#153D5A#153D5A

#153D5A is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 34.7% C 0.067 H 243.6°. Best body text is #FFFFFF at 11.37:1 contrast (WCAG AA passes).

Color values

HEX	#153D5A
RGB	rgb(21, 61, 90)
HSL	hsl(205, 62%, 22%)
HSV	hsv(205, 77%, 35%)
CMYK	cmyk(76.7%, 32.2%, 0%, 64.7%)
CIE-LAB	lab(24.43, -2.97, -21.38)
CIE-LCH	lch(24.43, 21.58, 262.10°)
OKLab	oklab(34.69% -0.03 -0.0605)
OKLCH	oklch(34.69% 0.067 243.6)
XYZ	xyz(3.8228, 4.2347, 10.2868)
Luminance	0.0423 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153D5A #5A3215

analogous

#155A55 #153D5A #151B5A

triadic

#153D5A #5A153D #3D5A15

tetradic

#153D5A #55155A #5A3215 #1B5A15

square

#153D5A #55155A #5A3215 #1B5A15

split-complementary

#153D5A #5A151B #5A5515

monochromatic

#061119 #091B28 #153D5A #215F8C #2C80BD

Accessibility & contrast

On white

11.37

#153D5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#153D5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153D5A

11.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153D5A	#FFFFFF	#000000	##FFFFFF
##153D5A	1.00	11.37	1.85	11.37
#FFFFFF	11.37	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#303E5B

Deuteranopia (green-blind)

#263759

Tritanopia (blue-blind)

#004447

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #153d5a;
/* rgb */ color: rgb(21, 61, 90);
/* oklch */ color: oklch(34.7% 0.067 243.6);

Tailwind

colors: {
  custom: {
    50: '#5d7289',
    500: '#153d5a',
    950: '#000000',
  },
}

SCSS

$custom: #153d5a;
$custom-light: #5d7289;
$custom-dark: #000000;

JSON

{
  "hex": "#153d5a",
  "rgb": {
    "r": 21,
    "g": 61,
    "b": 90
  },
  "hsl": {
    "h": 205.217,
    "s": 62.162,
    "l": 21.765
  },
  "oklch": {
    "l": 0.3469,
    "c": 0.06748,
    "h": 243.6
  },
  "luminance": 0.04235
}

Semantic roles & 50–950 ramp

primary

#153D5A

secondary

#925E39

accent

#8743E5

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05070B

muted

#797A7C

Preview Lab

Preview with #153D5A

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

Preview Lab → · Contrast checker → · Palette generator →