#1B576B#1B576B

#1B576B is a dark, moderate cyan. Relative luminance 0.081; OKLCH L 42.8% C 0.068 H 224.2°. Best body text is #FFFFFF at 8.01:1 contrast (WCAG AA passes).

Color values

HEX	#1B576B
RGB	rgb(27, 87, 107)
HSL	hsl(195, 60%, 26%)
HSV	hsv(195, 75%, 42%)
CMYK	cmyk(74.8%, 18.7%, 0%, 58%)
CIE-LAB	lab(34.21, -11.82, -17.02)
CIE-LCH	lch(34.21, 20.72, 235.21°)
OKLab	oklab(42.8% -0.0489 -0.0476)
OKLCH	oklch(42.8% 0.068 224.2)
XYZ	xyz(6.5129, 8.1102, 15.1292)
Luminance	0.0811 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B576B #6B2F1B

analogous

#1B6B57 #1B576B #1B2F6B

triadic

#1B576B #6B1B57 #576B1B

tetradic

#1B576B #571B6B #6B2F1B #2F6B1B

square

#1B576B #571B6B #6B2F1B #2F6B1B

split-complementary

#1B576B #6B1B2F #6B571B

monochromatic

#061418 #0F2F3A #1B576B #277F9C #35A6CC

Accessibility & contrast

On white

8.01

#1B576B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#1B576B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B576B

8.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B576B	#FFFFFF	#000000	##FFFFFF
##1B576B	1.00	8.01	2.62	8.01
#FFFFFF	8.01	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C556C

Deuteranopia (green-blind)

#414D6B

Tritanopia (blue-blind)

#005D5D

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #1b576b;
/* rgb */ color: rgb(27, 87, 107);
/* oklch */ color: oklch(42.8% 0.068 224.2);

Tailwind

colors: {
  custom: {
    50: '#648695',
    500: '#1b576b',
    950: '#000000',
  },
}

SCSS

$custom: #1b576b;
$custom-light: #648695;
$custom-dark: #000000;

JSON

{
  "hex": "#1b576b",
  "rgb": {
    "r": 27,
    "g": 87,
    "b": 107
  },
  "hsl": {
    "h": 195,
    "s": 59.701,
    "l": 26.275
  },
  "oklch": {
    "l": 0.42798,
    "c": 0.06826,
    "h": 224.2
  },
  "luminance": 0.08111
}

Semantic roles & 50–950 ramp

primary

#1B576B

secondary

#A05942

accent

#6C45E3

background

#F6F8F9

surface

#EBEFF1

border

#C6CACB

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #1B576B

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

Preview Lab → · Contrast checker → · Palette generator →