#2155C2#2155C2

#2155C2 is a mid, vivid blue. Relative luminance 0.107; OKLCH L 48.3% C 0.180 H 262.6°. Best body text is #FFFFFF at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#2155C2
RGB	rgb(33, 85, 194)
HSL	hsl(221, 71%, 45%)
HSV	hsv(221, 83%, 76%)
CMYK	cmyk(83%, 56.2%, 0%, 23.9%)
CIE-LAB	lab(39.09, 24.11, -61.72)
CIE-LCH	lch(39.09, 66.26, 291.34°)
OKLab	oklab(48.35% -0.0233 -0.1783)
OKLCH	oklch(48.35% 0.18 262.6)
XYZ	xyz(13.6098, 10.7137, 52.3791)
Luminance	0.1071 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2155C2 #C28E21

analogous

#21A6C2 #2155C2 #3E21C2

triadic

#2155C2 #C22155 #55C221

tetradic

#2155C2 #C221A6 #C28E21 #21C23E

square

#2155C2 #C221A6 #C28E21 #21C23E

split-complementary

#2155C2 #C23E21 #A6C221

monochromatic

#0F2759 #183E8E #2155C2 #4174DF #769BE8

Accessibility & contrast

On white

6.68

#2155C2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#2155C2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2155C2

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2155C2	#FFFFFF	#000000	##FFFFFF
##2155C2	1.00	6.68	3.14	6.68
#FFFFFF	6.68	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0064C6

Deuteranopia (green-blind)

#0055C0

Tritanopia (blue-blind)

#007083

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #2155c2;
/* rgb */ color: rgb(33, 85, 194);
/* oklch */ color: oklch(48.3% 0.180 262.6);

Tailwind

colors: {
  custom: {
    50: '#7984d5',
    500: '#2155c2',
    950: '#000000',
  },
}

SCSS

$custom: #2155c2;
$custom-light: #7984d5;
$custom-dark: #000000;

JSON

{
  "hex": "#2155c2",
  "rgb": {
    "r": 33,
    "g": 85,
    "b": 194
  },
  "hsl": {
    "h": 220.621,
    "s": 70.925,
    "l": 44.51
  },
  "oklch": {
    "l": 0.48347,
    "c": 0.17982,
    "h": 262.6
  },
  "luminance": 0.10715
}

Semantic roles & 50–950 ramp

primary

#2155C2

secondary

#CFB070

accent

#B43AEE

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0B0A14

muted

#7C7C83

Preview Lab

Preview with #2155C2

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

Preview Lab → · Contrast checker → · Palette generator →