#2B5FB1#2B5FB1

#2B5FB1 is a mid, vivid blue. Relative luminance 0.119; OKLCH L 49.5% C 0.142 H 259.3°. Best body text is #FFFFFF at 6.22:1 contrast (WCAG AA passes).

Color values

HEX	#2B5FB1
RGB	rgb(43, 95, 177)
HSL	hsl(217, 61%, 43%)
HSV	hsv(217, 76%, 69%)
CMYK	cmyk(75.7%, 46.3%, 0%, 30.6%)
CIE-LAB	lab(41.01, 12.02, -48.66)
CIE-LCH	lch(41.01, 50.12, 283.88°)
OKLab	oklab(49.52% -0.0264 -0.1395)
OKLCH	oklch(49.52% 0.142 259.3)
XYZ	xyz(13.0214, 11.8709, 43.1915)
Luminance	0.1187 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B5FB1 #B17D2B

analogous

#2BA2B1 #2B5FB1 #3A2BB1

triadic

#2B5FB1 #B12B5F #5FB12B

tetradic

#2B5FB1 #B12BA2 #B17D2B #2BB13A

square

#2B5FB1 #B12BA2 #B17D2B #2BB13A

split-complementary

#2B5FB1 #B13A2B #A2B12B

monochromatic

#132A4F #1F4580 #2B5FB1 #477DD2 #78A0DE

Accessibility & contrast

On white

6.22

#2B5FB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#2B5FB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B5FB1

6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B5FB1	#FFFFFF	#000000	##FFFFFF
##2B5FB1	1.00	6.22	3.37	6.22
#FFFFFF	6.22	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3467B4

Deuteranopia (green-blind)

#145BAF

Tritanopia (blue-blind)

#00727F

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #2b5fb1;
/* rgb */ color: rgb(43, 95, 177);
/* oklch */ color: oklch(49.5% 0.142 259.3);

Tailwind

colors: {
  custom: {
    50: '#778bc9',
    500: '#2b5fb1',
    950: '#000000',
  },
}

SCSS

$custom: #2b5fb1;
$custom-light: #778bc9;
$custom-dark: #000000;

JSON

{
  "hex": "#2b5fb1",
  "rgb": {
    "r": 43,
    "g": 95,
    "b": 177
  },
  "hsl": {
    "h": 216.716,
    "s": 60.909,
    "l": 43.137
  },
  "oklch": {
    "l": 0.49518,
    "c": 0.14203,
    "h": 259.3
  },
  "luminance": 0.11872
}

Semantic roles & 50–950 ramp

primary

#2B5FB1

secondary

#C6A572

accent

#A644E4

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #2B5FB1

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

Preview Lab → · Contrast checker → · Palette generator →