#2155BD#2155BD

#2155BD is a mid, vivid blue. Relative luminance 0.105; OKLCH L 47.9% C 0.173 H 262.1°. Best body text is #FFFFFF at 6.78:1 contrast (WCAG AA passes).

Color values

HEX	#2155BD
RGB	rgb(33, 85, 189)
HSL	hsl(220, 70%, 44%)
HSV	hsv(220, 83%, 74%)
CMYK	cmyk(82.5%, 55%, 0%, 25.9%)
CIE-LAB	lab(38.71, 22.16, -59.42)
CIE-LCH	lch(38.71, 63.42, 290.46°)
OKLab	oklab(47.94% -0.0237 -0.1715)
OKLCH	oklch(47.94% 0.173 262.1)
XYZ	xyz(13.0577, 10.4929, 49.4714)
Luminance	0.1049 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2155BD #BD8921

analogous

#21A3BD #2155BD #3B21BD

triadic

#2155BD #BD2155 #55BD21

tetradic

#2155BD #BD21A3 #BD8921 #21BD3B

square

#2155BD #BD21A3 #BD8921 #21BD3B

split-complementary

#2155BD #BD3B21 #A3BD21

monochromatic

#0F2655 #183E89 #2155BD #3E73DD #7299E6

Accessibility & contrast

On white

6.78

#2155BD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#2155BD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2155BD

6.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2155BD	#FFFFFF	#000000	##FFFFFF
##2155BD	1.00	6.78	3.10	6.78
#FFFFFF	6.78	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063C1

Deuteranopia (green-blind)

#0054BB

Tritanopia (blue-blind)

#006F80

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #2155bd;
/* rgb */ color: rgb(33, 85, 189);
/* oklch */ color: oklch(47.9% 0.173 262.1);

Tailwind

colors: {
  custom: {
    50: '#7784d2',
    500: '#2155bd',
    950: '#000000',
  },
}

SCSS

$custom: #2155bd;
$custom-light: #7784d2;
$custom-dark: #000000;

JSON

{
  "hex": "#2155bd",
  "rgb": {
    "r": 33,
    "g": 85,
    "b": 189
  },
  "hsl": {
    "h": 220,
    "s": 70.27,
    "l": 43.529
  },
  "oklch": {
    "l": 0.47939,
    "c": 0.17318,
    "h": 262.1
  },
  "luminance": 0.10494
}

Semantic roles & 50–950 ramp

primary

#2155BD

secondary

#CDAD6D

accent

#B23BED

background

#F8F8FD

surface

#EFEFFA

border

#CACAD3

text

#0A0A14

muted

#7C7C83

Preview Lab

Preview with #2155BD

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

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