#153B4F#153B4F

#153B4F is a dark, muted cyan. Relative luminance 0.039; OKLCH L 33.5% C 0.055 H 234.9°. Best body text is #FFFFFF at 11.86:1 contrast (WCAG AA passes).

Color values

HEX	#153B4F
RGB	rgb(21, 59, 79)
HSL	hsl(201, 58%, 20%)
HSV	hsv(201, 73%, 31%)
CMYK	cmyk(73.4%, 25.3%, 0%, 69%)
CIE-LAB	lab(23.17, -6.00, -16.11)
CIE-LCH	lch(23.17, 17.19, 249.56°)
OKLab	oklab(33.51% -0.0318 -0.0452)
OKLCH	oklch(33.51% 0.055 234.9)
XYZ	xyz(3.2840, 3.8515, 7.9660)
Luminance	0.0385 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153B4F #4F2915

analogous

#154F46 #153B4F #151E4F

triadic

#153B4F #4F153B #3B4F15

tetradic

#153B4F #46154F #4F2915 #1E4F15

square

#153B4F #46154F #4F2915 #1E4F15

split-complementary

#153B4F #4F151E #4F4615

monochromatic

#061218 #08171F #153B4F #225F7F #2F83B0

Accessibility & contrast

On white

11.86

#153B4F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#153B4F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153B4F

11.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153B4F	#FFFFFF	#000000	##FFFFFF
##153B4F	1.00	11.86	1.77	11.86
#FFFFFF	11.86	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#313A50

Deuteranopia (green-blind)

#29354F

Tritanopia (blue-blind)

#004042

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #153b4f;
/* rgb */ color: rgb(21, 59, 79);
/* oklch */ color: oklch(33.5% 0.055 234.9);

Tailwind

colors: {
  custom: {
    50: '#5a7080',
    500: '#153b4f',
    950: '#000000',
  },
}

SCSS

$custom: #153b4f;
$custom-light: #5a7080;
$custom-dark: #000000;

JSON

{
  "hex": "#153b4f",
  "rgb": {
    "r": 21,
    "g": 59,
    "b": 79
  },
  "hsl": {
    "h": 200.69,
    "s": 58,
    "l": 19.608
  },
  "oklch": {
    "l": 0.33505,
    "c": 0.0553,
    "h": 234.9
  },
  "luminance": 0.03852
}

Semantic roles & 50–950 ramp

primary

#153B4F

secondary

#875439

accent

#7C47E1

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #153B4F

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

Preview Lab → · Contrast checker → · Palette generator →