#1B576D#1B576D

#1B576D is a dark, moderate cyan. Relative luminance 0.082; OKLCH L 42.9% C 0.070 H 226.6°. Best body text is #FFFFFF at 7.98:1 contrast (WCAG AA passes).

Color values

HEX	#1B576D
RGB	rgb(27, 87, 109)
HSL	hsl(196, 60%, 27%)
HSV	hsv(196, 75%, 43%)
CMYK	cmyk(75.2%, 20.2%, 0%, 57.3%)
CIE-LAB	lab(34.30, -11.09, -18.13)
CIE-LCH	lch(34.30, 21.25, 238.54°)
OKLab	oklab(42.9% -0.0481 -0.0508)
OKLCH	oklch(42.9% 0.07 226.6)
XYZ	xyz(6.6194, 8.1528, 15.6898)
Luminance	0.0815 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B576D #6D311B

analogous

#1B6D5A #1B576D #1B2E6D

triadic

#1B576D #6D1B57 #576D1B

tetradic

#1B576D #5A1B6D #6D311B #2E6D1B

square

#1B576D #5A1B6D #6D311B #2E6D1B

split-complementary

#1B576D #6D1B2E #6D5A1B

monochromatic

#061419 #0F303C #1B576D #277E9E #35A4CD

Accessibility & contrast

On white

7.98

#1B576D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#1B576D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B576D

7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B576D	#FFFFFF	#000000	##FFFFFF
##1B576D	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)

#4B556E

Deuteranopia (green-blind)

#404D6D

Tritanopia (blue-blind)

#005D5E

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1b576d;
/* rgb */ color: rgb(27, 87, 109);
/* oklch */ color: oklch(42.9% 0.070 226.6);

Tailwind

colors: {
  custom: {
    50: '#648697',
    500: '#1b576d',
    950: '#000000',
  },
}

SCSS

$custom: #1b576d;
$custom-light: #648697;
$custom-dark: #000000;

JSON

{
  "hex": "#1b576d",
  "rgb": {
    "r": 27,
    "g": 87,
    "b": 109
  },
  "hsl": {
    "h": 196.098,
    "s": 60.294,
    "l": 26.667
  },
  "oklch": {
    "l": 0.42898,
    "c": 0.06994,
    "h": 226.6
  },
  "luminance": 0.08154
}

Semantic roles & 50–950 ramp

primary

#1B576D

secondary

#A25C42

accent

#6F44E3

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #1B576D

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

Preview Lab → · Contrast checker → · Palette generator →