#1B576A#1B576A

#1B576A is a dark, moderate cyan. Relative luminance 0.081; OKLCH L 42.7% C 0.067 H 223.0°. Best body text is #FFFFFF at 8.02:1 contrast (WCAG AA passes).

Color values

HEX	#1B576A
RGB	rgb(27, 87, 106)
HSL	hsl(194, 59%, 26%)
HSV	hsv(194, 75%, 42%)
CMYK	cmyk(74.5%, 17.9%, 0%, 58.4%)
CIE-LAB	lab(34.17, -12.19, -16.46)
CIE-LCH	lch(34.17, 20.48, 233.48°)
OKLab	oklab(42.75% -0.0493 -0.046)
OKLCH	oklch(42.75% 0.067 223)
XYZ	xyz(6.4606, 8.0893, 14.8538)
Luminance	0.0809 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B576A #6A2E1B

analogous

#1B6A55 #1B576A #1B2F6A

triadic

#1B576A #6A1B57 #576A1B

tetradic

#1B576A #551B6A #6A2E1B #2F6A1B

square

#1B576A #551B6A #6A2E1B #2F6A1B

split-complementary

#1B576A #6A1B2F #6A551B

monochromatic

#061418 #0F2F39 #1B576A #277F9B #34A7CB

Accessibility & contrast

On white

8.02

#1B576A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#1B576A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B576A

8.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B576A	#FFFFFF	#000000	##FFFFFF
##1B576A	1.00	8.02	2.62	8.02
#FFFFFF	8.02	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C556B

Deuteranopia (green-blind)

#414D6A

Tritanopia (blue-blind)

#005D5D

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1b576a;
/* rgb */ color: rgb(27, 87, 106);
/* oklch */ color: oklch(42.7% 0.067 223.0);

Tailwind

colors: {
  custom: {
    50: '#638694',
    500: '#1b576a',
    950: '#000000',
  },
}

SCSS

$custom: #1b576a;
$custom-light: #638694;
$custom-dark: #000000;

JSON

{
  "hex": "#1b576a",
  "rgb": {
    "r": 27,
    "g": 87,
    "b": 106
  },
  "hsl": {
    "h": 194.43,
    "s": 59.398,
    "l": 26.078
  },
  "oklch": {
    "l": 0.42749,
    "c": 0.06747,
    "h": 223
  },
  "luminance": 0.0809
}

Semantic roles & 50–950 ramp

primary

#1B576A

secondary

#9F5842

accent

#6B45E3

background

#F6F8F9

surface

#EBEFF1

border

#C6CACB

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #1B576A

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

Preview Lab → · Contrast checker → · Palette generator →