#1B596C#1B596C

#1B596C is a dark, moderate cyan. Relative luminance 0.085; OKLCH L 43.4% C 0.069 H 222.4°. Best body text is #FFFFFF at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#1B596C
RGB	rgb(27, 89, 108)
HSL	hsl(194, 60%, 26%)
HSV	hsv(194, 75%, 42%)
CMYK	cmyk(75%, 17.6%, 0%, 57.6%)
CIE-LAB	lab(34.92, -12.64, -16.55)
CIE-LCH	lch(34.92, 20.82, 232.62°)
OKLab	oklab(43.38% -0.0507 -0.0463)
OKLCH	oklch(43.38% 0.069 222.4)
XYZ	xyz(6.7300, 8.4597, 15.4626)
Luminance	0.0846 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B596C #6C2E1B

analogous

#1B6C57 #1B596C #1B316C

triadic

#1B596C #6C1B59 #596C1B

tetradic

#1B596C #571B6C #6C2E1B #316C1B

square

#1B596C #571B6C #6C2E1B #316C1B

split-complementary

#1B596C #6C1B31 #6C571B

monochromatic

#061418 #0F313B #1B596C #27819D #35A9CC

Accessibility & contrast

On white

7.80

#1B596C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#1B596C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B596C

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B596C	#FFFFFF	#000000	##FFFFFF
##1B596C	1.00	7.80	2.69	7.80
#FFFFFF	7.80	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E576D

Deuteranopia (green-blind)

#434F6C

Tritanopia (blue-blind)

#005F5F

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1b596c;
/* rgb */ color: rgb(27, 89, 108);
/* oklch */ color: oklch(43.4% 0.069 222.4);

Tailwind

colors: {
  custom: {
    50: '#648896',
    500: '#1b596c',
    950: '#000000',
  },
}

SCSS

$custom: #1b596c;
$custom-light: #648896;
$custom-dark: #000000;

JSON

{
  "hex": "#1b596c",
  "rgb": {
    "r": 27,
    "g": 89,
    "b": 108
  },
  "hsl": {
    "h": 194.074,
    "s": 60,
    "l": 26.471
  },
  "oklch": {
    "l": 0.43382,
    "c": 0.06865,
    "h": 222.4
  },
  "luminance": 0.0846
}

Semantic roles & 50–950 ramp

primary

#1B596C

secondary

#A15842

accent

#6A45E3

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #1B596C

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

Preview Lab → · Contrast checker → · Palette generator →