#2A55B5#2A55B5

#2A55B5 is a mid, vivid blue. Relative luminance 0.103; OKLCH L 47.6% C 0.160 H 263.4°. Best body text is #FFFFFF at 6.85:1 contrast (WCAG AA passes).

Color values

HEX	#2A55B5
RGB	rgb(42, 85, 181)
HSL	hsl(221, 62%, 44%)
HSV	hsv(221, 77%, 71%)
CMYK	cmyk(76.8%, 53%, 0%, 29%)
CIE-LAB	lab(38.42, 19.99, -55.19)
CIE-LCH	lch(38.42, 58.70, 289.91°)
OKLab	oklab(47.61% -0.0184 -0.159)
OKLCH	oklch(47.61% 0.16 263.4)
XYZ	xyz(12.5409, 10.3240, 45.0389)
Luminance	0.1032 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A55B5 #B58A2A

analogous

#2A9AB5 #2A55B5 #442AB5

triadic

#2A55B5 #B52A55 #55B52A

tetradic

#2A55B5 #B52A9A #B58A2A #2AB544

square

#2A55B5 #B52A9A #B58A2A #2AB544

split-complementary

#2A55B5 #B5442A #9AB52A

monochromatic

#132652 #1E3E83 #2A55B5 #4873D4 #7999E0

Accessibility & contrast

On white

6.85

#2A55B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#2A55B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2A55B5

6.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A55B5	#FFFFFF	#000000	##FFFFFF
##2A55B5	1.00	6.85	3.07	6.85
#FFFFFF	6.85	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E61B8

Deuteranopia (green-blind)

#0054B3

Tritanopia (blue-blind)

#006C7D

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #2a55b5;
/* rgb */ color: rgb(42, 85, 181);
/* oklch */ color: oklch(47.6% 0.160 263.4);

Tailwind

colors: {
  custom: {
    50: '#7884cc',
    500: '#2a55b5',
    950: '#000000',
  },
}

SCSS

$custom: #2a55b5;
$custom-light: #7884cc;
$custom-dark: #000000;

JSON

{
  "hex": "#2a55b5",
  "rgb": {
    "r": 42,
    "g": 85,
    "b": 181
  },
  "hsl": {
    "h": 221.439,
    "s": 62.332,
    "l": 43.725
  },
  "oklch": {
    "l": 0.47612,
    "c": 0.16004,
    "h": 263.4
  },
  "luminance": 0.10325
}

Semantic roles & 50–950 ramp

primary

#2A55B5

secondary

#C8AE73

accent

#B342E5

background

#F8F8FC

surface

#EFEFF9

border

#CACAD2

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2A55B5

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

Preview Lab → · Contrast checker → · Palette generator →