#2B5FB2#2B5FB2

#2B5FB2 is a mid, vivid blue. Relative luminance 0.119; OKLCH L 49.6% C 0.143 H 259.5°. Best body text is #FFFFFF at 6.21:1 contrast (WCAG AA passes).

Color values

HEX	#2B5FB2
RGB	rgb(43, 95, 178)
HSL	hsl(217, 61%, 43%)
HSV	hsv(217, 76%, 70%)
CMYK	cmyk(75.8%, 46.6%, 0%, 30.2%)
CIE-LAB	lab(41.07, 12.41, -49.14)
CIE-LCH	lch(41.07, 50.69, 284.17°)
OKLab	oklab(49.59% -0.0262 -0.141)
OKLCH	oklch(49.59% 0.143 259.5)
XYZ	xyz(13.1214, 11.9109, 43.7183)
Luminance	0.1191 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B5FB2 #B27E2B

analogous

#2BA2B2 #2B5FB2 #3A2BB2

triadic

#2B5FB2 #B22B5F #5FB22B

tetradic

#2B5FB2 #B22BA2 #B27E2B #2BB23A

square

#2B5FB2 #B22BA2 #B27E2B #2BB23A

split-complementary

#2B5FB2 #B23A2B #A2B22B

monochromatic

#132A4F #1F4581 #2B5FB2 #487DD3 #79A0DF

Accessibility & contrast

On white

6.21

#2B5FB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#2B5FB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B5FB2

6.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B5FB2	#FFFFFF	#000000	##FFFFFF
##2B5FB2	1.00	6.21	3.38	6.21
#FFFFFF	6.21	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3367B5

Deuteranopia (green-blind)

#125BB0

Tritanopia (blue-blind)

#007380

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #2b5fb2;
/* rgb */ color: rgb(43, 95, 178);
/* oklch */ color: oklch(49.6% 0.143 259.5);

Tailwind

colors: {
  custom: {
    50: '#778bc9',
    500: '#2b5fb2',
    950: '#000000',
  },
}

SCSS

$custom: #2b5fb2;
$custom-light: #778bc9;
$custom-dark: #000000;

JSON

{
  "hex": "#2b5fb2",
  "rgb": {
    "r": 43,
    "g": 95,
    "b": 178
  },
  "hsl": {
    "h": 216.889,
    "s": 61.086,
    "l": 43.333
  },
  "oklch": {
    "l": 0.49588,
    "c": 0.14339,
    "h": 259.5
  },
  "luminance": 0.11912
}

Semantic roles & 50–950 ramp

primary

#2B5FB2

secondary

#C7A672

accent

#A644E4

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #2B5FB2

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

Preview Lab → · Contrast checker → · Palette generator →