#153A5C#153A5C

#153A5C is a dark, moderate cyan. Relative luminance 0.040; OKLCH L 34.0% C 0.073 H 249.2°. Best body text is #FFFFFF at 11.72:1 contrast (WCAG AA passes).

Color values

HEX	#153A5C
RGB	rgb(21, 58, 92)
HSL	hsl(209, 63%, 22%)
HSV	hsv(209, 77%, 36%)
CMYK	cmyk(77.2%, 37%, 0%, 63.9%)
CIE-LAB	lab(23.53, -0.13, -24.11)
CIE-LCH	lch(23.53, 24.11, 269.70°)
OKLab	oklab(34.02% -0.0259 -0.0684)
OKLCH	oklch(34.02% 0.073 249.2)
XYZ	xyz(3.7534, 3.9578, 10.6893)
Luminance	0.0396 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153A5C #5C3715

analogous

#155C5B #153A5C #15175C

triadic

#153A5C #5C153A #3A5C15

tetradic

#153A5C #5B155C #5C3715 #175C15

square

#153A5C #5B155C #5C3715 #175C15

split-complementary

#153A5C #5C1517 #5C5B15

monochromatic

#061019 #0A1B2A #153A5C #20598E #2C79C0

Accessibility & contrast

On white

11.72

#153A5C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#153A5C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153A5C

11.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153A5C	#FFFFFF	#000000	##FFFFFF
##153A5C	1.00	11.72	1.79	11.72
#FFFFFF	11.72	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B3C5D

Deuteranopia (green-blind)

#20355B

Tritanopia (blue-blind)

#004246

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #153a5c;
/* rgb */ color: rgb(21, 58, 92);
/* oklch */ color: oklch(34.0% 0.073 249.2);

Tailwind

colors: {
  custom: {
    50: '#5d6f8a',
    500: '#153a5c',
    950: '#000000',
  },
}

SCSS

$custom: #153a5c;
$custom-light: #5d6f8a;
$custom-dark: #000000;

JSON

{
  "hex": "#153a5c",
  "rgb": {
    "r": 21,
    "g": 58,
    "b": 92
  },
  "hsl": {
    "h": 208.732,
    "s": 62.832,
    "l": 22.157
  },
  "oklch": {
    "l": 0.34017,
    "c": 0.0732,
    "h": 249.2
  },
  "luminance": 0.03958
}

Semantic roles & 50–950 ramp

primary

#153A5C

secondary

#936439

accent

#9042E6

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05070B

muted

#797A7C

Preview Lab

Preview with #153A5C

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

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