#153D4E#153D4E

#153D4E is a dark, muted cyan. Relative luminance 0.040; OKLCH L 34.0% C 0.053 H 229.4°. Best body text is #FFFFFF at 11.61:1 contrast (WCAG AA passes).

Color values

HEX	#153D4E
RGB	rgb(21, 61, 78)
HSL	hsl(198, 58%, 19%)
HSV	hsv(198, 73%, 31%)
CMYK	cmyk(73.1%, 21.8%, 0%, 69.4%)
CIE-LAB	lab(23.82, -7.68, -14.44)
CIE-LCH	lch(23.82, 16.35, 241.98°)
OKLab	oklab(34.01% -0.0347 -0.0404)
OKLCH	oklch(34.01% 0.053 229.4)
XYZ	xyz(3.3526, 4.0466, 7.8106)
Luminance	0.0405 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153D4E #4E2615

analogous

#154E43 #153D4E #15214E

triadic

#153D4E #4E153D #3D4E15

tetradic

#153D4E #43154E #4E2615 #214E15

square

#153D4E #43154E #4E2615 #214E15

split-complementary

#153D4E #4E1521 #4E4315

monochromatic

#061318 #08171E #153D4E #22637E #2F88AE

Accessibility & contrast

On white

11.61

#153D4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#153D4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153D4E

11.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153D4E	#FFFFFF	#000000	##FFFFFF
##153D4E	1.00	11.61	1.81	11.61
#FFFFFF	11.61	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#343C4F

Deuteranopia (green-blind)

#2C364E

Tritanopia (blue-blind)

#004243

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #153d4e;
/* rgb */ color: rgb(21, 61, 78);
/* oklch */ color: oklch(34.0% 0.053 229.4);

Tailwind

colors: {
  custom: {
    50: '#5a727f',
    500: '#153d4e',
    950: '#000000',
  },
}

SCSS

$custom: #153d4e;
$custom-light: #5a727f;
$custom-dark: #000000;

JSON

{
  "hex": "#153d4e",
  "rgb": {
    "r": 21,
    "g": 61,
    "b": 78
  },
  "hsl": {
    "h": 197.895,
    "s": 57.576,
    "l": 19.412
  },
  "oklch": {
    "l": 0.34008,
    "c": 0.05326,
    "h": 229.4
  },
  "luminance": 0.04047
}

Semantic roles & 50–950 ramp

primary

#153D4E

secondary

#865039

accent

#7547E1

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#04080A

muted

#797B7C

Preview Lab

Preview with #153D4E

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

Preview Lab → · Contrast checker → · Palette generator →