#155F6E#155F6E

#155F6E is a dark, moderate cyan. Relative luminance 0.095; OKLCH L 44.9% C 0.072 H 214.9°. Best body text is #FFFFFF at 7.26:1 contrast (WCAG AA passes).

Color values

HEX	#155F6E
RGB	rgb(21, 95, 110)
HSL	hsl(190, 68%, 26%)
HSV	hsv(190, 81%, 43%)
CMYK	cmyk(80.9%, 13.6%, 0%, 56.9%)
CIE-LAB	lab(36.87, -16.19, -14.81)
CIE-LCH	lch(36.87, 21.94, 222.45°)
OKLab	oklab(44.94% -0.0592 -0.0413)
OKLCH	oklch(44.94% 0.072 214.9)
XYZ	xyz(7.2147, 9.4688, 16.1962)
Luminance	0.0947 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155F6E #6E2415

analogous

#156E50 #155F6E #15326E

triadic

#155F6E #6E155F #5F6E15

tetradic

#155F6E #50156E #6E2415 #326E15

square

#155F6E #50156E #6E2415 #326E15

split-complementary

#155F6E #6E1532 #6E5015

monochromatic

#05161A #0B333B #155F6E #1F8BA1 #29B8D5

Accessibility & contrast

On white

7.26

#155F6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.89

#155F6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155F6E

7.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155F6E	#FFFFFF	#000000	##FFFFFF
##155F6E	1.00	7.26	2.89	7.26
#FFFFFF	7.26	1.00	21.00	1.00
#000000	2.89	21.00	1.00	21.00
##FFFFFF	7.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#545C6F

Deuteranopia (green-blind)

#48536E

Tritanopia (blue-blind)

#006564

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #155f6e;
/* rgb */ color: rgb(21, 95, 110);
/* oklch */ color: oklch(44.9% 0.072 214.9);

Tailwind

colors: {
  custom: {
    50: '#638c97',
    500: '#155f6e',
    950: '#000000',
  },
}

SCSS

$custom: #155f6e;
$custom-light: #638c97;
$custom-dark: #000000;

JSON

{
  "hex": "#155f6e",
  "rgb": {
    "r": 21,
    "g": 95,
    "b": 110
  },
  "hsl": {
    "h": 190.112,
    "s": 67.939,
    "l": 25.686
  },
  "oklch": {
    "l": 0.44936,
    "c": 0.07225,
    "h": 214.9
  },
  "luminance": 0.0947
}

Semantic roles & 50–950 ramp

primary

#155F6E

secondary

#A44C3A

accent

#5A3DEB

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#060C0D

muted

#7A7D7E

Preview Lab

Preview with #155F6E

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

Preview Lab → · Contrast checker → · Palette generator →