#153C4A#153C4A

#153C4A is a dark, muted cyan. Relative luminance 0.039; OKLCH L 33.5% C 0.050 H 225.0°. Best body text is #FFFFFF at 11.82:1 contrast (WCAG AA passes).

Color values

HEX	#153C4A
RGB	rgb(21, 60, 74)
HSL	hsl(196, 56%, 19%)
HSV	hsv(196, 72%, 29%)
CMYK	cmyk(71.6%, 18.9%, 0%, 71%)
CIE-LAB	lab(23.29, -8.56, -12.61)
CIE-LCH	lch(23.29, 15.24, 235.84°)
OKLab	oklab(33.52% -0.0352 -0.0352)
OKLCH	oklch(33.52% 0.05 225)
XYZ	xyz(3.1607, 3.8852, 7.0606)
Luminance	0.0389 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153C4A #4A2315

analogous

#154A3D #153C4A #15214A

triadic

#153C4A #4A153C #3C4A15

tetradic

#153C4A #3D154A #4A2315 #214A15

square

#153C4A #3D154A #4A2315 #214A15

split-complementary

#153C4A #4A1521 #4A3D15

monochromatic

#071318 #07151A #153C4A #23637A #3089A9

Accessibility & contrast

On white

11.82

#153C4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#153C4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153C4A

11.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153C4A	#FFFFFF	#000000	##FFFFFF
##153C4A	1.00	11.82	1.78	11.82
#FFFFFF	11.82	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#343B4B

Deuteranopia (green-blind)

#2D354A

Tritanopia (blue-blind)

#004041

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #153c4a;
/* rgb */ color: rgb(21, 60, 74);
/* oklch */ color: oklch(33.5% 0.050 225.0);

Tailwind

colors: {
  custom: {
    50: '#5a717c',
    500: '#153c4a',
    950: '#000000',
  },
}

SCSS

$custom: #153c4a;
$custom-light: #5a717c;
$custom-dark: #000000;

JSON

{
  "hex": "#153c4a",
  "rgb": {
    "r": 21,
    "g": 60,
    "b": 74
  },
  "hsl": {
    "h": 195.849,
    "s": 55.789,
    "l": 18.627
  },
  "oklch": {
    "l": 0.33518,
    "c": 0.04979,
    "h": 225
  },
  "luminance": 0.03886
}

Semantic roles & 50–950 ramp

primary

#153C4A

secondary

#824C39

accent

#7049DF

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#040709

muted

#797A7B

Preview Lab

Preview with #153C4A

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

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