#155A7E#155A7E

#155A7E is a dark, moderate cyan. Relative luminance 0.090; OKLCH L 44.4% C 0.088 H 237.2°. Best body text is #FFFFFF at 7.51:1 contrast (WCAG AA passes).

Color values

HEX	#155A7E
RGB	rgb(21, 90, 126)
HSL	hsl(201, 71%, 29%)
HSV	hsv(201, 83%, 49%)
CMYK	cmyk(83.3%, 28.6%, 0%, 50.6%)
CIE-LAB	lab(35.94, -7.25, -26.11)
CIE-LCH	lch(35.94, 27.10, 254.47°)
OKLab	oklab(44.43% -0.0476 -0.0738)
OKLCH	oklch(44.43% 0.088 237.2)
XYZ	xyz(7.7298, 8.9772, 21.0600)
Luminance	0.0898 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#155A7E #7E3915

analogous

#157E6E #155A7E #15267E

triadic

#155A7E #7E155A #5A7E15

tetradic

#155A7E #6E157E #7E3915 #267E15

square

#155A7E #6E157E #7E3915 #267E15

split-complementary

#155A7E #7E1526 #7E6E15

monochromatic

#04131A #0C354A #155A7E #1E7FB2 #31A2DD

Accessibility & contrast

On white

7.51

#155A7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#155A7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #155A7E

7.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##155A7E	#FFFFFF	#000000	##FFFFFF
##155A7E	1.00	7.51	2.80	7.51
#FFFFFF	7.51	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#495A80

Deuteranopia (green-blind)

#3B507D

Tritanopia (blue-blind)

#006366

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #155a7e;
/* rgb */ color: rgb(21, 90, 126);
/* oklch */ color: oklch(44.4% 0.088 237.2);

Tailwind

colors: {
  custom: {
    50: '#6588a3',
    500: '#155a7e',
    950: '#000000',
  },
}

SCSS

$custom: #155a7e;
$custom-light: #6588a3;
$custom-dark: #000000;

JSON

{
  "hex": "#155a7e",
  "rgb": {
    "r": 21,
    "g": 90,
    "b": 126
  },
  "hsl": {
    "h": 200.571,
    "s": 71.429,
    "l": 28.824
  },
  "oklch": {
    "l": 0.44428,
    "c": 0.08786,
    "h": 237.2
  },
  "luminance": 0.08978
}

Semantic roles & 50–950 ramp

primary

#155A7E

secondary

#B3653C

accent

#783AEE

background

#F6F8FA

surface

#EBEFF4

border

#C6CACE

text

#070B0F

muted

#7A7C7F

Preview Lab

Preview with #155A7E

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

Preview Lab → · Contrast checker → · Palette generator →