#1B596D#1B596D

#1B596D is a dark, moderate cyan. Relative luminance 0.085; OKLCH L 43.4% C 0.069 H 223.6°. Best body text is #FFFFFF at 7.79:1 contrast (WCAG AA passes).

Color values

HEX	#1B596D
RGB	rgb(27, 89, 109)
HSL	hsl(195, 60%, 27%)
HSV	hsv(195, 75%, 43%)
CMYK	cmyk(75.2%, 18.3%, 0%, 57.3%)
CIE-LAB	lab(34.97, -12.28, -17.10)
CIE-LCH	lch(34.97, 21.05, 234.33°)
OKLab	oklab(43.43% -0.0503 -0.0478)
OKLCH	oklch(43.43% 0.069 223.6)
XYZ	xyz(6.7836, 8.4811, 15.7445)
Luminance	0.0848 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B596D #6D2F1B

analogous

#1B6D58 #1B596D #1B306D

triadic

#1B596D #6D1B59 #596D1B

tetradic

#1B596D #581B6D #6D2F1B #306D1B

square

#1B596D #581B6D #6D2F1B #306D1B

split-complementary

#1B596D #6D1B30 #6D581B

monochromatic

#061419 #0F313C #1B596D #27819E #35A8CD

Accessibility & contrast

On white

7.79

#1B596D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#1B596D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B596D

7.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B596D	#FFFFFF	#000000	##FFFFFF
##1B596D	1.00	7.79	2.70	7.79
#FFFFFF	7.79	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E576E

Deuteranopia (green-blind)

#424F6D

Tritanopia (blue-blind)

#005F5F

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1b596d;
/* rgb */ color: rgb(27, 89, 109);
/* oklch */ color: oklch(43.4% 0.069 223.6);

Tailwind

colors: {
  custom: {
    50: '#648897',
    500: '#1b596d',
    950: '#000000',
  },
}

SCSS

$custom: #1b596d;
$custom-light: #648897;
$custom-dark: #000000;

JSON

{
  "hex": "#1b596d",
  "rgb": {
    "r": 27,
    "g": 89,
    "b": 109
  },
  "hsl": {
    "h": 194.634,
    "s": 60.294,
    "l": 26.667
  },
  "oklch": {
    "l": 0.43431,
    "c": 0.06942,
    "h": 223.6
  },
  "luminance": 0.08482
}

Semantic roles & 50–950 ramp

primary

#1B596D

secondary

#A25942

accent

#6B44E3

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #1B596D

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

Preview Lab → · Contrast checker → · Palette generator →