#2A55B0#2A55B0

#2A55B0 is a mid, vivid blue. Relative luminance 0.101; OKLCH L 47.2% C 0.153 H 262.9°. Best body text is #FFFFFF at 6.94:1 contrast (WCAG AA passes).

Color values

HEX	#2A55B0
RGB	rgb(42, 85, 176)
HSL	hsl(221, 61%, 43%)
HSV	hsv(221, 76%, 69%)
CMYK	cmyk(76.1%, 51.7%, 0%, 31%)
CIE-LAB	lab(38.06, 18.07, -52.82)
CIE-LCH	lch(38.06, 55.83, 288.88°)
OKLab	oklab(47.23% -0.019 -0.152)
OKLCH	oklch(47.23% 0.153 262.9)
XYZ	xyz(12.0370, 10.1225, 42.3853)
Luminance	0.1012 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A55B0 #B0852A

analogous

#2A98B0 #2A55B0 #422AB0

triadic

#2A55B0 #B02A55 #55B02A

tetradic

#2A55B0 #B02A98 #B0852A #2AB042

square

#2A55B0 #B02A98 #B0852A #2AB042

split-complementary

#2A55B0 #B0422A #98B02A

monochromatic

#12254D #1E3D7F #2A55B0 #4572D3 #7698DE

Accessibility & contrast

On white

6.94

#2A55B0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.02

#2A55B0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2A55B0

6.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A55B0	#FFFFFF	#000000	##FFFFFF
##2A55B0	1.00	6.94	3.02	6.94
#FFFFFF	6.94	1.00	21.00	1.00
#000000	3.02	21.00	1.00	21.00
##FFFFFF	6.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A60B3

Deuteranopia (green-blind)

#0054AE

Tritanopia (blue-blind)

#006B7A

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #2a55b0;
/* rgb */ color: rgb(42, 85, 176);
/* oklch */ color: oklch(47.2% 0.153 262.9);

Tailwind

colors: {
  custom: {
    50: '#7784c8',
    500: '#2a55b0',
    950: '#000000',
  },
}

SCSS

$custom: #2a55b0;
$custom-light: #7784c8;
$custom-dark: #000000;

JSON

{
  "hex": "#2a55b0",
  "rgb": {
    "r": 42,
    "g": 85,
    "b": 176
  },
  "hsl": {
    "h": 220.746,
    "s": 61.468,
    "l": 42.745
  },
  "oklch": {
    "l": 0.47228,
    "c": 0.15318,
    "h": 262.9
  },
  "luminance": 0.10124
}

Semantic roles & 50–950 ramp

primary

#2A55B0

secondary

#C6AA70

accent

#B143E5

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2A55B0

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

Preview Lab → · Contrast checker → · Palette generator →