#153B78#153B78

#153B78 is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.3% C 0.113 H 259.6°. Best body text is #FFFFFF at 10.89:1 contrast (WCAG AA passes).

Color values

HEX	#153B78
RGB	rgb(21, 59, 120)
HSL	hsl(217, 70%, 28%)
HSV	hsv(217, 83%, 47%)
CMYK	cmyk(82.5%, 50.8%, 0%, 52.9%)
CIE-LAB	lab(25.69, 10.86, -38.66)
CIE-LCH	lch(25.69, 40.16, 285.69°)
OKLab	oklab(36.29% -0.0203 -0.1112)
OKLCH	oklch(36.29% 0.113 259.6)
XYZ	xyz(5.2622, 4.6428, 18.3845)
Luminance	0.0464 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153B78 #785215

analogous

#156C78 #153B78 #211578

triadic

#153B78 #78153B #3B7815

tetradic

#153B78 #78156C #785215 #157821

square

#153B78 #78156C #785215 #157821

split-complementary

#153B78 #782115 #6C7815

monochromatic

#050D1A #0C2144 #153B78 #1E55AC #2D70DA

Accessibility & contrast

On white

10.89

#153B78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#153B78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153B78

10.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153B78	#FFFFFF	#000000	##FFFFFF
##153B78	1.00	10.89	1.93	10.89
#FFFFFF	10.89	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#17427A

Deuteranopia (green-blind)

#003977

Tritanopia (blue-blind)

#004A53

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #153b78;
/* rgb */ color: rgb(21, 59, 120);
/* oklch */ color: oklch(36.3% 0.113 259.6);

Tailwind

colors: {
  custom: {
    50: '#64709f',
    500: '#153b78',
    950: '#000000',
  },
}

SCSS

$custom: #153b78;
$custom-light: #64709f;
$custom-dark: #000000;

JSON

{
  "hex": "#153b78",
  "rgb": {
    "r": 21,
    "g": 59,
    "b": 120
  },
  "hsl": {
    "h": 216.97,
    "s": 70.213,
    "l": 27.647
  },
  "oklch": {
    "l": 0.36288,
    "c": 0.11301,
    "h": 259.6
  },
  "luminance": 0.04643
}

Semantic roles & 50–950 ramp

primary

#153B78

secondary

#AE823B

accent

#A93BED

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #153B78

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

Preview Lab → · Contrast checker → · Palette generator →