#2147B3#2147B3

#2147B3 is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.3% C 0.177 H 265.0°. Best body text is #FFFFFF at 8.03:1 contrast (WCAG AA passes).

Color values

HEX	#2147B3
RGB	rgb(33, 71, 179)
HSL	hsl(224, 69%, 42%)
HSV	hsv(224, 82%, 70%)
CMYK	cmyk(81.6%, 60.3%, 0%, 29.8%)
CIE-LAB	lab(34.16, 27.58, -60.96)
CIE-LCH	lch(34.16, 66.91, 294.34°)
OKLab	oklab(44.26% -0.0155 -0.1763)
OKLCH	oklch(44.26% 0.177 265)
XYZ	xyz(11.0142, 8.0832, 43.6188)
Luminance	0.0808 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2147B3 #B38D21

analogous

#2190B3 #2147B3 #4421B3

triadic

#2147B3 #B32147 #47B321

tetradic

#2147B3 #B32190 #B38D21 #21B344

square

#2147B3 #B32190 #B38D21 #21B344

split-complementary

#2147B3 #B34421 #90B321

monochromatic

#0E1E4C #17337F #2147B3 #3762DA #6B8AE4

Accessibility & contrast

On white

8.03

#2147B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#2147B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2147B3

8.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2147B3	#FFFFFF	#000000	##FFFFFF
##2147B3	1.00	8.03	2.62	8.03
#FFFFFF	8.03	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057B7

Deuteranopia (green-blind)

#004AB1

Tritanopia (blue-blind)

#006376

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #2147b3;
/* rgb */ color: rgb(33, 71, 179);
/* oklch */ color: oklch(44.3% 0.177 265.0);

Tailwind

colors: {
  custom: {
    50: '#7679cb',
    500: '#2147b3',
    950: '#000000',
  },
}

SCSS

$custom: #2147b3;
$custom-light: #7679cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2147b3",
  "rgb": {
    "r": 33,
    "g": 71,
    "b": 179
  },
  "hsl": {
    "h": 224.384,
    "s": 68.868,
    "l": 41.569
  },
  "oklch": {
    "l": 0.44264,
    "c": 0.17698,
    "h": 265
  },
  "luminance": 0.08084
}

Semantic roles & 50–950 ramp

primary

#2147B3

secondary

#CAB066

accent

#BE3CEC

background

#F7F7FC

surface

#EEEDF9

border

#C9C8D2

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #2147B3

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

Preview Lab → · Contrast checker → · Palette generator →