#155D7A#155D7A

#155D7A is a dark, moderate cyan. Relative luminance 0.094; OKLCH L 45.0% C 0.082 H 230.5°. Best body text is #FFFFFF at 7.30:1 contrast (WCAG AA passes).

Color values

HEX	#155D7A
RGB	rgb(21, 93, 122)
HSL	hsl(197, 71%, 28%)
HSV	hsv(197, 83%, 48%)
CMYK	cmyk(82.8%, 23.8%, 0%, 52.2%)
CIE-LAB	lab(36.73, -10.60, -22.42)
CIE-LCH	lch(36.73, 24.80, 244.69°)
OKLab	oklab(44.99% -0.0521 -0.0631)
OKLCH	oklch(44.99% 0.082 230.5)
XYZ	xyz(7.7350, 9.3923, 19.8138)
Luminance	0.0939 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155D7A #7A3215

analogous

#157A64 #155D7A #152A7A

triadic

#155D7A #7A155D #5D7A15

tetradic

#155D7A #64157A #7A3215 #2A7A15

square

#155D7A #64157A #7A3215 #2A7A15

split-complementary

#155D7A #7A152A #7A6415

monochromatic

#04141A #0C3546 #155D7A #1E85AE #2EA9DB

Accessibility & contrast

On white

7.30

#155D7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#155D7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155D7A

7.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155D7A	#FFFFFF	#000000	##FFFFFF
##155D7A	1.00	7.30	2.88	7.30
#FFFFFF	7.30	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E5C7B

Deuteranopia (green-blind)

#41527A

Tritanopia (blue-blind)

#006567

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #155d7a;
/* rgb */ color: rgb(21, 93, 122);
/* oklch */ color: oklch(45.0% 0.082 230.5);

Tailwind

colors: {
  custom: {
    50: '#658ba0',
    500: '#155d7a',
    950: '#000000',
  },
}

SCSS

$custom: #155d7a;
$custom-light: #658ba0;
$custom-dark: #000000;

JSON

{
  "hex": "#155d7a",
  "rgb": {
    "r": 21,
    "g": 93,
    "b": 122
  },
  "hsl": {
    "h": 197.228,
    "s": 70.629,
    "l": 28.039
  },
  "oklch": {
    "l": 0.44994,
    "c": 0.08187,
    "h": 230.5
  },
  "luminance": 0.09393
}

Semantic roles & 50–950 ramp

primary

#155D7A

secondary

#AF5D3B

accent

#6E3AED

background

#F6F8F9

surface

#EBF0F2

border

#C6CBCC

text

#060B0E

muted

#7A7C7E

Preview Lab

Preview with #155D7A

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

Preview Lab → · Contrast checker → · Palette generator →