#153A5A#153A5A

#153A5A is a dark, moderate cyan. Relative luminance 0.039; OKLCH L 33.9% C 0.070 H 247.8°. Best body text is #FFFFFF at 11.77:1 contrast (WCAG AA passes).

Color values

HEX	#153A5A
RGB	rgb(21, 58, 90)
HSL	hsl(208, 62%, 22%)
HSV	hsv(208, 77%, 35%)
CMYK	cmyk(76.7%, 35.6%, 0%, 64.7%)
CIE-LAB	lab(23.42, -0.94, -22.98)
CIE-LCH	lch(23.42, 23.00, 267.64°)
OKLab	oklab(33.89% -0.0266 -0.0652)
OKLCH	oklch(33.89% 0.07 247.8)
XYZ	xyz(3.6671, 3.9233, 10.2349)
Luminance	0.0392 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153A5A #5A3515

analogous

#155A58 #153A5A #15185A

triadic

#153A5A #5A153A #3A5A15

tetradic

#153A5A #58155A #5A3515 #185A15

square

#153A5A #58155A #5A3515 #185A15

split-complementary

#153A5A #5A1518 #5A5815

monochromatic

#061019 #091A28 #153A5A #215A8C #2C7ABD

Accessibility & contrast

On white

11.77

#153A5A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#153A5A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153A5A

11.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153A5A	#FFFFFF	#000000	##FFFFFF
##153A5A	1.00	11.77	1.78	11.77
#FFFFFF	11.77	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C3B5B

Deuteranopia (green-blind)

#223559

Tritanopia (blue-blind)

#004245

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #153a5a;
/* rgb */ color: rgb(21, 58, 90);
/* oklch */ color: oklch(33.9% 0.070 247.8);

Tailwind

colors: {
  custom: {
    50: '#5c6f89',
    500: '#153a5a',
    950: '#000000',
  },
}

SCSS

$custom: #153a5a;
$custom-light: #5c6f89;
$custom-dark: #000000;

JSON

{
  "hex": "#153a5a",
  "rgb": {
    "r": 21,
    "g": 58,
    "b": 90
  },
  "hsl": {
    "h": 207.826,
    "s": 62.162,
    "l": 21.765
  },
  "oklch": {
    "l": 0.33889,
    "c": 0.07038,
    "h": 247.8
  },
  "luminance": 0.03924
}

Semantic roles & 50–950 ramp

primary

#153A5A

secondary

#926239

accent

#8E43E5

background

#F5F6F8

surface

#E9ECF0

border

#C5C7CB

text

#05070B

muted

#797A7C

Preview Lab

Preview with #153A5A

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

Preview Lab → · Contrast checker → · Palette generator →