#153B73#153B73

#153B73 is a dark, moderate blue. Relative luminance 0.045; OKLCH L 35.9% C 0.106 H 258.4°. Best body text is #FFFFFF at 11.02:1 contrast (WCAG AA passes).

Color values

HEX	#153B73
RGB	rgb(21, 59, 115)
HSL	hsl(216, 69%, 27%)
HSV	hsv(216, 82%, 45%)
CMYK	cmyk(81.7%, 48.7%, 0%, 54.9%)
CIE-LAB	lab(25.34, 8.76, -36.06)
CIE-LCH	lch(25.34, 37.11, 283.65°)
OKLab	oklab(35.9% -0.0212 -0.1035)
OKLCH	oklch(35.9% 0.106 258.4)
XYZ	xyz(4.9666, 4.5246, 16.8279)
Luminance	0.0452 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153B73 #734D15

analogous

#156A73 #153B73 #1E1573

triadic

#153B73 #73153B #3B7315

tetradic

#153B73 #73156A #734D15 #15731E

square

#153B73 #73156A #734D15 #15731E

split-complementary

#153B73 #731E15 #6A7315

monochromatic

#050D1A #0C203F #153B73 #1E56A7 #2A71D8

Accessibility & contrast

On white

11.02

#153B73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#153B73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153B73

11.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153B73	#FFFFFF	#000000	##FFFFFF
##153B73	1.00	11.02	1.91	11.02
#FFFFFF	11.02	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D4175

Deuteranopia (green-blind)

#043872

Tritanopia (blue-blind)

#004851

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #153b73;
/* rgb */ color: rgb(21, 59, 115);
/* oklch */ color: oklch(35.9% 0.106 258.4);

Tailwind

colors: {
  custom: {
    50: '#62709c',
    500: '#153b73',
    950: '#000000',
  },
}

SCSS

$custom: #153b73;
$custom-light: #62709c;
$custom-dark: #000000;

JSON

{
  "hex": "#153b73",
  "rgb": {
    "r": 21,
    "g": 59,
    "b": 115
  },
  "hsl": {
    "h": 215.745,
    "s": 69.118,
    "l": 26.667
  },
  "oklch": {
    "l": 0.35899,
    "c": 0.10568,
    "h": 258.4
  },
  "luminance": 0.04525
}

Semantic roles & 50–950 ramp

primary

#153B73

secondary

#A97C3B

accent

#A53CEC

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #153B73

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

Preview Lab → · Contrast checker → · Palette generator →