2% 0.062 253.2);

Tailwind

colors: {
  custom: {
    50: '#5f6d85',
    500: '#1d3755',
    950: '#000000',
  },
}

SCSS

$custom: #1d3755;
$custom-light: #5f6d85;
$custom-dark: #000000;

JSON

{
  "hex": "#1d3755",
  "rgb": {
    "r": 29,
    "g": 55,
    "b": 85
  },
  "hsl": {
    "h": 212.143,
    "s": 49.123,
    "l": 22.353
  },
  "oklch": {
    "l": 0.33155,
    "c": 0.0624,
    "h": 253.2
  },
  "luminance": 0.03649
}

Semantic roles & 50–950 ramp

primary

#1D3755

secondary

#8A6944

accent

#994FD9

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#05070B

muted

#797A7C

Preview Lab

Preview with #1D3755

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

Preview Lab → · Contrast checker → · Palette generator →