#155E50#155E50

#155E50 is a dark, moderate teal. Relative luminance 0.087; OKLCH L 43.5% C 0.073 H 176.7°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#155E50
RGB	rgb(21, 94, 80)
HSL	hsl(168, 63%, 23%)
HSV	hsv(168, 78%, 37%)
CMYK	cmyk(77.7%, 0%, 14.9%, 63.1%)
CIE-LAB	lab(35.49, -25.53, 1.74)
CIE-LCH	lch(35.49, 25.59, 176.11°)
OKLab	oklab(43.47% -0.0729 0.0042)
OKLCH	oklch(43.47% 0.073 176.7)
XYZ	xyz(5.7592, 8.7433, 8.9720)
Luminance	0.0874 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155E50 #5E1523

analogous

#155E2B #155E50 #15485E

triadic

#155E50 #50155E #5E5015

tetradic

#155E50 #2B155E #5E1523 #485E15

square

#155E50 #2B155E #5E1523 #485E15

split-complementary

#155E50 #5E1548 #5E2B15

monochromatic

#061915 #0A2C25 #155E50 #20907B #2BC2A5

Accessibility & contrast

On white

7.64

#155E50 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#155E50 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155E50

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155E50	#FFFFFF	#000000	##FFFFFF
##155E50	1.00	7.64	2.75	7.64
#FFFFFF	7.64	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A584F

Deuteranopia (green-blind)

#505051

Tritanopia (blue-blind)

#005F5A

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #155e50;
/* rgb */ color: rgb(21, 94, 80);
/* oklch */ color: oklch(43.5% 0.073 176.7);

Tailwind

colors: {
  custom: {
    50: '#5f8c81',
    500: '#155e50',
    950: '#000000',
  },
}

SCSS

$custom: #155e50;
$custom-light: #5f8c81;
$custom-dark: #000000;

JSON

{
  "hex": "#155e50",
  "rgb": {
    "r": 21,
    "g": 94,
    "b": 80
  },
  "hsl": {
    "h": 168.493,
    "s": 63.478,
    "l": 22.549
  },
  "oklch": {
    "l": 0.43465,
    "c": 0.07303,
    "h": 176.7
  },
  "luminance": 0.08744
}

Semantic roles & 50–950 ramp

primary

#155E50

secondary

#95394B

accent

#4161E7

background

#F5F8F7

surface

#EAF0EE

border

#C6CBC9

text

#050C0A

muted

#797D7C

Preview Lab

Preview with #155E50

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

Preview Lab → · Contrast checker → · Palette generator →