#1B5968#1B5968

#1B5968 is a dark, moderate cyan. Relative luminance 0.084; OKLCH L 43.2% C 0.066 H 217.3°. Best body text is #FFFFFF at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#1B5968
RGB	rgb(27, 89, 104)
HSL	hsl(192, 59%, 26%)
HSV	hsv(192, 74%, 41%)
CMYK	cmyk(74%, 14.4%, 0%, 59.2%)
CIE-LAB	lab(34.76, -14.07, -14.31)
CIE-LCH	lch(34.76, 20.07, 225.48°)
OKLab	oklab(43.19% -0.0525 -0.0399)
OKLCH	oklch(43.19% 0.066 217.3)
XYZ	xyz(6.5220, 8.3765, 14.3671)
Luminance	0.0838 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5968 #682A1B

analogous

#1B6850 #1B5968 #1B3268

triadic

#1B5968 #681B59 #59681B

tetradic

#1B5968 #501B68 #682A1B #32681B

square

#1B5968 #501B68 #682A1B #32681B

split-complementary

#1B5968 #681B32 #68501B

monochromatic

#061518 #0E2F37 #1B5968 #288399 #34ACC9

Accessibility & contrast

On white

7.85

#1B5968 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#1B5968 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5968

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5968	#FFFFFF	#000000	##FFFFFF
##1B5968	1.00	7.85	2.68	7.85
#FFFFFF	7.85	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F5669

Deuteranopia (green-blind)

#444E68

Tritanopia (blue-blind)

#005E5E

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1b5968;
/* rgb */ color: rgb(27, 89, 104);
/* oklch */ color: oklch(43.2% 0.066 217.3);

Tailwind

colors: {
  custom: {
    50: '#638893',
    500: '#1b5968',
    950: '#000000',
  },
}

SCSS

$custom: #1b5968;
$custom-light: #638893;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5968",
  "rgb": {
    "r": 27,
    "g": 89,
    "b": 104
  },
  "hsl": {
    "h": 191.688,
    "s": 58.779,
    "l": 25.686
  },
  "oklch": {
    "l": 0.43193,
    "c": 0.06591,
    "h": 217.3
  },
  "luminance": 0.08377
}

Semantic roles & 50–950 ramp

primary

#1B5968

secondary

#9D5342

accent

#6446E2

background

#F6F8F9

surface

#EBEFF1

border

#C6CACB

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #1B5968

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

Preview Lab → · Contrast checker → · Palette generator →