#153D7D#153D7D

#153D7D is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.2% C 0.118 H 259.6°. Best body text is #FFFFFF at 10.52:1 contrast (WCAG AA passes).

Color values

HEX	#153D7D
RGB	rgb(21, 61, 125)
HSL	hsl(217, 71%, 29%)
HSV	hsv(217, 83%, 49%)
CMYK	cmyk(83.2%, 51.2%, 0%, 51%)
CIE-LAB	lab(26.67, 11.54, -40.23)
CIE-LCH	lch(26.67, 41.86, 286.01°)
OKLab	oklab(37.15% -0.0212 -0.1158)
OKLCH	oklch(37.15% 0.118 259.6)
XYZ	xyz(5.6783, 4.9769, 20.0594)
Luminance	0.0498 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153D7D #7D5515

analogous

#15717D #153D7D #21157D

triadic

#153D7D #7D153D #3D7D15

tetradic

#153D7D #7D1571 #7D5515 #157D21

square

#153D7D #7D1571 #7D5515 #157D21

split-complementary

#153D7D #7D2115 #717D15

monochromatic

#040D1A #0C2349 #153D7D #1E57B1 #3072DC

Accessibility & contrast

On white

10.52

#153D7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#153D7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153D7D

10.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153D7D	#FFFFFF	#000000	##FFFFFF
##153D7D	1.00	10.52	2.00	10.52
#FFFFFF	10.52	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#16447F

Deuteranopia (green-blind)

#003B7C

Tritanopia (blue-blind)

#004C57

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #153d7d;
/* rgb */ color: rgb(21, 61, 125);
/* oklch */ color: oklch(37.2% 0.118 259.6);

Tailwind

colors: {
  custom: {
    50: '#6571a3',
    500: '#153d7d',
    950: '#000000',
  },
}

SCSS

$custom: #153d7d;
$custom-light: #6571a3;
$custom-dark: #000000;

JSON

{
  "hex": "#153d7d",
  "rgb": {
    "r": 21,
    "g": 61,
    "b": 125
  },
  "hsl": {
    "h": 216.923,
    "s": 71.233,
    "l": 28.627
  },
  "oklch": {
    "l": 0.37154,
    "c": 0.11768,
    "h": 259.6
  },
  "luminance": 0.04978
}

Semantic roles & 50–950 ramp

primary

#153D7D

secondary

#B2853C

accent

#A93AEE

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#06070F

muted

#7A7A7F

Preview Lab

Preview with #153D7D

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

Preview Lab → · Contrast checker → · Palette generator →