#1B5063#1B5063

#1B5063 is a dark, moderate cyan. Relative luminance 0.069; OKLCH L 40.5% C 0.063 H 225.5°. Best body text is #FFFFFF at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#1B5063
RGB	rgb(27, 80, 99)
HSL	hsl(196, 57%, 25%)
HSV	hsv(196, 73%, 39%)
CMYK	cmyk(72.7%, 19.2%, 0%, 61.2%)
CIE-LAB	lab(31.51, -10.55, -16.15)
CIE-LCH	lch(31.51, 19.29, 236.84°)
OKLab	oklab(40.52% -0.0443 -0.0452)
OKLCH	oklch(40.52% 0.063 225.5)
XYZ	xyz(5.5719, 6.8706, 12.8345)
Luminance	0.0687 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5063 #632E1B

analogous

#1B6352 #1B5063 #1B2C63

triadic

#1B5063 #631B50 #50631B

tetradic

#1B5063 #521B63 #632E1B #2C631B

square

#1B5063 #521B63 #632E1B #2C631B

split-complementary

#1B5063 #631B2C #63521B

monochromatic

#071318 #0E2933 #1B5063 #287793 #359EC3

Accessibility & contrast

On white

8.85

#1B5063 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#1B5063 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5063

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5063	#FFFFFF	#000000	##FFFFFF
##1B5063	1.00	8.85	2.37	8.85
#FFFFFF	8.85	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#464E64

Deuteranopia (green-blind)

#3C4763

Tritanopia (blue-blind)

#005656

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1b5063;
/* rgb */ color: rgb(27, 80, 99);
/* oklch */ color: oklch(40.5% 0.063 225.5);

Tailwind

colors: {
  custom: {
    50: '#62818f',
    500: '#1b5063',
    950: '#000000',
  },
}

SCSS

$custom: #1b5063;
$custom-light: #62818f;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5063",
  "rgb": {
    "r": 27,
    "g": 80,
    "b": 99
  },
  "hsl": {
    "h": 195.833,
    "s": 57.143,
    "l": 24.706
  },
  "oklch": {
    "l": 0.40521,
    "c": 0.0633,
    "h": 225.5
  },
  "luminance": 0.06871
}

Semantic roles & 50–950 ramp

primary

#1B5063

secondary

#985841

accent

#7047E0

background

#F6F7F8

surface

#EBEEF0

border

#C6C9CB

text

#060A0C

muted

#7A7C7D

Preview Lab

Preview with #1B5063

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

Preview Lab → · Contrast checker → · Palette generator →