#153E4E#153E4E

#153E4E is a dark, muted cyan. Relative luminance 0.042; OKLCH L 34.3% C 0.053 H 227.3°. Best body text is #FFFFFF at 11.47:1 contrast (WCAG AA passes).

Color values

HEX	#153E4E
RGB	rgb(21, 62, 78)
HSL	hsl(197, 58%, 19%)
HSV	hsv(197, 73%, 31%)
CMYK	cmyk(73.1%, 20.5%, 0%, 69.4%)
CIE-LAB	lab(24.18, -8.32, -13.90)
CIE-LCH	lch(24.18, 16.20, 239.10°)
OKLab	oklab(34.29% -0.0359 -0.0389)
OKLCH	oklch(34.29% 0.053 227.3)
XYZ	xyz(3.4065, 4.1544, 7.8286)
Luminance	0.0415 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153E4E #4E2515

analogous

#154E42 #153E4E #15224E

triadic

#153E4E #4E153E #3E4E15

tetradic

#153E4E #42154E #4E2515 #224E15

square

#153E4E #42154E #4E2515 #224E15

split-complementary

#153E4E #4E1522 #4E4215

monochromatic

#061318 #08181E #153E4E #22647E #2F8BAE

Accessibility & contrast

On white

11.47

#153E4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#153E4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153E4E

11.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153E4E	#FFFFFF	#000000	##FFFFFF
##153E4E	1.00	11.47	1.83	11.47
#FFFFFF	11.47	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#353D4F

Deuteranopia (green-blind)

#2E374E

Tritanopia (blue-blind)

#004343

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #153e4e;
/* rgb */ color: rgb(21, 62, 78);
/* oklch */ color: oklch(34.3% 0.053 227.3);

Tailwind

colors: {
  custom: {
    50: '#5a737f',
    500: '#153e4e',
    950: '#000000',
  },
}

SCSS

$custom: #153e4e;
$custom-light: #5a737f;
$custom-dark: #000000;

JSON

{
  "hex": "#153e4e",
  "rgb": {
    "r": 21,
    "g": 62,
    "b": 78
  },
  "hsl": {
    "h": 196.842,
    "s": 57.576,
    "l": 19.412
  },
  "oklch": {
    "l": 0.34287,
    "c": 0.05291,
    "h": 227.3
  },
  "luminance": 0.04155
}

Semantic roles & 50–950 ramp

primary

#153E4E

secondary

#864F39

accent

#7247E1

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #153E4E

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

Preview Lab → · Contrast checker → · Palette generator →