#153A5D#153A5D

#153A5D is a dark, moderate cyan. Relative luminance 0.040; OKLCH L 34.1% C 0.075 H 249.9°. Best body text is #FFFFFF at 11.70:1 contrast (WCAG AA passes).

Color values

HEX	#153A5D
RGB	rgb(21, 58, 93)
HSL	hsl(209, 63%, 22%)
HSV	hsv(209, 77%, 36%)
CMYK	cmyk(77.4%, 37.6%, 0%, 63.5%)
CIE-LAB	lab(23.59, 0.28, -24.67)
CIE-LCH	lch(23.59, 24.67, 270.66°)
OKLab	oklab(34.08% -0.0256 -0.0701)
OKLCH	oklch(34.08% 0.075 249.9)
XYZ	xyz(3.7974, 3.9754, 10.9210)
Luminance	0.0398 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153A5D #5D3815

analogous

#155D5C #153A5D #15165D

triadic

#153A5D #5D153A #3A5D15

tetradic

#153A5D #5C155D #5D3815 #165D15

square

#153A5D #5C155D #5D3815 #165D15

split-complementary

#153A5D #5D1516 #5D5C15

monochromatic

#061019 #0A1B2B #153A5D #20598F #2C78C1

Accessibility & contrast

On white

11.70

#153A5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#153A5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153A5D

11.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153A5D	#FFFFFF	#000000	##FFFFFF
##153A5D	1.00	11.70	1.80	11.70
#FFFFFF	11.70	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A3C5E

Deuteranopia (green-blind)

#20355C

Tritanopia (blue-blind)

#004247

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #153a5d;
/* rgb */ color: rgb(21, 58, 93);
/* oklch */ color: oklch(34.1% 0.075 249.9);

Tailwind

colors: {
  custom: {
    50: '#5d6f8b',
    500: '#153a5d',
    950: '#000000',
  },
}

SCSS

$custom: #153a5d;
$custom-light: #5d6f8b;
$custom-dark: #000000;

JSON

{
  "hex": "#153a5d",
  "rgb": {
    "r": 21,
    "g": 58,
    "b": 93
  },
  "hsl": {
    "h": 209.167,
    "s": 63.158,
    "l": 22.353
  },
  "oklch": {
    "l": 0.34082,
    "c": 0.07463,
    "h": 249.9
  },
  "luminance": 0.03976
}

Semantic roles & 50–950 ramp

primary

#153A5D

secondary

#946639

accent

#9242E6

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #153A5D

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

Preview Lab → · Contrast checker → · Palette generator →