#153C7C#153C7C

#153C7C is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.8% C 0.118 H 259.9°. Best body text is #FFFFFF at 10.66:1 contrast (WCAG AA passes).

Color values

HEX	#153C7C
RGB	rgb(21, 60, 124)
HSL	hsl(217, 71%, 28%)
HSV	hsv(217, 83%, 49%)
CMYK	cmyk(83.1%, 51.6%, 0%, 51.4%)
CIE-LAB	lab(26.29, 11.83, -40.22)
CIE-LCH	lch(26.29, 41.92, 286.39°)
OKLab	oklab(36.84% -0.0205 -0.1157)
OKLCH	oklch(36.84% 0.118 259.9)
XYZ	xyz(5.5619, 4.8457, 19.7071)
Luminance	0.0485 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153C7C #7C5515

analogous

#156F7C #153C7C #22157C

triadic

#153C7C #7C153C #3C7C15

tetradic

#153C7C #7C156F #7C5515 #157C22

square

#153C7C #7C156F #7C5515 #157C22

split-complementary

#153C7C #7C2215 #6F7C15

monochromatic

#040D1A #0C2348 #153C7C #1E55B0 #3071DC

Accessibility & contrast

On white

10.66

#153C7C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#153C7C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153C7C

10.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153C7C	#FFFFFF	#000000	##FFFFFF
##153C7C	1.00	10.66	1.97	10.66
#FFFFFF	10.66	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#15437E

Deuteranopia (green-blind)

#003A7B

Tritanopia (blue-blind)

#004B56

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #153c7c;
/* rgb */ color: rgb(21, 60, 124);
/* oklch */ color: oklch(36.8% 0.118 259.9);

Tailwind

colors: {
  custom: {
    50: '#6571a2',
    500: '#153c7c',
    950: '#000000',
  },
}

SCSS

$custom: #153c7c;
$custom-light: #6571a2;
$custom-dark: #000000;

JSON

{
  "hex": "#153c7c",
  "rgb": {
    "r": 21,
    "g": 60,
    "b": 124
  },
  "hsl": {
    "h": 217.282,
    "s": 71.034,
    "l": 28.431
  },
  "oklch": {
    "l": 0.36841,
    "c": 0.11754,
    "h": 259.9
  },
  "luminance": 0.04846
}

Semantic roles & 50–950 ramp

primary

#153C7C

secondary

#B1853C

accent

#AA3AEE

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #153C7C

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

Preview Lab → · Contrast checker → · Palette generator →