#1B5A5D#1B5A5D

#1B5A5D is a dark, moderate teal. Relative luminance 0.083; OKLCH L 43.0% C 0.062 H 199.6°. Best body text is #FFFFFF at 7.87:1 contrast (WCAG AA passes).

Color values

HEX	#1B5A5D
RGB	rgb(27, 90, 93)
HSL	hsl(183, 55%, 24%)
HSV	hsv(183, 71%, 36%)
CMYK	cmyk(71%, 3.2%, 0%, 63.5%)
CIE-LAB	lab(34.67, -18.41, -7.56)
CIE-LCH	lch(34.67, 19.90, 202.33°)
OKLab	oklab(42.99% -0.0587 -0.021)
OKLCH	oklch(42.99% 0.062 199.6)
XYZ	xyz(6.0831, 8.3350, 11.6420)
Luminance	0.0834 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B5A5D #5D1E1B

analogous

#1B5D3F #1B5A5D #1B395D

triadic

#1B5A5D #5D1B5A #5A5D1B

tetradic

#1B5A5D #3F1B5D #5D1E1B #395D1B

square

#1B5A5D #3F1B5D #5D1E1B #395D1B

split-complementary

#1B5A5D #5D1B39 #5D3F1B

monochromatic

#071718 #0D2C2E #1B5A5D #29888C #37B6BC

Accessibility & contrast

On white

7.87

#1B5A5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#1B5A5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B5A5D

7.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B5A5D	#FFFFFF	#000000	##FFFFFF
##1B5A5D	1.00	7.87	2.67	7.87
#FFFFFF	7.87	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#53565D

Deuteranopia (green-blind)

#494E5D

Tritanopia (blue-blind)

#005D5B

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #1b5a5d;
/* rgb */ color: rgb(27, 90, 93);
/* oklch */ color: oklch(43.0% 0.062 199.6);

Tailwind

colors: {
  custom: {
    50: '#62898a',
    500: '#1b5a5d',
    950: '#000000',
  },
}

SCSS

$custom: #1b5a5d;
$custom-light: #62898a;
$custom-dark: #000000;

JSON

{
  "hex": "#1b5a5d",
  "rgb": {
    "r": 27,
    "g": 90,
    "b": 93
  },
  "hsl": {
    "h": 182.727,
    "s": 55,
    "l": 23.529
  },
  "oklch": {
    "l": 0.42985,
    "c": 0.06236,
    "h": 199.6
  },
  "luminance": 0.08336
}

Semantic roles & 50–950 ramp

primary

#1B5A5D

secondary

#934541

accent

#5049DE

background

#F6F8F8

surface

#EBF0F0

border

#C6CBCB

text

#060B0B

muted

#7A7C7C

Preview Lab

Preview with #1B5A5D

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

Preview Lab → · Contrast checker → · Palette generator →