#2155AD#2155AD

#2155AD is a mid, vivid blue. Relative luminance 0.098; OKLCH L 46.7% C 0.152 H 260.3°. Best body text is #FFFFFF at 7.08:1 contrast (WCAG AA passes).

Color values

HEX	#2155AD
RGB	rgb(33, 85, 173)
HSL	hsl(218, 68%, 40%)
HSV	hsv(218, 81%, 68%)
CMYK	cmyk(80.9%, 50.9%, 0%, 32.2%)
CIE-LAB	lab(37.55, 15.89, -51.89)
CIE-LCH	lch(37.55, 54.27, 287.02°)
OKLab	oklab(46.68% -0.0255 -0.1494)
OKLCH	oklch(46.68% 0.152 260.3)
XYZ	xyz(11.4158, 9.8361, 40.8240)
Luminance	0.0984 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2155AD #AD7921

analogous

#219BAD #2155AD #3321AD

triadic

#2155AD #AD2155 #55AD21

tetradic

#2155AD #AD219B #AD7921 #21AD33

square

#2155AD #AD219B #AD7921 #21AD33

split-complementary

#2155AD #AD3321 #9BAD21

monochromatic

#0D2246 #173C7A #2155AD #3370D8 #6694E2

Accessibility & contrast

On white

7.08

#2155AD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#2155AD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2155AD

7.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2155AD	#FFFFFF	#000000	##FFFFFF
##2155AD	1.00	7.08	2.97	7.08
#FFFFFF	7.08	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D5FB0

Deuteranopia (green-blind)

#0052AB

Tritanopia (blue-blind)

#006A79

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #2155ad;
/* rgb */ color: rgb(33, 85, 173);
/* oklch */ color: oklch(46.7% 0.152 260.3);

Tailwind

colors: {
  custom: {
    50: '#7484c6',
    500: '#2155ad',
    950: '#000000',
  },
}

SCSS

$custom: #2155ad;
$custom-light: #7484c6;
$custom-dark: #000000;

JSON

{
  "hex": "#2155ad",
  "rgb": {
    "r": 33,
    "g": 85,
    "b": 173
  },
  "hsl": {
    "h": 217.714,
    "s": 67.961,
    "l": 40.392
  },
  "oklch": {
    "l": 0.46682,
    "c": 0.15156,
    "h": 260.3
  },
  "luminance": 0.09837
}

Semantic roles & 50–950 ramp

primary

#2155AD

secondary

#C7A262

accent

#AA3DEB

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2155AD

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

Preview Lab → · Contrast checker → · Palette generator →