#153A7D#153A7D

#153A7D is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.5% C 0.122 H 261.1°. Best body text is #FFFFFF at 10.86:1 contrast (WCAG AA passes).

Color values

HEX	#153A7D
RGB	rgb(21, 58, 125)
HSL	hsl(219, 71%, 29%)
HSV	hsv(219, 83%, 49%)
CMYK	cmyk(83.2%, 53.6%, 0%, 51%)
CIE-LAB	lab(25.76, 13.66, -41.70)
CIE-LCH	lch(25.76, 43.88, 288.14°)
OKLab	oklab(36.46% -0.0188 -0.1201)
OKLCH	oklch(36.46% 0.122 261.1)
XYZ	xyz(5.5226, 4.6655, 20.0075)
Luminance	0.0467 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153A7D #7D5815

analogous

#156E7D #153A7D #24157D

triadic

#153A7D #7D153A #3A7D15

tetradic

#153A7D #7D156E #7D5815 #157D24

square

#153A7D #7D156E #7D5815 #157D24

split-complementary

#153A7D #7D2415 #6E7D15

monochromatic

#040C1A #0C2249 #153A7D #1E52B1 #306DDC

Accessibility & contrast

On white

10.86

#153A7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#153A7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153A7D

10.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153A7D	#FFFFFF	#000000	##FFFFFF
##153A7D	1.00	10.86	1.93	10.86
#FFFFFF	10.86	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0C427F

Deuteranopia (green-blind)

#00397C

Tritanopia (blue-blind)

#004A55

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #153a7d;
/* rgb */ color: rgb(21, 58, 125);
/* oklch */ color: oklch(36.5% 0.122 261.1);

Tailwind

colors: {
  custom: {
    50: '#656fa3',
    500: '#153a7d',
    950: '#000000',
  },
}

SCSS

$custom: #153a7d;
$custom-light: #656fa3;
$custom-dark: #000000;

JSON

{
  "hex": "#153a7d",
  "rgb": {
    "r": 21,
    "g": 58,
    "b": 125
  },
  "hsl": {
    "h": 218.654,
    "s": 71.233,
    "l": 28.627
  },
  "oklch": {
    "l": 0.36459,
    "c": 0.12161,
    "h": 261.1
  },
  "luminance": 0.04666
}

Semantic roles & 50–950 ramp

primary

#153A7D

secondary

#B2883C

accent

#AE3AEE

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #153A7D

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

Preview Lab → · Contrast checker → · Palette generator →