#153F4D#153F4D

#153F4D is a dark, muted cyan. Relative luminance 0.043; OKLCH L 34.5% C 0.052 H 223.5°. Best body text is #FFFFFF at 11.35:1 contrast (WCAG AA passes).

Color values

HEX	#153F4D
RGB	rgb(21, 63, 77)
HSL	hsl(195, 57%, 19%)
HSV	hsv(195, 73%, 30%)
CMYK	cmyk(72.7%, 18.2%, 0%, 69.8%)
CIE-LAB	lab(24.48, -9.32, -12.77)
CIE-LCH	lch(24.48, 15.81, 233.86°)
OKLab	oklab(34.52% -0.0376 -0.0356)
OKLCH	oklch(34.52% 0.052 223.5)
XYZ	xyz(3.4258, 4.2499, 7.6595)
Luminance	0.0425 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153F4D #4D2315

analogous

#154D3F #153F4D #15234D

triadic

#153F4D #4D153F #3F4D15

tetradic

#153F4D #3F154D #4D2315 #234D15

square

#153F4D #3F154D #4D2315 #234D15

split-complementary

#153F4D #4D1523 #4D3F15

monochromatic

#071418 #08181D #153F4D #22667D #2F8EAD

Accessibility & contrast

On white

11.35

#153F4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#153F4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153F4D

11.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153F4D	#FFFFFF	#000000	##FFFFFF
##153F4D	1.00	11.35	1.85	11.35
#FFFFFF	11.35	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#373D4E

Deuteranopia (green-blind)

#2F384D

Tritanopia (blue-blind)

#004343

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #153f4d;
/* rgb */ color: rgb(21, 63, 77);
/* oklch */ color: oklch(34.5% 0.052 223.5);

Tailwind

colors: {
  custom: {
    50: '#5a747e',
    500: '#153f4d',
    950: '#000000',
  },
}

SCSS

$custom: #153f4d;
$custom-light: #5a747e;
$custom-dark: #000000;

JSON

{
  "hex": "#153f4d",
  "rgb": {
    "r": 21,
    "g": 63,
    "b": 77
  },
  "hsl": {
    "h": 195,
    "s": 57.143,
    "l": 19.216
  },
  "oklch": {
    "l": 0.34517,
    "c": 0.05178,
    "h": 223.5
  },
  "luminance": 0.0425
}

Semantic roles & 50–950 ramp

primary

#153F4D

secondary

#854C39

accent

#6E47E0

background

#F5F7F7

surface

#E9EDEE

border

#C5C8C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #153F4D

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

Preview Lab → · Contrast checker → · Palette generator →