#155E6E#155E6E

#155E6E is a dark, moderate cyan. Relative luminance 0.093; OKLCH L 44.7% C 0.072 H 216.3°. Best body text is #FFFFFF at 7.35:1 contrast (WCAG AA passes).

Color values

HEX	#155E6E
RGB	rgb(21, 94, 110)
HSL	hsl(191, 68%, 26%)
HSV	hsv(191, 81%, 43%)
CMYK	cmyk(80.9%, 14.5%, 0%, 56.9%)
CIE-LAB	lab(36.54, -15.62, -15.32)
CIE-LCH	lch(36.54, 21.89, 224.44°)
OKLab	oklab(44.67% -0.0582 -0.0428)
OKLCH	oklch(44.67% 0.072 216.3)
XYZ	xyz(7.1252, 9.2898, 16.1664)
Luminance	0.0929 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155E6E #6E2515

analogous

#156E51 #155E6E #15316E

triadic

#155E6E #6E155E #5E6E15

tetradic

#155E6E #51156E #6E2515 #316E15

square

#155E6E #51156E #6E2515 #316E15

split-complementary

#155E6E #6E1531 #6E5115

monochromatic

#05161A #0B323B #155E6E #1F8AA1 #29B6D5

Accessibility & contrast

On white

7.35

#155E6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#155E6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155E6E

7.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155E6E	#FFFFFF	#000000	##FFFFFF
##155E6E	1.00	7.35	2.86	7.35
#FFFFFF	7.35	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#535B6F

Deuteranopia (green-blind)

#47526E

Tritanopia (blue-blind)

#006463

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #155e6e;
/* rgb */ color: rgb(21, 94, 110);
/* oklch */ color: oklch(44.7% 0.072 216.3);

Tailwind

colors: {
  custom: {
    50: '#638b97',
    500: '#155e6e',
    950: '#000000',
  },
}

SCSS

$custom: #155e6e;
$custom-light: #638b97;
$custom-dark: #000000;

JSON

{
  "hex": "#155e6e",
  "rgb": {
    "r": 21,
    "g": 94,
    "b": 110
  },
  "hsl": {
    "h": 190.787,
    "s": 67.939,
    "l": 25.686
  },
  "oklch": {
    "l": 0.44666,
    "c": 0.07222,
    "h": 216.3
  },
  "luminance": 0.09291
}

Semantic roles & 50–950 ramp

primary

#155E6E

secondary

#A44D3A

accent

#5C3DEB

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#060C0D

muted

#7A7D7E

Preview Lab

Preview with #155E6E

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

Preview Lab → · Contrast checker → · Palette generator →