#153B7A#153B7A

#153B7A is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.4% C 0.116 H 260.1°. Best body text is #FFFFFF at 10.83:1 contrast (WCAG AA passes).

Color values

HEX	#153B7A
RGB	rgb(21, 59, 122)
HSL	hsl(217, 71%, 28%)
HSV	hsv(217, 83%, 48%)
CMYK	cmyk(82.8%, 51.6%, 0%, 52.2%)
CIE-LAB	lab(25.84, 11.70, -39.69)
CIE-LCH	lch(25.84, 41.37, 286.42°)
OKLab	oklab(36.45% -0.02 -0.1142)
OKLCH	oklch(36.45% 0.116 260.1)
XYZ	xyz(5.3848, 4.6919, 19.0304)
Luminance	0.0469 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153B7A #7A5415

analogous

#156D7A #153B7A #22157A

triadic

#153B7A #7A153B #3B7A15

tetradic

#153B7A #7A156D #7A5415 #157A22

square

#153B7A #7A156D #7A5415 #157A22

split-complementary

#153B7A #7A2215 #6D7A15

monochromatic

#040D1A #0C2246 #153B7A #1E54AE #2E6FDB

Accessibility & contrast

On white

10.83

#153B7A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#153B7A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153B7A

10.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153B7A	#FFFFFF	#000000	##FFFFFF
##153B7A	1.00	10.83	1.94	10.83
#FFFFFF	10.83	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#15427C

Deuteranopia (green-blind)

#003979

Tritanopia (blue-blind)

#004A54

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #153b7a;
/* rgb */ color: rgb(21, 59, 122);
/* oklch */ color: oklch(36.4% 0.116 260.1);

Tailwind

colors: {
  custom: {
    50: '#6470a1',
    500: '#153b7a',
    950: '#000000',
  },
}

SCSS

$custom: #153b7a;
$custom-light: #6470a1;
$custom-dark: #000000;

JSON

{
  "hex": "#153b7a",
  "rgb": {
    "r": 21,
    "g": 59,
    "b": 122
  },
  "hsl": {
    "h": 217.426,
    "s": 70.629,
    "l": 28.039
  },
  "oklch": {
    "l": 0.36447,
    "c": 0.11593,
    "h": 260.1
  },
  "luminance": 0.04692
}

Semantic roles & 50–950 ramp

primary

#153B7A

secondary

#AF843B

accent

#AA3AED

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070F

muted

#7A7A7E

Preview Lab

Preview with #153B7A

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

Preview Lab → · Contrast checker → · Palette generator →