#153D4D#153D4D

#153D4D is a dark, muted cyan. Relative luminance 0.040; OKLCH L 34.0% C 0.052 H 227.8°. Best body text is #FFFFFF at 11.62:1 contrast (WCAG AA passes).

Color values

HEX	#153D4D
RGB	rgb(21, 61, 77)
HSL	hsl(197, 57%, 19%)
HSV	hsv(197, 73%, 30%)
CMYK	cmyk(72.7%, 20.8%, 0%, 69.8%)
CIE-LAB	lab(23.78, -8.06, -13.85)
CIE-LCH	lch(23.78, 16.02, 239.79°)
OKLab	oklab(33.96% -0.0351 -0.0387)
OKLCH	oklch(33.96% 0.052 227.8)
XYZ	xyz(3.3170, 4.0324, 7.6233)
Luminance	0.0403 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153D4D #4D2515

analogous

#154D41 #153D4D #15214D

triadic

#153D4D #4D153D #3D4D15

tetradic

#153D4D #41154D #4D2515 #214D15

square

#153D4D #41154D #4D2515 #214D15

split-complementary

#153D4D #4D1521 #4D4115

monochromatic

#071318 #08171D #153D4D #22637D #2F89AD

Accessibility & contrast

On white

11.62

#153D4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#153D4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153D4D

11.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153D4D	#FFFFFF	#000000	##FFFFFF
##153D4D	1.00	11.62	1.81	11.62
#FFFFFF	11.62	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#353C4E

Deuteranopia (green-blind)

#2D364D

Tritanopia (blue-blind)

#004242

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #153d4d;
/* rgb */ color: rgb(21, 61, 77);
/* oklch */ color: oklch(34.0% 0.052 227.8);

Tailwind

colors: {
  custom: {
    50: '#5a727e',
    500: '#153d4d',
    950: '#000000',
  },
}

SCSS

$custom: #153d4d;
$custom-light: #5a727e;
$custom-dark: #000000;

JSON

{
  "hex": "#153d4d",
  "rgb": {
    "r": 21,
    "g": 61,
    "b": 77
  },
  "hsl": {
    "h": 197.143,
    "s": 57.143,
    "l": 19.216
  },
  "oklch": {
    "l": 0.33955,
    "c": 0.05228,
    "h": 227.8
  },
  "luminance": 0.04033
}

Semantic roles & 50–950 ramp

primary

#153D4D

secondary

#854F39

accent

#7347E0

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #153D4D

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

Preview Lab → · Contrast checker → · Palette generator →