#153EB4#153EB4

#153EB4 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.3% C 0.192 H 264.4°. Best body text is #FFFFFF at 8.82:1 contrast (WCAG AA passes).

Color values

HEX	#153EB4
RGB	rgb(21, 62, 180)
HSL	hsl(225, 79%, 39%)
HSV	hsv(225, 88%, 71%)
CMYK	cmyk(88.3%, 65.6%, 0%, 29.4%)
CIE-LAB	lab(31.57, 33.06, -65.79)
CIE-LCH	lch(31.57, 73.63, 296.68°)
OKLab	oklab(42.28% -0.0186 -0.1907)
OKLCH	oklch(42.28% 0.192 264.4)
XYZ	xyz(10.2672, 6.8986, 43.9616)
Luminance	0.0690 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#153EB4 #B48B15

analogous

#158EB4 #153EB4 #3B15B4

triadic

#153EB4 #B4153E #3EB415

tetradic

#153EB4 #B4158E #B48B15 #15B43B

square

#153EB4 #B4158E #B48B15 #15B43B

split-complementary

#153EB4 #B43B15 #8EB415

monochromatic

#081846 #0F2B7D #153EB4 #2154E5 #587EEC

Accessibility & contrast

On white

8.82

#153EB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#153EB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #153EB4

8.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##153EB4	#FFFFFF	#000000	##FFFFFF
##153EB4	1.00	8.82	2.38	8.82
#FFFFFF	8.82	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B8

Deuteranopia (green-blind)

#0043B2

Tritanopia (blue-blind)

#005E73

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #153eb4;
/* rgb */ color: rgb(21, 62, 180);
/* oklch */ color: oklch(42.3% 0.192 264.4);

Tailwind

colors: {
  custom: {
    50: '#7473cc',
    500: '#153eb4',
    950: '#000000',
  },
}

SCSS

$custom: #153eb4;
$custom-light: #7473cc;
$custom-dark: #000000;

JSON

{
  "hex": "#153eb4",
  "rgb": {
    "r": 21,
    "g": 62,
    "b": 180
  },
  "hsl": {
    "h": 224.528,
    "s": 79.104,
    "l": 39.412
  },
  "oklch": {
    "l": 0.42276,
    "c": 0.19163,
    "h": 264.4
  },
  "luminance": 0.069
}

Semantic roles & 50–950 ramp

primary

#153EB4

secondary

#CFB056

accent

#C332F6

background

#F7F6FC

surface

#EEECF9

border

#C9C7D2

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #153EB4

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

Preview Lab → · Contrast checker → · Palette generator →