#155F6B#155F6B

#155F6B is a dark, moderate teal. Relative luminance 0.094; OKLCH L 44.8% C 0.071 H 211.1°. Best body text is #FFFFFF at 7.29:1 contrast (WCAG AA passes).

Color values

HEX	#155F6B
RGB	rgb(21, 95, 107)
HSL	hsl(188, 67%, 25%)
HSV	hsv(188, 80%, 42%)
CMYK	cmyk(80.4%, 11.2%, 0%, 58%)
CIE-LAB	lab(36.75, -17.26, -13.14)
CIE-LCH	lch(36.75, 21.69, 217.29°)
OKLab	oklab(44.8% -0.0606 -0.0366)
OKLCH	oklch(44.8% 0.071 211.1)
XYZ	xyz(7.0542, 9.4045, 15.3505)
Luminance	0.0940 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155F6B #6B2115

analogous

#156B4C #155F6B #15346B

triadic

#155F6B #6B155F #5F6B15

tetradic

#155F6B #4C156B #6B2115 #346B15

square

#155F6B #4C156B #6B2115 #346B15

split-complementary

#155F6B #6B1534 #6B4C15

monochromatic

#05171A #0B3238 #155F6B #1F8C9E #29BAD1

Accessibility & contrast

On white

7.29

#155F6B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#155F6B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155F6B

7.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155F6B	#FFFFFF	#000000	##FFFFFF
##155F6B	1.00	7.29	2.88	7.29
#FFFFFF	7.29	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#555B6C

Deuteranopia (green-blind)

#4A536B

Tritanopia (blue-blind)

#006463

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #155f6b;
/* rgb */ color: rgb(21, 95, 107);
/* oklch */ color: oklch(44.8% 0.071 211.1);

Tailwind

colors: {
  custom: {
    50: '#638c95',
    500: '#155f6b',
    950: '#000000',
  },
}

SCSS

$custom: #155f6b;
$custom-light: #638c95;
$custom-dark: #000000;

JSON

{
  "hex": "#155f6b",
  "rgb": {
    "r": 21,
    "g": 95,
    "b": 107
  },
  "hsl": {
    "h": 188.372,
    "s": 67.188,
    "l": 25.098
  },
  "oklch": {
    "l": 0.448,
    "c": 0.0708,
    "h": 211.1
  },
  "luminance": 0.09405
}

Semantic roles & 50–950 ramp

primary

#155F6B

secondary

#A2493A

accent

#563EEA

background

#F6F8F9

surface

#EBF0F1

border

#C6CBCB

text

#060C0D

muted

#7A7D7E

Preview Lab

Preview with #155F6B

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

Preview Lab → · Contrast checker → · Palette generator →