#1D405A#1D405A

#1D405A is a dark, moderate cyan. Relative luminance 0.047; OKLCH L 35.8% C 0.061 H 243.1°. Best body text is #FFFFFF at 10.86:1 contrast (WCAG AA passes).

Color values

HEX	#1D405A
RGB	rgb(29, 64, 90)
HSL	hsl(206, 51%, 23%)
HSV	hsv(206, 68%, 35%)
CMYK	cmyk(67.8%, 28.9%, 0%, 64.7%)
CIE-LAB	lab(25.76, -3.45, -19.28)
CIE-LCH	lch(25.76, 19.58, 259.87°)
OKLab	oklab(35.83% -0.0275 -0.0542)
OKLCH	oklch(35.83% 0.061 243.1)
XYZ	xyz(4.1849, 4.6658, 10.3509)
Luminance	0.0467 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D405A #5A371D

analogous

#1D5A55 #1D405A #1D215A

triadic

#1D405A #5A1D40 #405A1D

tetradic

#1D405A #551D5A #5A371D #215A1D

square

#1D405A #551D5A #5A371D #215A1D

split-complementary

#1D405A #5A1D21 #5A551D

monochromatic

#071017 #0E1F2C #1D405A #2C6188 #3B82B7

Accessibility & contrast

On white

10.86

#1D405A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#1D405A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D405A

10.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D405A	#FFFFFF	#000000	##FFFFFF
##1D405A	1.00	10.86	1.93	10.86
#FFFFFF	10.86	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#34405B

Deuteranopia (green-blind)

#2C3A5A

Tritanopia (blue-blind)

#004649

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #1d405a;
/* rgb */ color: rgb(29, 64, 90);
/* oklch */ color: oklch(35.8% 0.061 243.1);

Tailwind

colors: {
  custom: {
    50: '#607488',
    500: '#1d405a',
    950: '#000000',
  },
}

SCSS

$custom: #1d405a;
$custom-light: #607488;
$custom-dark: #000000;

JSON

{
  "hex": "#1d405a",
  "rgb": {
    "r": 29,
    "g": 64,
    "b": 90
  },
  "hsl": {
    "h": 205.574,
    "s": 51.261,
    "l": 23.333
  },
  "oklch": {
    "l": 0.35827,
    "c": 0.0608,
    "h": 243.1
  },
  "luminance": 0.04666
}

Semantic roles & 50–950 ramp

primary

#1D405A

secondary

#8F6444

accent

#894DDB

background

#F5F7F8

surface

#EAEDF0

border

#C6C8CB

text

#05080B

muted

#797B7C

Preview Lab

Preview with #1D405A

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

Preview Lab → · Contrast checker → · Palette generator →