#2155AA#2155AA

#2155AA is a mid, vivid blue. Relative luminance 0.097; OKLCH L 46.5% C 0.147 H 259.9°. Best body text is #FFFFFF at 7.13:1 contrast (WCAG AA passes).

Color values

HEX	#2155AA
RGB	rgb(33, 85, 170)
HSL	hsl(217, 67%, 40%)
HSV	hsv(217, 81%, 67%)
CMYK	cmyk(80.6%, 50%, 0%, 33.3%)
CIE-LAB	lab(37.34, 14.71, -50.45)
CIE-LCH	lch(37.34, 52.55, 286.25°)
OKLab	oklab(46.46% -0.0259 -0.1452)
OKLCH	oklch(46.46% 0.147 259.9)
XYZ	xyz(11.1288, 9.7213, 39.3123)
Luminance	0.0972 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2155AA #AA7621

analogous

#219AAA #2155AA #3121AA

triadic

#2155AA #AA2155 #55AA21

tetradic

#2155AA #AA219A #AA7621 #21AA31

square

#2155AA #AA219A #AA7621 #21AA31

split-complementary

#2155AA #AA3121 #9AAA21

monochromatic

#0D2243 #173B77 #2155AA #3170D7 #6494E1

Accessibility & contrast

On white

7.13

#2155AA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.94

#2155AA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2155AA

7.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2155AA	#FFFFFF	#000000	##FFFFFF
##2155AA	1.00	7.13	2.94	7.13
#FFFFFF	7.13	1.00	21.00	1.00
#000000	2.94	21.00	1.00	21.00
##FFFFFF	7.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#215EAD

Deuteranopia (green-blind)

#0052A8

Tritanopia (blue-blind)

#006A77

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #2155aa;
/* rgb */ color: rgb(33, 85, 170);
/* oklch */ color: oklch(46.5% 0.147 259.9);

Tailwind

colors: {
  custom: {
    50: '#7384c4',
    500: '#2155aa',
    950: '#000000',
  },
}

SCSS

$custom: #2155aa;
$custom-light: #7384c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2155aa",
  "rgb": {
    "r": 33,
    "g": 85,
    "b": 170
  },
  "hsl": {
    "h": 217.226,
    "s": 67.488,
    "l": 39.804
  },
  "oklch": {
    "l": 0.46456,
    "c": 0.14745,
    "h": 259.9
  },
  "luminance": 0.09723
}

Semantic roles & 50–950 ramp

primary

#2155AA

secondary

#C6A061

accent

#A93DEA

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#090A13

muted

#7B7C82

Preview Lab

Preview with #2155AA

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

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