#1D559A#1D559A

#1D559A is a mid, vivid cyan. Relative luminance 0.091; OKLCH L 45.2% C 0.127 H 255.8°. Best body text is #FFFFFF at 7.45:1 contrast (WCAG AA passes).

Color values

HEX	#1D559A
RGB	rgb(29, 85, 154)
HSL	hsl(213, 68%, 36%)
HSV	hsv(213, 81%, 60%)
CMYK	cmyk(81.2%, 44.8%, 0%, 39.6%)
CIE-LAB	lab(36.16, 7.92, -42.79)
CIE-LCH	lch(36.16, 43.52, 280.49°)
OKLab	oklab(45.17% -0.0311 -0.1227)
OKLCH	oklch(45.17% 0.127 255.8)
XYZ	xyz(9.5858, 9.0902, 31.8149)
Luminance	0.0909 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D559A #9A621D

analogous

#1D939A #1D559A #231D9A

triadic

#1D559A #9A1D55 #559A1D

tetradic

#1D559A #9A1D93 #9A621D #1D9A23

square

#1D559A #9A1D93 #9A621D #1D9A23

split-complementary

#1D559A #9A231D #939A1D

monochromatic

#0A1C33 #133966 #1D559A #2771CE #5391DF

Accessibility & contrast

On white

7.45

#1D559A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.82

#1D559A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D559A

7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D559A	#FFFFFF	#000000	##FFFFFF
##1D559A	1.00	7.45	2.82	7.45
#FFFFFF	7.45	1.00	21.00	1.00
#000000	2.82	21.00	1.00	21.00
##FFFFFF	7.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#315B9D

Deuteranopia (green-blind)

#185099

Tritanopia (blue-blind)

#006570

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #1d559a;
/* rgb */ color: rgb(29, 85, 154);
/* oklch */ color: oklch(45.2% 0.127 255.8);

Tailwind

colors: {
  custom: {
    50: '#6e84b8',
    500: '#1d559a',
    950: '#000000',
  },
}

SCSS

$custom: #1d559a;
$custom-light: #6e84b8;
$custom-dark: #000000;

JSON

{
  "hex": "#1d559a",
  "rgb": {
    "r": 29,
    "g": 85,
    "b": 154
  },
  "hsl": {
    "h": 213.12,
    "s": 68.306,
    "l": 35.882
  },
  "oklch": {
    "l": 0.45172,
    "c": 0.12653,
    "h": 255.8
  },
  "luminance": 0.09091
}

Semantic roles & 50–950 ramp

primary

#1D559A

secondary

#C28F51

accent

#9D3DEB

background

#F7F8FB

surface

#EDEFF6

border

#C8CAD0

text

#080A11

muted

#7B7C80

Preview Lab

Preview with #1D559A

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

Preview Lab → · Contrast checker → · Palette generator →