#155A5E#155A5E

#155A5E is a dark, moderate teal. Relative luminance 0.083; OKLCH L 42.9% C 0.065 H 200.8°. Best body text is #FFFFFF at 7.91:1 contrast (WCAG AA passes).

Color values

HEX	#155A5E
RGB	rgb(21, 90, 94)
HSL	hsl(183, 63%, 23%)
HSV	hsv(183, 78%, 37%)
CMYK	cmyk(77.7%, 4.3%, 0%, 63.1%)
CIE-LAB	lab(34.56, -19.00, -8.37)
CIE-LCH	lch(34.56, 20.77, 203.78°)
OKLab	oklab(42.86% -0.0612 -0.0232)
OKLCH	oklch(42.86% 0.065 200.8)
XYZ	xyz(5.9849, 8.2792, 11.8701)
Luminance	0.0828 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155A5E #5E1915

analogous

#155E3E #155A5E #15355E

triadic

#155A5E #5E155A #5A5E15

tetradic

#155A5E #3E155E #5E1915 #355E15

square

#155A5E #3E155E #5E1915 #355E15

split-complementary

#155A5E #5E1535 #5E3E15

monochromatic

#061819 #0A2A2C #155A5E #208A90 #2BBAC2

Accessibility & contrast

On white

7.91

#155A5E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#155A5E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155A5E

7.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155A5E	#FFFFFF	#000000	##FFFFFF
##155A5E	1.00	7.91	2.66	7.91
#FFFFFF	7.91	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#53565E

Deuteranopia (green-blind)

#484E5E

Tritanopia (blue-blind)

#005E5B

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #155a5e;
/* rgb */ color: rgb(21, 90, 94);
/* oklch */ color: oklch(42.9% 0.065 200.8);

Tailwind

colors: {
  custom: {
    50: '#60898b',
    500: '#155a5e',
    950: '#000000',
  },
}

SCSS

$custom: #155a5e;
$custom-light: #60898b;
$custom-dark: #000000;

JSON

{
  "hex": "#155a5e",
  "rgb": {
    "r": 21,
    "g": 90,
    "b": 94
  },
  "hsl": {
    "h": 183.288,
    "s": 63.478,
    "l": 22.549
  },
  "oklch": {
    "l": 0.42862,
    "c": 0.06548,
    "h": 200.8
  },
  "luminance": 0.0828
}

Semantic roles & 50–950 ramp

primary

#155A5E

secondary

#953E39

accent

#4A41E7

background

#F6F8F8

surface

#EBF0F0

border

#C6CBCB

text

#050B0C

muted

#7A7C7D

Preview Lab

Preview with #155A5E

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

Preview Lab → · Contrast checker → · Palette generator →