#1B5D64#1B5D64

#1B5D64 is a dark, moderate teal. Relative luminance 0.090; OKLCH L 44.1% C 0.065 H 205.3°. Best body text is #FFFFFF at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#1B5D64
RGB	rgb(27, 93, 100)
HSL	hsl(186, 57%, 25%)
HSV	hsv(186, 73%, 39%)
CMYK	cmyk(73%, 7%, 0%, 60.8%)
CIE-LAB	lab(35.95, -17.72, -10.01)
CIE-LCH	lch(35.95, 20.35, 209.45°)
OKLab	oklab(44.1% -0.0588 -0.0278)
OKLCH	oklch(44.1% 0.065 205.3)
XYZ	xyz(6.6656, 8.9811, 13.4363)
Luminance	0.0898 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5D64 #64221B

analogous

#1B6446 #1B5D64 #1B3964

triadic

#1B5D64 #641B5D #5D641B

tetradic

#1B5D64 #461B64 #64221B #39641B

square

#1B5D64 #461B64 #64221B #39641B

split-complementary

#1B5D64 #641B39 #64461B

monochromatic

#071618 #0E3034 #1B5D64 #288A94 #35B7C4

Accessibility & contrast

On white

7.51

#1B5D64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#1B5D64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5D64

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5D64	#FFFFFF	#000000	##FFFFFF
##1B5D64	1.00	7.51	2.80	7.51
#FFFFFF	7.51	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#555964

Deuteranopia (green-blind)

#4A5164

Tritanopia (blue-blind)

#00615F

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #1b5d64;
/* rgb */ color: rgb(27, 93, 100);
/* oklch */ color: oklch(44.1% 0.065 205.3);

Tailwind

colors: {
  custom: {
    50: '#638b90',
    500: '#1b5d64',
    950: '#000000',
  },
}

SCSS

$custom: #1b5d64;
$custom-light: #638b90;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5d64",
  "rgb": {
    "r": 27,
    "g": 93,
    "b": 100
  },
  "hsl": {
    "h": 185.753,
    "s": 57.48,
    "l": 24.902
  },
  "oklch": {
    "l": 0.44102,
    "c": 0.06507,
    "h": 205.3
  },
  "luminance": 0.08982
}

Semantic roles & 50–950 ramp

primary

#1B5D64

secondary

#994A41

accent

#5647E1

background

#F6F8F8

surface

#EBF0F0

border

#C6CBCB

text

#060C0C

muted

#7A7D7D

Preview Lab

Preview with #1B5D64

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

Preview Lab → · Contrast checker → · Palette generator →