#1B5964#1B5964

#1B5964 is a dark, moderate teal. Relative luminance 0.083; OKLCH L 43.0% C 0.064 H 211.7°. Best body text is #FFFFFF at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#1B5964
RGB	rgb(27, 89, 100)
HSL	hsl(189, 57%, 25%)
HSV	hsv(189, 73%, 39%)
CMYK	cmyk(73%, 11%, 0%, 60.8%)
CIE-LAB	lab(34.59, -15.48, -12.06)
CIE-LCH	lch(34.59, 19.62, 217.92°)
OKLab	oklab(43.01% -0.0543 -0.0335)
OKLCH	oklch(43.01% 0.064 211.7)
XYZ	xyz(6.3236, 8.2972, 13.3224)
Luminance	0.0830 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5964 #64261B

analogous

#1B644A #1B5964 #1B3564

triadic

#1B5964 #641B59 #59641B

tetradic

#1B5964 #4A1B64 #64261B #35641B

square

#1B5964 #4A1B64 #64261B #35641B

split-complementary

#1B5964 #641B35 #644A1B

monochromatic

#071518 #0E2E34 #1B5964 #288494 #35AFC4

Accessibility & contrast

On white

7.90

#1B5964 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#1B5964 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5964

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5964	#FFFFFF	#000000	##FFFFFF
##1B5964	1.00	7.90	2.66	7.90
#FFFFFF	7.90	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#505665

Deuteranopia (green-blind)

#464E64

Tritanopia (blue-blind)

#005E5C

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #1b5964;
/* rgb */ color: rgb(27, 89, 100);
/* oklch */ color: oklch(43.0% 0.064 211.7);

Tailwind

colors: {
  custom: {
    50: '#638890',
    500: '#1b5964',
    950: '#000000',
  },
}

SCSS

$custom: #1b5964;
$custom-light: #638890;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5964",
  "rgb": {
    "r": 27,
    "g": 89,
    "b": 100
  },
  "hsl": {
    "h": 189.041,
    "s": 57.48,
    "l": 24.902
  },
  "oklch": {
    "l": 0.4301,
    "c": 0.06379,
    "h": 211.7
  },
  "luminance": 0.08298
}

Semantic roles & 50–950 ramp

primary

#1B5964

secondary

#994F41

accent

#5E47E1

background

#F6F8F8

surface

#EBEFF0

border

#C6CACB

text

#060B0C

muted

#7A7C7D

Preview Lab

Preview with #1B5964

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

Preview Lab → · Contrast checker → · Palette generator →