#1D557E#1D557E

#1D557E is a dark, moderate cyan. Relative luminance 0.083; OKLCH L 43.4% C 0.089 H 244.4°. Best body text is #FFFFFF at 7.92:1 contrast (WCAG AA passes).

Color values

HEX	#1D557E
RGB	rgb(29, 85, 126)
HSL	hsl(205, 63%, 30%)
HSV	hsv(205, 77%, 49%)
CMYK	cmyk(77%, 32.5%, 0%, 50.6%)
CIE-LAB	lab(34.53, -3.14, -28.32)
CIE-LCH	lch(34.53, 28.49, 263.67°)
OKLab	oklab(43.37% -0.0385 -0.0802)
OKLCH	oklch(43.37% 0.089 244.4)
XYZ	xyz(7.5196, 8.2637, 20.9334)
Luminance	0.0827 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D557E #7E461D

analogous

#1D7E76 #1D557E #1D247E

triadic

#1D557E #7E1D55 #557E1D

tetradic

#1D557E #761D7E #7E461D #247E1D

square

#1D557E #761D7E #7E461D #247E1D

split-complementary

#1D557E #7E1D24 #7E761D

monochromatic

#06121B #12334C #1D557E #2877B0 #4296D3

Accessibility & contrast

On white

7.92

#1D557E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#1D557E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D557E

7.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D557E	#FFFFFF	#000000	##FFFFFF
##1D557E	1.00	7.92	2.65	7.92
#FFFFFF	7.92	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#425680

Deuteranopia (green-blind)

#354D7D

Tritanopia (blue-blind)

#005F64

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1d557e;
/* rgb */ color: rgb(29, 85, 126);
/* oklch */ color: oklch(43.4% 0.089 244.4);

Tailwind

colors: {
  custom: {
    50: '#6884a3',
    500: '#1d557e',
    950: '#000000',
  },
}

SCSS

$custom: #1d557e;
$custom-light: #6884a3;
$custom-dark: #000000;

JSON

{
  "hex": "#1d557e",
  "rgb": {
    "r": 29,
    "g": 85,
    "b": 126
  },
  "hsl": {
    "h": 205.361,
    "s": 62.581,
    "l": 30.392
  },
  "oklch": {
    "l": 0.43366,
    "c": 0.08901,
    "h": 244.4
  },
  "luminance": 0.08265
}

Semantic roles & 50–950 ramp

primary

#1D557E

secondary

#B17345

accent

#8742E6

background

#F6F8FA

surface

#EBEFF4

border

#C6CACE

text

#070A0F

muted

#7A7C7F

Preview Lab

Preview with #1D557E

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

Preview Lab → · Contrast checker → · Palette generator →