#1D557A#1D557A

#1D557A is a dark, moderate cyan. Relative luminance 0.082; OKLCH L 43.1% C 0.084 H 241.7°. Best body text is #FFFFFF at 7.98:1 contrast (WCAG AA passes).

Color values

HEX	#1D557A
RGB	rgb(29, 85, 122)
HSL	hsl(204, 62%, 30%)
HSV	hsv(204, 76%, 48%)
CMYK	cmyk(76.2%, 30.3%, 0%, 52.2%)
CIE-LAB	lab(34.32, -4.68, -26.17)
CIE-LCH	lch(34.32, 26.59, 259.86°)
OKLab	oklab(43.13% -0.0398 -0.074)
OKLCH	oklch(43.13% 0.084 241.7)
XYZ	xyz(7.2667, 8.1625, 19.6011)
Luminance	0.0816 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1D557A #7A421D

analogous

#1D7A71 #1D557A #1D277A

triadic

#1D557A #7A1D55 #557A1D

tetradic

#1D557A #711D7A #7A421D #277A1D

square

#1D557A #711D7A #7A421D #277A1D

split-complementary

#1D557A #7A1D27 #7A711D

monochromatic

#061119 #113349 #1D557A #2977AB #4098D2

Accessibility & contrast

On white

7.98

#1D557A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#1D557A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1D557A

7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1D557A	#FFFFFF	#000000	##FFFFFF
##1D557A	1.00	7.98	2.63	7.98
#FFFFFF	7.98	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#44567C

Deuteranopia (green-blind)

#374D79

Tritanopia (blue-blind)

#005E62

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1d557a;
/* rgb */ color: rgb(29, 85, 122);
/* oklch */ color: oklch(43.1% 0.084 241.7);

Tailwind

colors: {
  custom: {
    50: '#6784a0',
    500: '#1d557a',
    950: '#000000',
  },
}

SCSS

$custom: #1d557a;
$custom-light: #6784a0;
$custom-dark: #000000;

JSON

{
  "hex": "#1d557a",
  "rgb": {
    "r": 29,
    "g": 85,
    "b": 122
  },
  "hsl": {
    "h": 203.871,
    "s": 61.589,
    "l": 29.608
  },
  "oklch": {
    "l": 0.43134,
    "c": 0.08404,
    "h": 241.7
  },
  "luminance": 0.08163
}

Semantic roles & 50–950 ramp

primary

#1D557A

secondary

#AE6F45

accent

#8343E5

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#070A0E

muted

#7A7C7E

Preview Lab

Preview with #1D557A

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

Preview Lab → · Contrast checker → · Palette generator →