#2147A8#2147A8

#2147A8 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.3% C 0.162 H 264.4°. Best body text is #FFFFFF at 8.30:1 contrast (WCAG AA passes).

Color values

HEX	#2147A8
RGB	rgb(33, 71, 168)
HSL	hsl(223, 67%, 39%)
HSV	hsv(223, 80%, 66%)
CMYK	cmyk(80.4%, 57.7%, 0%, 34.1%)
CIE-LAB	lab(33.26, 23.31, -55.88)
CIE-LCH	lch(33.26, 60.54, 292.64°)
OKLab	oklab(43.31% -0.0159 -0.1614)
OKLCH	oklch(43.31% 0.162 264.4)
XYZ	xyz(9.9458, 7.6558, 37.9917)
Luminance	0.0766 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2147A8 #A88221

analogous

#218BA8 #2147A8 #3F21A8

triadic

#2147A8 #A82147 #47A821

tetradic

#2147A8 #A8218B #A88221 #21A83F

square

#2147A8 #A8218B #A88221 #21A83F

split-complementary

#2147A8 #A83F21 #8BA821

monochromatic

#0D1C42 #173175 #2147A8 #305FD6 #6386E0

Accessibility & contrast

On white

8.30

#2147A8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#2147A8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2147A8

8.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2147A8	#FFFFFF	#000000	##FFFFFF
##2147A8	1.00	8.30	2.53	8.30
#FFFFFF	8.30	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AB

Deuteranopia (green-blind)

#0048A6

Tritanopia (blue-blind)

#005F70

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2147a8;
/* rgb */ color: rgb(33, 71, 168);
/* oklch */ color: oklch(43.3% 0.162 264.4);

Tailwind

colors: {
  custom: {
    50: '#7379c3',
    500: '#2147a8',
    950: '#000000',
  },
}

SCSS

$custom: #2147a8;
$custom-light: #7379c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2147a8",
  "rgb": {
    "r": 33,
    "g": 71,
    "b": 168
  },
  "hsl": {
    "h": 223.111,
    "s": 67.164,
    "l": 39.412
  },
  "oklch": {
    "l": 0.43309,
    "c": 0.16217,
    "h": 264.4
  },
  "luminance": 0.07657
}

Semantic roles & 50–950 ramp

primary

#2147A8

secondary

#C5A95F

accent

#BA3EEA

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#090912

muted

#7B7B81

Preview Lab

Preview with #2147A8

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

Preview Lab → · Contrast checker → · Palette generator →