#2B5BB2#2B5BB2

#2B5BB2 is a mid, vivid blue. Relative luminance 0.112; OKLCH L 48.7% C 0.148 H 261.1°. Best body text is #FFFFFF at 6.48:1 contrast (WCAG AA passes).

Color values

HEX	#2B5BB2
RGB	rgb(43, 91, 178)
HSL	hsl(219, 61%, 43%)
HSV	hsv(219, 76%, 70%)
CMYK	cmyk(75.8%, 48.9%, 0%, 30.2%)
CIE-LAB	lab(39.93, 15.01, -50.98)
CIE-LCH	lch(39.93, 53.15, 286.41°)
OKLab	oklab(48.71% -0.0228 -0.1465)
OKLCH	oklch(48.71% 0.148 261.1)
XYZ	xyz(12.7703, 11.2087, 43.6013)
Luminance	0.1121 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B5BB2 #B2822B

analogous

#2B9EB2 #2B5BB2 #3F2BB2

triadic

#2B5BB2 #B22B5B #5BB22B

tetradic

#2B5BB2 #B22B9E #B2822B #2BB23F

square

#2B5BB2 #B22B9E #B2822B #2BB23F

split-complementary

#2B5BB2 #B23F2B #9EB22B

monochromatic

#13294F #1F4281 #2B5BB2 #4879D3 #799DDF

Accessibility & contrast

On white

6.48

#2B5BB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.24

#2B5BB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B5BB2

6.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B5BB2	#FFFFFF	#000000	##FFFFFF
##2B5BB2	1.00	6.48	3.24	6.48
#FFFFFF	6.48	1.00	21.00	1.00
#000000	3.24	21.00	1.00	21.00
##FFFFFF	6.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2965B5

Deuteranopia (green-blind)

#0058B0

Tritanopia (blue-blind)

#00707E

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #2b5bb2;
/* rgb */ color: rgb(43, 91, 178);
/* oklch */ color: oklch(48.7% 0.148 261.1);

Tailwind

colors: {
  custom: {
    50: '#7888ca',
    500: '#2b5bb2',
    950: '#000000',
  },
}

SCSS

$custom: #2b5bb2;
$custom-light: #7888ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2b5bb2",
  "rgb": {
    "r": 43,
    "g": 91,
    "b": 178
  },
  "hsl": {
    "h": 218.667,
    "s": 61.086,
    "l": 43.333
  },
  "oklch": {
    "l": 0.48709,
    "c": 0.14824,
    "h": 261.1
  },
  "luminance": 0.1121
}

Semantic roles & 50–950 ramp

primary

#2B5BB2

secondary

#C7A972

accent

#AB44E4

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2B5BB2

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

Preview Lab → · Contrast checker → · Palette generator →