#155B5E#155B5E

#155B5E is a dark, moderate teal. Relative luminance 0.085; OKLCH L 43.1% C 0.066 H 199.3°. Best body text is #FFFFFF at 7.81:1 contrast (WCAG AA passes).

Color values

HEX	#155B5E
RGB	rgb(21, 91, 94)
HSL	hsl(182, 63%, 23%)
HSV	hsv(182, 78%, 37%)
CMYK	cmyk(77.7%, 3.2%, 0%, 63.1%)
CIE-LAB	lab(34.90, -19.55, -7.86)
CIE-LCH	lch(34.90, 21.07, 201.90°)
OKLab	oklab(43.14% -0.0623 -0.0218)
OKLCH	oklch(43.14% 0.066 199.3)
XYZ	xyz(6.0698, 8.4490, 11.8984)
Luminance	0.0845 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155B5E #5E1815

analogous

#155E3D #155B5E #15365E

triadic

#155B5E #5E155B #5B5E15

tetradic

#155B5E #3D155E #5E1815 #365E15

square

#155B5E #3D155E #5E1815 #365E15

split-complementary

#155B5E #5E1536 #5E3D15

monochromatic

#061819 #0A2B2C #155B5E #208B90 #2BBCC2

Accessibility & contrast

On white

7.81

#155B5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#155B5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155B5E

7.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155B5E	#FFFFFF	#000000	##FFFFFF
##155B5E	1.00	7.81	2.69	7.81
#FFFFFF	7.81	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#54575E

Deuteranopia (green-blind)

#494F5E

Tritanopia (blue-blind)

#005F5C

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #155b5e;
/* rgb */ color: rgb(21, 91, 94);
/* oklch */ color: oklch(43.1% 0.066 199.3);

Tailwind

colors: {
  custom: {
    50: '#60898b',
    500: '#155b5e',
    950: '#000000',
  },
}

SCSS

$custom: #155b5e;
$custom-light: #60898b;
$custom-dark: #000000;

JSON

{
  "hex": "#155b5e",
  "rgb": {
    "r": 21,
    "g": 91,
    "b": 94
  },
  "hsl": {
    "h": 182.466,
    "s": 63.478,
    "l": 22.549
  },
  "oklch": {
    "l": 0.4314,
    "c": 0.06605,
    "h": 199.3
  },
  "luminance": 0.0845
}

Semantic roles & 50–950 ramp

primary

#155B5E

secondary

#953D39

accent

#4841E7

background

#F6F8F8

surface

#EBF0F0

border

#C6CBCB

text

#050B0C

muted

#7A7C7D

Preview Lab

Preview with #155B5E

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

Preview Lab → · Contrast checker → · Palette generator →