#2147B4#2147B4

#2147B4 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.4% C 0.178 H 265.0°. Best body text is #FFFFFF at 8.00:1 contrast (WCAG AA passes).

Color values

HEX	#2147B4
RGB	rgb(33, 71, 180)
HSL	hsl(224, 69%, 42%)
HSV	hsv(224, 82%, 71%)
CMYK	cmyk(81.7%, 60.6%, 0%, 29.4%)
CIE-LAB	lab(34.24, 27.96, -61.42)
CIE-LCH	lch(34.24, 67.48, 294.48°)
OKLab	oklab(44.35% -0.0155 -0.1776)
OKLCH	oklch(44.35% 0.178 265)
XYZ	xyz(11.1157, 8.1238, 44.1534)
Luminance	0.0813 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2147B4 #B48E21

analogous

#2191B4 #2147B4 #4521B4

triadic

#2147B4 #B42147 #47B421

tetradic

#2147B4 #B42191 #B48E21 #21B445

square

#2147B4 #B42191 #B48E21 #21B445

split-complementary

#2147B4 #B44521 #91B421

monochromatic

#0E1E4D #183380 #2147B4 #3862DA #6B8BE4

Accessibility & contrast

On white

8.00

#2147B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#2147B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2147B4

8.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2147B4	#FFFFFF	#000000	##FFFFFF
##2147B4	1.00	8.00	2.63	8.00
#FFFFFF	8.00	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	8.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058B8

Deuteranopia (green-blind)

#004AB2

Tritanopia (blue-blind)

#006376

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #2147b4;
/* rgb */ color: rgb(33, 71, 180);
/* oklch */ color: oklch(44.4% 0.178 265.0);

Tailwind

colors: {
  custom: {
    50: '#7679cb',
    500: '#2147b4',
    950: '#000000',
  },
}

SCSS

$custom: #2147b4;
$custom-light: #7679cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2147b4",
  "rgb": {
    "r": 33,
    "g": 71,
    "b": 180
  },
  "hsl": {
    "h": 224.49,
    "s": 69.014,
    "l": 41.765
  },
  "oklch": {
    "l": 0.44352,
    "c": 0.17831,
    "h": 265
  },
  "luminance": 0.08125
}

Semantic roles & 50–950 ramp

primary

#2147B4

secondary

#CAB067

accent

#BE3CEC

background

#F7F7FC

surface

#EEEDF9

border

#C9C8D2

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #2147B4

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

Preview Lab → · Contrast checker → · Palette generator →