#155E5A#155E5A

#155E5A is a dark, moderate teal. Relative luminance 0.089; OKLCH L 43.8% C 0.069 H 189.5°. Best body text is #FFFFFF at 7.55:1 contrast (WCAG AA passes).

Color values

HEX	#155E5A
RGB	rgb(21, 94, 90)
HSL	hsl(177, 63%, 23%)
HSV	hsv(177, 78%, 37%)
CMYK	cmyk(77.7%, 0%, 4.3%, 63.1%)
CIE-LAB	lab(35.80, -22.45, -4.03)
CIE-LCH	lch(35.80, 22.81, 190.17°)
OKLab	oklab(43.82% -0.0677 -0.0113)
OKLCH	oklch(43.82% 0.069 189.5)
XYZ	xyz(6.1566, 8.9023, 11.0647)
Luminance	0.0890 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155E5A #5E1519

analogous

#155E35 #155E5A #153E5E

triadic

#155E5A #5A155E #5E5A15

tetradic

#155E5A #35155E #5E1519 #3E5E15

square

#155E5A #35155E #5E1519 #3E5E15

split-complementary

#155E5A #5E153E #5E3515

monochromatic

#061918 #0A2C2A #155E5A #20908A #2BC2BA

Accessibility & contrast

On white

7.55

#155E5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#155E5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155E5A

7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155E5A	#FFFFFF	#000000	##FFFFFF
##155E5A	1.00	7.55	2.78	7.55
#FFFFFF	7.55	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58595A

Deuteranopia (green-blind)

#4E515B

Tritanopia (blue-blind)

#00615D

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #155e5a;
/* rgb */ color: rgb(21, 94, 90);
/* oklch */ color: oklch(43.8% 0.069 189.5);

Tailwind

colors: {
  custom: {
    50: '#608c88',
    500: '#155e5a',
    950: '#000000',
  },
}

SCSS

$custom: #155e5a;
$custom-light: #608c88;
$custom-dark: #000000;

JSON

{
  "hex": "#155e5a",
  "rgb": {
    "r": 21,
    "g": 94,
    "b": 90
  },
  "hsl": {
    "h": 176.712,
    "s": 63.478,
    "l": 22.549
  },
  "oklch": {
    "l": 0.43821,
    "c": 0.06864,
    "h": 189.5
  },
  "luminance": 0.08903
}

Semantic roles & 50–950 ramp

primary

#155E5A

secondary

#95393E

accent

#414AE7

background

#F6F8F8

surface

#EBF0EF

border

#C6CBCA

text

#050C0B

muted

#7A7D7C

Preview Lab

Preview with #155E5A

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

Preview Lab → · Contrast checker → · Palette generator →