#155F7F#155F7F

#155F7F is a mid, moderate cyan. Relative luminance 0.099; OKLCH L 45.8% C 0.086 H 232.5°. Best body text is #FFFFFF at 7.06:1 contrast (WCAG AA passes).

Color values

HEX	#155F7F
RGB	rgb(21, 95, 127)
HSL	hsl(198, 72%, 29%)
HSV	hsv(198, 83%, 50%)
CMYK	cmyk(83.5%, 25.2%, 0%, 50.2%)
CIE-LAB	lab(37.62, -9.90, -24.10)
CIE-LCH	lch(37.62, 26.06, 247.67°)
OKLab	oklab(45.78% -0.0522 -0.068)
OKLCH	oklch(45.78% 0.086 232.5)
XYZ	xyz(8.2307, 9.8751, 21.5469)
Luminance	0.0988 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155F7F #7F3515

analogous

#157F6A #155F7F #152A7F

triadic

#155F7F #7F155F #5F7F15

tetradic

#155F7F #6A157F #7F3515 #2A7F15

square

#155F7F #6A157F #7F3515 #2A7F15

split-complementary

#155F7F #7F152A #7F6A15

monochromatic

#04141A #0C384A #155F7F #1E86B4 #31A9DD

Accessibility & contrast

On white

7.06

#155F7F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.98

#155F7F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155F7F

7.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155F7F	#FFFFFF	#000000	##FFFFFF
##155F7F	1.00	7.06	2.98	7.06
#FFFFFF	7.06	1.00	21.00	1.00
#000000	2.98	21.00	1.00	21.00
##FFFFFF	7.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F5E81

Deuteranopia (green-blind)

#41547F

Tritanopia (blue-blind)

#00686A

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #155f7f;
/* rgb */ color: rgb(21, 95, 127);
/* oklch */ color: oklch(45.8% 0.086 232.5);

Tailwind

colors: {
  custom: {
    50: '#668ca4',
    500: '#155f7f',
    950: '#000000',
  },
}

SCSS

$custom: #155f7f;
$custom-light: #668ca4;
$custom-dark: #000000;

JSON

{
  "hex": "#155f7f",
  "rgb": {
    "r": 21,
    "g": 95,
    "b": 127
  },
  "hsl": {
    "h": 198.113,
    "s": 71.622,
    "l": 29.02
  },
  "oklch": {
    "l": 0.4578,
    "c": 0.08571,
    "h": 232.5
  },
  "luminance": 0.09876
}

Semantic roles & 50–950 ramp

primary

#155F7F

secondary

#B4603C

accent

#7039EE

background

#F6F8FA

surface

#EBF0F4

border

#C6CBCE

text

#070C0F

muted

#7A7D7F

Preview Lab

Preview with #155F7F

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

Preview Lab → · Contrast checker → · Palette generator →