#155A6E#155A6E

#155A6E is a dark, moderate cyan. Relative luminance 0.086; OKLCH L 43.6% C 0.073 H 222.1°. Best body text is #FFFFFF at 7.72:1 contrast (WCAG AA passes).

Color values

HEX	#155A6E
RGB	rgb(21, 90, 110)
HSL	hsl(193, 68%, 26%)
HSV	hsv(193, 81%, 43%)
CMYK	cmyk(80.9%, 18.2%, 0%, 56.9%)
CIE-LAB	lab(35.20, -13.32, -17.38)
CIE-LCH	lch(35.20, 21.90, 232.54°)
OKLab	oklab(43.59% -0.0539 -0.0487)
OKLCH	oklch(43.59% 0.073 222.1)
XYZ	xyz(6.7787, 8.5967, 16.0509)
Luminance	0.0860 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155A6E #6E2915

analogous

#156E55 #155A6E #152D6E

triadic

#155A6E #6E155A #5A6E15

tetradic

#155A6E #55156E #6E2915 #2D6E15

square

#155A6E #55156E #6E2915 #2D6E15

split-complementary

#155A6E #6E152D #6E5515

monochromatic

#05151A #0B303B #155A6E #1F84A1 #29AED5

Accessibility & contrast

On white

7.72

#155A6E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.72

#155A6E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155A6E

7.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155A6E	#FFFFFF	#000000	##FFFFFF
##155A6E	1.00	7.72	2.72	7.72
#FFFFFF	7.72	1.00	21.00	1.00
#000000	2.72	21.00	1.00	21.00
##FFFFFF	7.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E586F

Deuteranopia (green-blind)

#424F6E

Tritanopia (blue-blind)

#006060

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #155a6e;
/* rgb */ color: rgb(21, 90, 110);
/* oklch */ color: oklch(43.6% 0.073 222.1);

Tailwind

colors: {
  custom: {
    50: '#628897',
    500: '#155a6e',
    950: '#000000',
  },
}

SCSS

$custom: #155a6e;
$custom-light: #628897;
$custom-dark: #000000;

JSON

{
  "hex": "#155a6e",
  "rgb": {
    "r": 21,
    "g": 90,
    "b": 110
  },
  "hsl": {
    "h": 193.483,
    "s": 67.939,
    "l": 25.686
  },
  "oklch": {
    "l": 0.43588,
    "c": 0.07262,
    "h": 222.1
  },
  "luminance": 0.08598
}

Semantic roles & 50–950 ramp

primary

#155A6E

secondary

#A4523A

accent

#643DEB

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#060B0D

muted

#7A7C7E

Preview Lab

Preview with #155A6E

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

Preview Lab → · Contrast checker → · Palette generator →