#2555B9#2555B9

#2555B9 is a mid, vivid blue. Relative luminance 0.104; OKLCH L 47.7% C 0.167 H 262.6°. Best body text is #FFFFFF at 6.82:1 contrast (WCAG AA passes).

Color values

HEX	#2555B9
RGB	rgb(37, 85, 185)
HSL	hsl(221, 67%, 44%)
HSV	hsv(221, 80%, 73%)
CMYK	cmyk(80%, 54.1%, 0%, 27.5%)
CIE-LAB	lab(38.54, 20.99, -57.36)
CIE-LCH	lch(38.54, 61.08, 290.10°)
OKLab	oklab(47.75% -0.0215 -0.1654)
OKLCH	oklch(47.75% 0.167 262.6)
XYZ	xyz(12.7653, 10.3916, 47.2225)
Luminance	0.1039 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2555B9 #B98925

analogous

#259FB9 #2555B9 #3F25B9

triadic

#2555B9 #B92555 #55B925

tetradic

#2555B9 #B9259F #B98925 #25B93F

square

#2555B9 #B9259F #B98925 #25B93F

split-complementary

#2555B9 #B93F25 #9FB925

monochromatic

#112653 #1B3E86 #2555B9 #4273D9 #7599E3

Accessibility & contrast

On white

6.82

#2555B9 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.08

#2555B9 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2555B9

6.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2555B9	#FFFFFF	#000000	##FFFFFF
##2555B9	1.00	6.82	3.08	6.82
#FFFFFF	6.82	1.00	21.00	1.00
#000000	3.08	21.00	1.00	21.00
##FFFFFF	6.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062BD

Deuteranopia (green-blind)

#0054B7

Tritanopia (blue-blind)

#006E7E

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #2555b9;
/* rgb */ color: rgb(37, 85, 185);
/* oklch */ color: oklch(47.7% 0.167 262.6);

Tailwind

colors: {
  custom: {
    50: '#7884cf',
    500: '#2555b9',
    950: '#000000',
  },
}

SCSS

$custom: #2555b9;
$custom-light: #7884cf;
$custom-dark: #000000;

JSON

{
  "hex": "#2555b9",
  "rgb": {
    "r": 37,
    "g": 85,
    "b": 185
  },
  "hsl": {
    "h": 220.541,
    "s": 66.667,
    "l": 43.529
  },
  "oklch": {
    "l": 0.47746,
    "c": 0.16683,
    "h": 262.6
  },
  "luminance": 0.10393
}

Semantic roles & 50–950 ramp

primary

#2555B9

secondary

#CBAD6F

accent

#B23EEA

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0A0A14

muted

#7C7C82

Preview Lab

Preview with #2555B9

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

Preview Lab → · Contrast checker → · Palette generator →