#1D556E#1D556E

#1D556E is a dark, moderate cyan. Relative luminance 0.079; OKLCH L 42.5% C 0.071 H 231.2°. Best body text is #FFFFFF at 8.15:1 contrast (WCAG AA passes).

Color values

HEX	#1D556E
RGB	rgb(29, 85, 110)
HSL	hsl(199, 58%, 27%)
HSV	hsv(199, 74%, 43%)
CMYK	cmyk(73.6%, 22.7%, 0%, 56.9%)
CIE-LAB	lab(33.74, -9.21, -19.62)
CIE-LCH	lch(33.74, 21.67, 244.86°)
OKLab	oklab(42.48% -0.0443 -0.055)
OKLCH	oklch(42.48% 0.071 231.2)
XYZ	xyz(6.5685, 7.8833, 15.9243)
Luminance	0.0788 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D556E #6E361D

analogous

#1D6E5F #1D556E #1D2C6E

triadic

#1D556E #6E1D55 #556E1D

tetradic

#1D556E #5F1D6E #6E361D #2C6E1D

square

#1D556E #5F1D6E #6E361D #2C6E1D

split-complementary

#1D556E #6E1D2C #6E5F1D

monochromatic

#061318 #10303E #1D556E #2A7A9E #3A9ECB

Accessibility & contrast

On white

8.15

#1D556E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#1D556E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D556E

8.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D556E	#FFFFFF	#000000	##FFFFFF
##1D556E	1.00	8.15	2.58	8.15
#FFFFFF	8.15	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#48546F

Deuteranopia (green-blind)

#3D4C6E

Tritanopia (blue-blind)

#005C5D

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #1d556e;
/* rgb */ color: rgb(29, 85, 110);
/* oklch */ color: oklch(42.5% 0.071 231.2);

Tailwind

colors: {
  custom: {
    50: '#658497',
    500: '#1d556e',
    950: '#000000',
  },
}

SCSS

$custom: #1d556e;
$custom-light: #658497;
$custom-dark: #000000;

JSON

{
  "hex": "#1d556e",
  "rgb": {
    "r": 29,
    "g": 85,
    "b": 110
  },
  "hsl": {
    "h": 198.519,
    "s": 58.273,
    "l": 27.255
  },
  "oklch": {
    "l": 0.42481,
    "c": 0.07065,
    "h": 231.2
  },
  "luminance": 0.07884
}

Semantic roles & 50–950 ramp

primary

#1D556E

secondary

#A26144

accent

#7646E1

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #1D556E

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

Preview Lab → · Contrast checker → · Palette generator →