#153F55#153F55

#153F55 is a dark, muted cyan. Relative luminance 0.044; OKLCH L 34.9% C 0.060 H 235.1°. Best body text is #FFFFFF at 11.21:1 contrast (WCAG AA passes).

Color values

HEX	#153F55
RGB	rgb(21, 63, 85)
HSL	hsl(201, 60%, 21%)
HSV	hsv(201, 75%, 33%)
CMYK	cmyk(75.3%, 25.9%, 0%, 66.7%)
CIE-LAB	lab(24.86, -6.26, -17.44)
CIE-LCH	lch(24.86, 18.53, 250.24°)
OKLab	oklab(34.94% -0.0342 -0.049)
OKLCH	oklch(34.94% 0.06 235.1)
XYZ	xyz(3.7258, 4.3699, 9.2397)
Luminance	0.0437 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153F55 #552B15

analogous

#15554B #153F55 #151F55

triadic

#153F55 #55153F #3F5515

tetradic

#153F55 #4B1555 #552B15 #1F5515

square

#153F55 #4B1555 #552B15 #1F5515

split-complementary

#153F55 #55151F #554B15

monochromatic

#061219 #091B24 #153F55 #216386 #2D88B7

Accessibility & contrast

On white

11.21

#153F55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#153F55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153F55

11.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153F55	#FFFFFF	#000000	##FFFFFF
##153F55	1.00	11.21	1.87	11.21
#FFFFFF	11.21	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#343F56

Deuteranopia (green-blind)

#2C3855

Tritanopia (blue-blind)

#004546

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #153f55;
/* rgb */ color: rgb(21, 63, 85);
/* oklch */ color: oklch(34.9% 0.060 235.1);

Tailwind

colors: {
  custom: {
    50: '#5c7485',
    500: '#153f55',
    950: '#000000',
  },
}

SCSS

$custom: #153f55;
$custom-light: #5c7485;
$custom-dark: #000000;

JSON

{
  "hex": "#153f55",
  "rgb": {
    "r": 21,
    "g": 63,
    "b": 85
  },
  "hsl": {
    "h": 200.625,
    "s": 60.377,
    "l": 20.784
  },
  "oklch": {
    "l": 0.34943,
    "c": 0.05977,
    "h": 235.1
  },
  "luminance": 0.0437
}

Semantic roles & 50–950 ramp

primary

#153F55

secondary

#8D5639

accent

#7B44E4

background

#F5F7F8

surface

#E9EDEF

border

#C5C8CA

text

#04080B

muted

#797B7C

Preview Lab

Preview with #153F55

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

Preview Lab → · Contrast checker → · Palette generator →