#153B5A#153B5A

#153B5A is a dark, moderate cyan. Relative luminance 0.040; OKLCH L 34.2% C 0.069 H 246.4°. Best body text is #FFFFFF at 11.63:1 contrast (WCAG AA passes).

Color values

HEX	#153B5A
RGB	rgb(21, 59, 90)
HSL	hsl(207, 62%, 22%)
HSV	hsv(207, 77%, 35%)
CMYK	cmyk(76.7%, 34.4%, 0%, 64.7%)
CIE-LAB	lab(23.75, -1.62, -22.44)
CIE-LCH	lch(23.75, 22.50, 265.86°)
OKLab	oklab(34.16% -0.0277 -0.0636)
OKLCH	oklch(34.16% 0.069 246.4)
XYZ	xyz(3.7180, 4.0251, 10.2519)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153B5A #5A3415

analogous

#155A57 #153B5A #15185A

triadic

#153B5A #5A153B #3B5A15

tetradic

#153B5A #57155A #5A3415 #185A15

square

#153B5A #57155A #5A3415 #185A15

split-complementary

#153B5A #5A1518 #5A5715

monochromatic

#061019 #091A28 #153B5A #215C8C #2C7CBD

Accessibility & contrast

On white

11.63

#153B5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#153B5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153B5A

11.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153B5A	#FFFFFF	#000000	##FFFFFF
##153B5A	1.00	11.63	1.81	11.63
#FFFFFF	11.63	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D3C5B

Deuteranopia (green-blind)

#233659

Tritanopia (blue-blind)

#004246

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #153b5a;
/* rgb */ color: rgb(21, 59, 90);
/* oklch */ color: oklch(34.2% 0.069 246.4);

Tailwind

colors: {
  custom: {
    50: '#5d7089',
    500: '#153b5a',
    950: '#000000',
  },
}

SCSS

$custom: #153b5a;
$custom-light: #5d7089;
$custom-dark: #000000;

JSON

{
  "hex": "#153b5a",
  "rgb": {
    "r": 21,
    "g": 59,
    "b": 90
  },
  "hsl": {
    "h": 206.957,
    "s": 62.162,
    "l": 21.765
  },
  "oklch": {
    "l": 0.34155,
    "c": 0.06937,
    "h": 246.4
  },
  "luminance": 0.04026
}

Semantic roles & 50–950 ramp

primary

#153B5A

secondary

#926139

accent

#8C43E5

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05070B

muted

#797A7C

Preview Lab

Preview with #153B5A

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

Preview Lab → · Contrast checker → · Palette generator →