#1B5073#1B5073

#1B5073 is a dark, moderate cyan. Relative luminance 0.072; OKLCH L 41.4% C 0.080 H 241.7°. Best body text is #FFFFFF at 8.60:1 contrast (WCAG AA passes).

Color values

HEX	#1B5073
RGB	rgb(27, 80, 115)
HSL	hsl(204, 62%, 28%)
HSV	hsv(204, 77%, 45%)
CMYK	cmyk(76.5%, 30.4%, 0%, 54.9%)
CIE-LAB	lab(32.27, -4.52, -25.03)
CIE-LCH	lch(32.27, 25.43, 259.77°)
OKLab	oklab(41.38% -0.0382 -0.0708)
OKLCH	oklch(41.38% 0.08 241.7)
XYZ	xyz(6.4140, 7.2074, 17.2695)
Luminance	0.0721 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5073 #733E1B

analogous

#1B736A #1B5073 #1B2473

triadic

#1B5073 #731B50 #50731B

tetradic

#1B5073 #6A1B73 #733E1B #24731B

square

#1B5073 #6A1B73 #733E1B #24731B

split-complementary

#1B5073 #731B24 #736A1B

monochromatic

#061119 #0F2E41 #1B5073 #2772A5 #3894D0

Accessibility & contrast

On white

8.60

#1B5073 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#1B5073 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5073

8.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5073	#FFFFFF	#000000	##FFFFFF
##1B5073	1.00	8.60	2.44	8.60
#FFFFFF	8.60	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#405175

Deuteranopia (green-blind)

#344872

Tritanopia (blue-blind)

#00595C

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #1b5073;
/* rgb */ color: rgb(27, 80, 115);
/* oklch */ color: oklch(41.4% 0.080 241.7);

Tailwind

colors: {
  custom: {
    50: '#65809b',
    500: '#1b5073',
    950: '#000000',
  },
}

SCSS

$custom: #1b5073;
$custom-light: #65809b;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5073",
  "rgb": {
    "r": 27,
    "g": 80,
    "b": 115
  },
  "hsl": {
    "h": 203.864,
    "s": 61.972,
    "l": 27.843
  },
  "oklch": {
    "l": 0.41381,
    "c": 0.08039,
    "h": 241.7
  },
  "luminance": 0.07208
}

Semantic roles & 50–950 ramp

primary

#1B5073

secondary

#A86B42

accent

#8343E5

background

#F6F7F9

surface

#EBEEF2

border

#C6C9CC

text

#060A0E

muted

#7A7C7E

Preview Lab

Preview with #1B5073

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

Preview Lab → · Contrast checker → · Palette generator →