#15578D#15578D

#15578D is a dark, moderate cyan. Relative luminance 0.089; OKLCH L 44.6% C 0.109 H 248.5°. Best body text is #FFFFFF at 7.55:1 contrast (WCAG AA passes).

Color values

HEX	#15578D
RGB	rgb(21, 87, 141)
HSL	hsl(207, 74%, 32%)
HSV	hsv(207, 85%, 55%)
CMYK	cmyk(85.1%, 38.3%, 0%, 44.7%)
CIE-LAB	lab(35.79, 0.58, -35.52)
CIE-LCH	lch(35.79, 35.53, 270.94°)
OKLab	oklab(44.57% -0.04 -0.1014)
OKLCH	oklch(44.57% 0.109 248.5)
XYZ	xyz(8.5233, 8.8978, 26.4624)
Luminance	0.0890 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#15578D #8D4B15

analogous

#158D87 #15578D #151B8D

triadic

#15578D #8D1557 #578D15

tetradic

#15578D #87158D #8D4B15 #1B8D15

square

#15578D #87158D #8D4B15 #1B8D15

split-complementary

#15578D #8D151B #8D8715

monochromatic

#051522 #0D3658 #15578D #1D78C2 #3B97E2

Accessibility & contrast

On white

7.55

#15578D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.78

#15578D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #15578D

7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##15578D	#FFFFFF	#000000	##FFFFFF
##15578D	1.00	7.55	2.78	7.55
#FFFFFF	7.55	1.00	21.00	1.00
#000000	2.78	21.00	1.00	21.00
##FFFFFF	7.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D5A8F

Deuteranopia (green-blind)

#2B4F8C

Tritanopia (blue-blind)

#00646B

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #15578d;
/* rgb */ color: rgb(21, 87, 141);
/* oklch */ color: oklch(44.6% 0.109 248.5);

Tailwind

colors: {
  custom: {
    50: '#6986ae',
    500: '#15578d',
    950: '#000000',
  },
}

SCSS

$custom: #15578d;
$custom-light: #6986ae;
$custom-dark: #000000;

JSON

{
  "hex": "#15578d",
  "rgb": {
    "r": 21,
    "g": 87,
    "b": 141
  },
  "hsl": {
    "h": 207,
    "s": 74.074,
    "l": 31.765
  },
  "oklch": {
    "l": 0.44571,
    "c": 0.10896,
    "h": 248.5
  },
  "luminance": 0.08899
}

Semantic roles & 50–950 ramp

primary

#15578D

secondary

#C1783D

accent

#8B37F1

background

#F6F8FA

surface

#ECEFF4

border

#C7CACE

text

#070B10

muted

#7A7C7F

Preview Lab

Preview with #15578D

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

Preview Lab → · Contrast checker → · Palette generator →