#153D78#153D78

#153D78 is a dark, moderate blue. Relative luminance 0.049; OKLCH L 36.8% C 0.110 H 258.5°. Best body text is #FFFFFF at 10.66:1 contrast (WCAG AA passes).

Color values

HEX	#153D78
RGB	rgb(21, 61, 120)
HSL	hsl(216, 70%, 28%)
HSV	hsv(216, 83%, 47%)
CMYK	cmyk(82.5%, 49.2%, 0%, 52.9%)
CIE-LAB	lab(26.31, 9.45, -37.66)
CIE-LCH	lch(26.31, 38.83, 284.09°)
OKLab	oklab(36.76% -0.022 -0.1082)
OKLCH	oklch(36.76% 0.11 258.5)
XYZ	xyz(5.3669, 4.8523, 18.4194)
Luminance	0.0485 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153D78 #785015

analogous

#156E78 #153D78 #1F1578

triadic

#153D78 #78153D #3D7815

tetradic

#153D78 #78156E #785015 #15781F

square

#153D78 #78156E #785015 #15781F

split-complementary

#153D78 #781F15 #6E7815

monochromatic

#050D1A #0C2344 #153D78 #1E57AC #2D73DA

Accessibility & contrast

On white

10.66

#153D78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#153D78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153D78

10.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153D78	#FFFFFF	#000000	##FFFFFF
##153D78	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)

#1C437A

Deuteranopia (green-blind)

#003A77

Tritanopia (blue-blind)

#004B54

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #153d78;
/* rgb */ color: rgb(21, 61, 120);
/* oklch */ color: oklch(36.8% 0.110 258.5);

Tailwind

colors: {
  custom: {
    50: '#64719f',
    500: '#153d78',
    950: '#000000',
  },
}

SCSS

$custom: #153d78;
$custom-light: #64719f;
$custom-dark: #000000;

JSON

{
  "hex": "#153d78",
  "rgb": {
    "r": 21,
    "g": 61,
    "b": 120
  },
  "hsl": {
    "h": 215.758,
    "s": 70.213,
    "l": 27.647
  },
  "oklch": {
    "l": 0.36763,
    "c": 0.11041,
    "h": 258.5
  },
  "luminance": 0.04853
}

Semantic roles & 50–950 ramp

primary

#153D78

secondary

#AE7F3B

accent

#A53BED

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #153D78

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

Preview Lab → · Contrast checker → · Palette generator →