#155A7C#155A7C

#155A7C is a dark, moderate cyan. Relative luminance 0.089; OKLCH L 44.3% C 0.086 H 235.7°. Best body text is #FFFFFF at 7.54:1 contrast (WCAG AA passes).

Color values

HEX	#155A7C
RGB	rgb(21, 90, 124)
HSL	hsl(200, 71%, 28%)
HSV	hsv(200, 83%, 49%)
CMYK	cmyk(83.1%, 27.4%, 0%, 51.4%)
CIE-LAB	lab(35.84, -8.03, -25.04)
CIE-LCH	lch(35.84, 26.29, 252.22°)
OKLab	oklab(44.32% -0.0483 -0.0707)
OKLCH	oklch(44.32% 0.086 235.7)
XYZ	xyz(7.6021, 8.9261, 20.3871)
Luminance	0.0893 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155A7C #7C3715

analogous

#157C6A #155A7C #15267C

triadic

#155A7C #7C155A #5A7C15

tetradic

#155A7C #6A157C #7C3715 #267C15

square

#155A7C #6A157C #7C3715 #267C15

split-complementary

#155A7C #7C1526 #7C6A15

monochromatic

#04131A #0C3448 #155A7C #1E80B0 #30A3DC

Accessibility & contrast

On white

7.54

#155A7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#155A7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155A7C

7.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155A7C	#FFFFFF	#000000	##FFFFFF
##155A7C	1.00	7.54	2.79	7.54
#FFFFFF	7.54	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#495A7E

Deuteranopia (green-blind)

#3C507B

Tritanopia (blue-blind)

#006366

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #155a7c;
/* rgb */ color: rgb(21, 90, 124);
/* oklch */ color: oklch(44.3% 0.086 235.7);

Tailwind

colors: {
  custom: {
    50: '#6588a2',
    500: '#155a7c',
    950: '#000000',
  },
}

SCSS

$custom: #155a7c;
$custom-light: #6588a2;
$custom-dark: #000000;

JSON

{
  "hex": "#155a7c",
  "rgb": {
    "r": 21,
    "g": 90,
    "b": 124
  },
  "hsl": {
    "h": 199.806,
    "s": 71.034,
    "l": 28.431
  },
  "oklch": {
    "l": 0.44317,
    "c": 0.08566,
    "h": 235.7
  },
  "luminance": 0.08927
}

Semantic roles & 50–950 ramp

primary

#155A7C

secondary

#B1623C

accent

#753AEE

background

#F6F8F9

surface

#EBEFF2

border

#C6CACC

text

#060B0F

muted

#7A7C7E

Preview Lab

Preview with #155A7C

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

Preview Lab → · Contrast checker → · Palette generator →