#2148AB#2148AB

#2148AB is a dark, vivid blue. Relative luminance 0.079; OKLCH L 43.8% C 0.165 H 264.3°. Best body text is #FFFFFF at 8.14:1 contrast (WCAG AA passes).

Color values

HEX	#2148AB
RGB	rgb(33, 72, 171)
HSL	hsl(223, 68%, 40%)
HSV	hsv(223, 81%, 67%)
CMYK	cmyk(80.7%, 57.9%, 0%, 32.9%)
CIE-LAB	lab(33.77, 23.81, -56.84)
CIE-LCH	lch(33.77, 61.62, 292.73°)
OKLab	oklab(43.77% -0.0164 -0.1642)
OKLCH	oklch(43.77% 0.165 264.3)
XYZ	xyz(10.2926, 7.8971, 39.5020)
Luminance	0.0790 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2148AB #AB8421

analogous

#218DAB #2148AB #3F21AB

triadic

#2148AB #AB2148 #48AB21

tetradic

#2148AB #AB218D #AB8421 #21AB3F

square

#2148AB #AB218D #AB8421 #21AB3F

split-complementary

#2148AB #AB3F21 #8DAB21

monochromatic

#0D1D44 #173278 #2148AB #3261D7 #6588E1

Accessibility & contrast

On white

8.14

#2148AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#2148AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2148AB

8.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2148AB	#FFFFFF	#000000	##FFFFFF
##2148AB	1.00	8.14	2.58	8.14
#FFFFFF	8.14	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056AE

Deuteranopia (green-blind)

#0049A9

Tritanopia (blue-blind)

#006172

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #2148ab;
/* rgb */ color: rgb(33, 72, 171);
/* oklch */ color: oklch(43.8% 0.165 264.3);

Tailwind

colors: {
  custom: {
    50: '#747ac5',
    500: '#2148ab',
    950: '#000000',
  },
}

SCSS

$custom: #2148ab;
$custom-light: #747ac5;
$custom-dark: #000000;

JSON

{
  "hex": "#2148ab",
  "rgb": {
    "r": 33,
    "g": 72,
    "b": 171
  },
  "hsl": {
    "h": 223.043,
    "s": 67.647,
    "l": 40
  },
  "oklch": {
    "l": 0.43769,
    "c": 0.165,
    "h": 264.3
  },
  "luminance": 0.07898
}

Semantic roles & 50–950 ramp

primary

#2148AB

secondary

#C7AA61

accent

#BA3DEB

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #2148AB

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

Preview Lab → · Contrast checker → · Palette generator →