#153B56#153B56

#153B56 is a dark, moderate cyan. Relative luminance 0.040; OKLCH L 33.9% C 0.064 H 242.9°. Best body text is #FFFFFF at 11.72:1 contrast (WCAG AA passes).

Color values

HEX	#153B56
RGB	rgb(21, 59, 86)
HSL	hsl(205, 61%, 21%)
HSV	hsv(205, 76%, 34%)
CMYK	cmyk(75.6%, 31.4%, 0%, 66.3%)
CIE-LAB	lab(23.54, -3.24, -20.16)
CIE-LCH	lch(23.54, 20.42, 260.87°)
OKLab	oklab(33.91% -0.0291 -0.0569)
OKLCH	oklch(33.91% 0.064 242.9)
XYZ	xyz(3.5523, 3.9589, 9.3792)
Luminance	0.0396 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153B56 #563015

analogous

#155650 #153B56 #151A56

triadic

#153B56 #56153B #3B5615

tetradic

#153B56 #501556 #563015 #1A5615

square

#153B56 #501556 #563015 #1A5615

split-complementary

#153B56 #56151A #565015

monochromatic

#061119 #091925 #153B56 #215D87 #2D7EB8

Accessibility & contrast

On white

11.72

#153B56 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#153B56 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153B56

11.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153B56	#FFFFFF	#000000	##FFFFFF
##153B56	1.00	11.72	1.79	11.72
#FFFFFF	11.72	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F3C57

Deuteranopia (green-blind)

#263556

Tritanopia (blue-blind)

#004244

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #153b56;
/* rgb */ color: rgb(21, 59, 86);
/* oklch */ color: oklch(33.9% 0.064 242.9);

Tailwind

colors: {
  custom: {
    50: '#5c7085',
    500: '#153b56',
    950: '#000000',
  },
}

SCSS

$custom: #153b56;
$custom-light: #5c7085;
$custom-dark: #000000;

JSON

{
  "hex": "#153b56",
  "rgb": {
    "r": 21,
    "g": 59,
    "b": 86
  },
  "hsl": {
    "h": 204.923,
    "s": 60.748,
    "l": 20.98
  },
  "oklch": {
    "l": 0.3391,
    "c": 0.06396,
    "h": 242.9
  },
  "luminance": 0.03959
}

Semantic roles & 50–950 ramp

primary

#153B56

secondary

#8E5C39

accent

#8644E4

background

#F5F6F8

surface

#E9ECEF

border

#C5C7CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #153B56

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

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