#1B5374#1B5374

#1B5374 is a dark, moderate cyan. Relative luminance 0.077; OKLCH L 42.2% C 0.079 H 238.9°. Best body text is #FFFFFF at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#1B5374
RGB	rgb(27, 83, 116)
HSL	hsl(202, 62%, 28%)
HSV	hsv(202, 77%, 45%)
CMYK	cmyk(76.7%, 28.4%, 0%, 54.5%)
CIE-LAB	lab(33.31, -6.02, -24.04)
CIE-LCH	lch(33.31, 24.78, 255.94°)
OKLab	oklab(42.22% -0.041 -0.0678)
OKLCH	oklch(42.22% 0.079 238.9)
XYZ	xyz(6.6964, 7.6797, 17.6490)
Luminance	0.0768 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5374 #743C1B

analogous

#1B7468 #1B5374 #1B2674

triadic

#1B5374 #741B53 #53741B

tetradic

#1B5374 #681B74 #743C1B #26741B

square

#1B5374 #681B74 #743C1B #26741B

split-complementary

#1B5374 #741B26 #74681B

monochromatic

#061219 #0F2F42 #1B5374 #2777A6 #3998D1

Accessibility & contrast

On white

8.28

#1B5374 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#1B5374 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5374

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5374	#FFFFFF	#000000	##FFFFFF
##1B5374	1.00	8.28	2.54	8.28
#FFFFFF	8.28	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#435376

Deuteranopia (green-blind)

#374B73

Tritanopia (blue-blind)

#005B5E

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #1b5374;
/* rgb */ color: rgb(27, 83, 116);
/* oklch */ color: oklch(42.2% 0.079 238.9);

Tailwind

colors: {
  custom: {
    50: '#65839c',
    500: '#1b5374',
    950: '#000000',
  },
}

SCSS

$custom: #1b5374;
$custom-light: #65839c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5374",
  "rgb": {
    "r": 27,
    "g": 83,
    "b": 116
  },
  "hsl": {
    "h": 202.247,
    "s": 62.238,
    "l": 28.039
  },
  "oklch": {
    "l": 0.42215,
    "c": 0.07928,
    "h": 238.9
  },
  "luminance": 0.0768
}

Semantic roles & 50–950 ramp

primary

#1B5374

secondary

#A96842

accent

#7F42E5

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060A0E

muted

#7A7C7E

Preview Lab

Preview with #1B5374

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

Preview Lab → · Contrast checker → · Palette generator →