#2A55B3#2A55B3

#2A55B3 is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.5% C 0.157 H 263.2°. Best body text is #FFFFFF at 6.89:1 contrast (WCAG AA passes).

Color values

HEX	#2A55B3
RGB	rgb(42, 85, 179)
HSL	hsl(221, 62%, 43%)
HSV	hsv(221, 77%, 70%)
CMYK	cmyk(76.5%, 52.5%, 0%, 29.8%)
CIE-LAB	lab(38.27, 19.22, -54.25)
CIE-LCH	lch(38.27, 57.55, 289.51°)
OKLab	oklab(47.46% -0.0186 -0.1562)
OKLCH	oklch(47.46% 0.157 263.2)
XYZ	xyz(12.3371, 10.2425, 43.9659)
Luminance	0.1024 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A55B3 #B3882A

analogous

#2A99B3 #2A55B3 #432AB3

triadic

#2A55B3 #B32A55 #55B32A

tetradic

#2A55B3 #B32A99 #B3882A #2AB343

square

#2A55B3 #B32A99 #B3882A #2AB343

split-complementary

#2A55B3 #B3432A #99B32A

monochromatic

#132650 #1E3D81 #2A55B3 #4673D4 #7898DF

Accessibility & contrast

On white

6.89

#2A55B3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#2A55B3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2A55B3

6.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A55B3	#FFFFFF	#000000	##FFFFFF
##2A55B3	1.00	6.89	3.05	6.89
#FFFFFF	6.89	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1461B6

Deuteranopia (green-blind)

#0054B1

Tritanopia (blue-blind)

#006C7C

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #2a55b3;
/* rgb */ color: rgb(42, 85, 179);
/* oklch */ color: oklch(47.5% 0.157 263.2);

Tailwind

colors: {
  custom: {
    50: '#7884ca',
    500: '#2a55b3',
    950: '#000000',
  },
}

SCSS

$custom: #2a55b3;
$custom-light: #7884ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2a55b3",
  "rgb": {
    "r": 42,
    "g": 85,
    "b": 179
  },
  "hsl": {
    "h": 221.168,
    "s": 61.991,
    "l": 43.333
  },
  "oklch": {
    "l": 0.47457,
    "c": 0.15731,
    "h": 263.2
  },
  "luminance": 0.10244
}

Semantic roles & 50–950 ramp

primary

#2A55B3

secondary

#C7AC72

accent

#B243E5

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2A55B3

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

Preview Lab → · Contrast checker → · Palette generator →