#1B567B#1B567B

#1B567B is a dark, moderate cyan. Relative luminance 0.083; OKLCH L 43.4% C 0.085 H 240.7°. Best body text is #FFFFFF at 7.88:1 contrast (WCAG AA passes).

Color values

HEX	#1B567B
RGB	rgb(27, 86, 123)
HSL	hsl(203, 64%, 29%)
HSV	hsv(203, 78%, 48%)
CMYK	cmyk(78%, 30.1%, 0%, 51.8%)
CIE-LAB	lab(34.64, -5.21, -26.30)
CIE-LCH	lch(34.64, 26.81, 258.80°)
OKLab	oklab(43.39% -0.0417 -0.0744)
OKLCH	oklch(43.39% 0.085 240.7)
XYZ	xyz(7.3535, 8.3178, 19.9530)
Luminance	0.0832 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B567B #7B401B

analogous

#1B7B70 #1B567B #1B267B

triadic

#1B567B #7B1B56 #567B1B

tetradic

#1B567B #701B7B #7B401B #267B1B

square

#1B567B #701B7B #7B401B #267B1B

split-complementary

#1B567B #7B1B26 #7B701B

monochromatic

#061219 #103349 #1B567B #2679AD #3C9AD4

Accessibility & contrast

On white

7.88

#1B567B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#1B567B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B567B

7.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B567B	#FFFFFF	#000000	##FFFFFF
##1B567B	1.00	7.88	2.66	7.88
#FFFFFF	7.88	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#45567D

Deuteranopia (green-blind)

#384D7A

Tritanopia (blue-blind)

#005F63

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1b567b;
/* rgb */ color: rgb(27, 86, 123);
/* oklch */ color: oklch(43.4% 0.085 240.7);

Tailwind

colors: {
  custom: {
    50: '#6685a1',
    500: '#1b567b',
    950: '#000000',
  },
}

SCSS

$custom: #1b567b;
$custom-light: #6685a1;
$custom-dark: #000000;

JSON

{
  "hex": "#1b567b",
  "rgb": {
    "r": 27,
    "g": 86,
    "b": 123
  },
  "hsl": {
    "h": 203.125,
    "s": 64,
    "l": 29.412
  },
  "oklch": {
    "l": 0.43385,
    "c": 0.08526,
    "h": 240.7
  },
  "luminance": 0.08319
}

Semantic roles & 50–950 ramp

primary

#1B567B

secondary

#AF6C43

accent

#8141E7

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#070B0F

muted

#7A7C7E

Preview Lab

Preview with #1B567B

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

Preview Lab → · Contrast checker → · Palette generator →