#153D7A#153D7A

#153D7A is a dark, moderate blue. Relative luminance 0.049; OKLCH L 36.9% C 0.113 H 259.0°. Best body text is #FFFFFF at 10.60:1 contrast (WCAG AA passes).

Color values

HEX	#153D7A
RGB	rgb(21, 61, 122)
HSL	hsl(216, 71%, 28%)
HSV	hsv(216, 83%, 48%)
CMYK	cmyk(82.8%, 50%, 0%, 52.2%)
CIE-LAB	lab(26.45, 10.29, -38.70)
CIE-LCH	lch(26.45, 40.04, 284.89°)
OKLab	oklab(36.92% -0.0217 -0.1112)
OKLCH	oklch(36.92% 0.113 259)
XYZ	xyz(5.4896, 4.9014, 19.0653)
Luminance	0.0490 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153D7A #7A5215

analogous

#156F7A #153D7A #20157A

triadic

#153D7A #7A153D #3D7A15

tetradic

#153D7A #7A156F #7A5215 #157A20

square

#153D7A #7A156F #7A5215 #157A20

split-complementary

#153D7A #7A2015 #6F7A15

monochromatic

#040D1A #0C2346 #153D7A #1E57AE #2E73DB

Accessibility & contrast

On white

10.60

#153D7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#153D7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153D7A

10.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153D7A	#FFFFFF	#000000	##FFFFFF
##153D7A	1.00	10.60	1.98	10.60
#FFFFFF	10.60	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A437C

Deuteranopia (green-blind)

#003A79

Tritanopia (blue-blind)

#004C55

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #153d7a;
/* rgb */ color: rgb(21, 61, 122);
/* oklch */ color: oklch(36.9% 0.113 259.0);

Tailwind

colors: {
  custom: {
    50: '#6471a1',
    500: '#153d7a',
    950: '#000000',
  },
}

SCSS

$custom: #153d7a;
$custom-light: #6471a1;
$custom-dark: #000000;

JSON

{
  "hex": "#153d7a",
  "rgb": {
    "r": 21,
    "g": 61,
    "b": 122
  },
  "hsl": {
    "h": 216.238,
    "s": 70.629,
    "l": 28.039
  },
  "oklch": {
    "l": 0.36918,
    "c": 0.11332,
    "h": 259
  },
  "luminance": 0.04902
}

Semantic roles & 50–950 ramp

primary

#153D7A

secondary

#AF813B

accent

#A73AED

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070F

muted

#7A7A7E

Preview Lab

Preview with #153D7A

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

Preview Lab → · Contrast checker → · Palette generator →