#153F5C#153F5C

#153F5C is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.3% C 0.068 H 242.5°. Best body text is #FFFFFF at 11.07:1 contrast (WCAG AA passes).

Color values

HEX	#153F5C
RGB	rgb(21, 63, 92)
HSL	hsl(205, 63%, 22%)
HSV	hsv(205, 77%, 36%)
CMYK	cmyk(77.2%, 31.5%, 0%, 63.9%)
CIE-LAB	lab(25.22, -3.49, -21.45)
CIE-LCH	lch(25.22, 21.73, 260.75°)
OKLab	oklab(35.35% -0.0315 -0.0606)
OKLCH	oklch(35.35% 0.068 242.5)
XYZ	xyz(4.0178, 4.4867, 10.7774)
Luminance	0.0449 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153F5C #5C3215

analogous

#155C56 #153F5C #151C5C

triadic

#153F5C #5C153F #3F5C15

tetradic

#153F5C #56155C #5C3215 #1C5C15

square

#153F5C #56155C #5C3215 #1C5C15

split-complementary

#153F5C #5C151C #5C5615

monochromatic

#061119 #0A1D2A #153F5C #20618E #2C83C0

Accessibility & contrast

On white

11.07

#153F5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#153F5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153F5C

11.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153F5C	#FFFFFF	#000000	##FFFFFF
##153F5C	1.00	11.07	1.90	11.07
#FFFFFF	11.07	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#32405D

Deuteranopia (green-blind)

#28395B

Tritanopia (blue-blind)

#004649

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #153f5c;
/* rgb */ color: rgb(21, 63, 92);
/* oklch */ color: oklch(35.3% 0.068 242.5);

Tailwind

colors: {
  custom: {
    50: '#5d738a',
    500: '#153f5c',
    950: '#000000',
  },
}

SCSS

$custom: #153f5c;
$custom-light: #5d738a;
$custom-dark: #000000;

JSON

{
  "hex": "#153f5c",
  "rgb": {
    "r": 21,
    "g": 63,
    "b": 92
  },
  "hsl": {
    "h": 204.507,
    "s": 62.832,
    "l": 22.157
  },
  "oklch": {
    "l": 0.35348,
    "c": 0.06833,
    "h": 242.5
  },
  "luminance": 0.04487
}

Semantic roles & 50–950 ramp

primary

#153F5C

secondary

#935E39

accent

#8542E6

background

#F5F7F8

surface

#E9EDF0

border

#C5C8CB

text

#05080B

muted

#797B7C

Preview Lab

Preview with #153F5C

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

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