#1B515A#1B515A

#1B515A is a dark, muted teal. Relative luminance 0.069; OKLCH L 40.4% C 0.057 H 210.5°. Best body text is #FFFFFF at 8.86:1 contrast (WCAG AA passes).

Color values

HEX	#1B515A
RGB	rgb(27, 81, 90)
HSL	hsl(189, 54%, 23%)
HSV	hsv(189, 70%, 35%)
CMYK	cmyk(70%, 10%, 0%, 64.7%)
CIE-LAB	lab(31.48, -14.35, -10.49)
CIE-LCH	lch(31.48, 17.78, 216.17°)
OKLab	oklab(40.37% -0.0495 -0.0291)
OKLCH	oklch(40.37% 0.057 210.5)
XYZ	xyz(5.2391, 6.8555, 10.7180)
Luminance	0.0686 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B515A #5A241B

analogous

#1B5A43 #1B515A #1B325A

triadic

#1B515A #5A1B51 #515A1B

tetradic

#1B515A #431B5A #5A241B #325A1B

square

#1B515A #431B5A #5A241B #325A1B

split-complementary

#1B515A #5A1B32 #5A431B

monochromatic

#071518 #0D272B #1B515A #297B89 #37A6B8

Accessibility & contrast

On white

8.86

#1B515A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#1B515A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B515A

8.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B515A	#FFFFFF	#000000	##FFFFFF
##1B515A	1.00	8.86	2.37	8.86
#FFFFFF	8.86	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#494E5B

Deuteranopia (green-blind)

#40475A

Tritanopia (blue-blind)

#005554

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #1b515a;
/* rgb */ color: rgb(27, 81, 90);
/* oklch */ color: oklch(40.4% 0.057 210.5);

Tailwind

colors: {
  custom: {
    50: '#608288',
    500: '#1b515a',
    950: '#000000',
  },
}

SCSS

$custom: #1b515a;
$custom-light: #608288;
$custom-dark: #000000;

JSON

{
  "hex": "#1b515a",
  "rgb": {
    "r": 27,
    "g": 81,
    "b": 90
  },
  "hsl": {
    "h": 188.571,
    "s": 53.846,
    "l": 22.941
  },
  "oklch": {
    "l": 0.40369,
    "c": 0.05747,
    "h": 210.5
  },
  "luminance": 0.06856
}

Semantic roles & 50–950 ramp

primary

#1B515A

secondary

#904C41

accent

#604BDD

background

#F6F7F8

surface

#EBEEEF

border

#C6C9CA

text

#050A0B

muted

#7A7C7C

Preview Lab

Preview with #1B515A

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

Preview Lab → · Contrast checker → · Palette generator →