#153C4B#153C4B

#153C4B is a dark, muted cyan. Relative luminance 0.039; OKLCH L 33.6% C 0.051 H 226.7°. Best body text is #FFFFFF at 11.80:1 contrast (WCAG AA passes).

Color values

HEX	#153C4B
RGB	rgb(21, 60, 75)
HSL	hsl(197, 56%, 19%)
HSV	hsv(197, 72%, 29%)
CMYK	cmyk(72%, 20%, 0%, 70.6%)
CIE-LAB	lab(23.33, -8.18, -13.21)
CIE-LCH	lch(23.33, 15.54, 238.22°)
OKLab	oklab(33.57% -0.0348 -0.0369)
OKLCH	oklch(33.57% 0.051 226.7)
XYZ	xyz(3.1946, 3.8988, 7.2394)
Luminance	0.0390 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153C4B #4B2415

analogous

#154B3F #153C4B #15214B

triadic

#153C4B #4B153C #3C4B15

tetradic

#153C4B #3F154B #4B2415 #214B15

square

#153C4B #3F154B #4B2415 #214B15

split-complementary

#153C4B #4B1521 #4B3F15

monochromatic

#071318 #08161B #153C4B #22627B #3089AB

Accessibility & contrast

On white

11.80

#153C4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#153C4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153C4B

11.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153C4B	#FFFFFF	#000000	##FFFFFF
##153C4B	1.00	11.80	1.78	11.80
#FFFFFF	11.80	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#343B4C

Deuteranopia (green-blind)

#2C354B

Tritanopia (blue-blind)

#004041

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #153c4b;
/* rgb */ color: rgb(21, 60, 75);
/* oklch */ color: oklch(33.6% 0.051 226.7);

Tailwind

colors: {
  custom: {
    50: '#5a717d',
    500: '#153c4b',
    950: '#000000',
  },
}

SCSS

$custom: #153c4b;
$custom-light: #5a717d;
$custom-dark: #000000;

JSON

{
  "hex": "#153c4b",
  "rgb": {
    "r": 21,
    "g": 60,
    "b": 75
  },
  "hsl": {
    "h": 196.667,
    "s": 56.25,
    "l": 18.824
  },
  "oklch": {
    "l": 0.3357,
    "c": 0.05069,
    "h": 226.7
  },
  "luminance": 0.03899
}

Semantic roles & 50–950 ramp

primary

#153C4B

secondary

#834D39

accent

#7248E0

background

#F5F6F7

surface

#E9ECEE

border

#C5C7C9

text

#040709

muted

#797A7B

Preview Lab

Preview with #153C4B

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

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