#2A55BB#2A55BB

#2A55BB is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.1% C 0.168 H 263.9°. Best body text is #FFFFFF at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#2A55BB
RGB	rgb(42, 85, 187)
HSL	hsl(222, 63%, 45%)
HSV	hsv(222, 78%, 73%)
CMYK	cmyk(77.5%, 54.5%, 0%, 26.7%)
CIE-LAB	lab(38.86, 22.28, -58.01)
CIE-LCH	lch(38.86, 62.14, 291.01°)
OKLab	oklab(48.08% -0.0179 -0.1672)
OKLCH	oklch(48.08% 0.168 263.9)
XYZ	xyz(13.1698, 10.5756, 48.3513)
Luminance	0.1058 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A55BB #BB902A

analogous

#2A9EBB #2A55BB #482ABB

triadic

#2A55BB #BB2A55 #55BB2A

tetradic

#2A55BB #BB2A9E #BB902A #2ABB48

square

#2A55BB #BB2A9E #BB902A #2ABB48

split-complementary

#2A55BB #BB482A #9EBB2A

monochromatic

#142857 #1F3E89 #2A55BB #4C75D7 #7D9BE2

Accessibility & contrast

On white

6.74

#2A55BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#2A55BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2A55BB

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A55BB	#FFFFFF	#000000	##FFFFFF
##2A55BB	1.00	6.74	3.12	6.74
#FFFFFF	6.74	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062BF

Deuteranopia (green-blind)

#0055B9

Tritanopia (blue-blind)

#006E7F

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #2a55bb;
/* rgb */ color: rgb(42, 85, 187);
/* oklch */ color: oklch(48.1% 0.168 263.9);

Tailwind

colors: {
  custom: {
    50: '#7a84d0',
    500: '#2a55bb',
    950: '#000000',
  },
}

SCSS

$custom: #2a55bb;
$custom-light: #7a84d0;
$custom-dark: #000000;

JSON

{
  "hex": "#2a55bb",
  "rgb": {
    "r": 42,
    "g": 85,
    "b": 187
  },
  "hsl": {
    "h": 222.207,
    "s": 63.319,
    "l": 44.902
  },
  "oklch": {
    "l": 0.48083,
    "c": 0.1682,
    "h": 263.9
  },
  "luminance": 0.10577
}

Semantic roles & 50–950 ramp

primary

#2A55BB

secondary

#CAB176

accent

#B541E6

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0B0A14

muted

#7C7C82

Preview Lab

Preview with #2A55BB

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

Preview Lab → · Contrast checker → · Palette generator →