#2B55B2#2B55B2

#2B55B2 is a mid, vivid blue. Relative luminance 0.102; OKLCH L 47.4% C 0.156 H 263.4°. Best body text is #FFFFFF at 6.90:1 contrast (WCAG AA passes).

Color values

HEX	#2B55B2
RGB	rgb(43, 85, 178)
HSL	hsl(221, 61%, 43%)
HSV	hsv(221, 76%, 70%)
CMYK	cmyk(75.8%, 52.2%, 0%, 30.2%)
CIE-LAB	lab(38.24, 18.96, -53.71)
CIE-LCH	lch(38.24, 56.96, 289.44°)
OKLab	oklab(47.42% -0.018 -0.1546)
OKLCH	oklch(47.42% 0.156 263.4)
XYZ	xyz(12.2778, 10.2236, 43.4371)
Luminance	0.1022 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B55B2 #B2882B

analogous

#2B98B2 #2B55B2 #442BB2

triadic

#2B55B2 #B22B55 #55B22B

tetradic

#2B55B2 #B22B98 #B2882B #2BB244

square

#2B55B2 #B22B98 #B2882B #2BB244

split-complementary

#2B55B2 #B2442B #98B22B

monochromatic

#13264F #1F3D81 #2B55B2 #4873D3 #7998DF

Accessibility & contrast

On white

6.90

#2B55B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#2B55B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B55B2

6.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B55B2	#FFFFFF	#000000	##FFFFFF
##2B55B2	1.00	6.90	3.05	6.90
#FFFFFF	6.90	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1661B5

Deuteranopia (green-blind)

#0054B0

Tritanopia (blue-blind)

#006B7B

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #2b55b2;
/* rgb */ color: rgb(43, 85, 178);
/* oklch */ color: oklch(47.4% 0.156 263.4);

Tailwind

colors: {
  custom: {
    50: '#7884ca',
    500: '#2b55b2',
    950: '#000000',
  },
}

SCSS

$custom: #2b55b2;
$custom-light: #7884ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2b55b2",
  "rgb": {
    "r": 43,
    "g": 85,
    "b": 178
  },
  "hsl": {
    "h": 221.333,
    "s": 61.086,
    "l": 43.333
  },
  "oklch": {
    "l": 0.4742,
    "c": 0.15564,
    "h": 263.4
  },
  "luminance": 0.10225
}

Semantic roles & 50–950 ramp

primary

#2B55B2

secondary

#C7AC72

accent

#B244E4

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2B55B2

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

Preview Lab → · Contrast checker → · Palette generator →