#2B5BB0#2B5BB0

#2B5BB0 is a mid, vivid blue. Relative luminance 0.111; OKLCH L 48.6% C 0.145 H 260.8°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#2B5BB0
RGB	rgb(43, 91, 176)
HSL	hsl(218, 61%, 43%)
HSV	hsv(218, 76%, 69%)
CMYK	cmyk(75.6%, 48.3%, 0%, 31%)
CIE-LAB	lab(39.80, 14.25, -50.02)
CIE-LCH	lch(39.80, 52.01, 285.90°)
OKLab	oklab(48.57% -0.0232 -0.1436)
OKLCH	oklch(48.57% 0.145 260.8)
XYZ	xyz(12.5710, 11.1289, 42.5514)
Luminance	0.1113 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B5BB0 #B0802B

analogous

#2B9DB0 #2B5BB0 #3D2BB0

triadic

#2B5BB0 #B02B5B #5BB02B

tetradic

#2B5BB0 #B02B9D #B0802B #2BB03D

square

#2B5BB0 #B02B9D #B0802B #2BB03D

split-complementary

#2B5BB0 #B03D2B #9DB02B

monochromatic

#13284E #1F427F #2B5BB0 #4679D2 #789CDE

Accessibility & contrast

On white

6.51

#2B5BB0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#2B5BB0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B5BB0

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B5BB0	#FFFFFF	#000000	##FFFFFF
##2B5BB0	1.00	6.51	3.23	6.51
#FFFFFF	6.51	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C64B3

Deuteranopia (green-blind)

#0058AE

Tritanopia (blue-blind)

#006F7D

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #2b5bb0;
/* rgb */ color: rgb(43, 91, 176);
/* oklch */ color: oklch(48.6% 0.145 260.8);

Tailwind

colors: {
  custom: {
    50: '#7788c8',
    500: '#2b5bb0',
    950: '#000000',
  },
}

SCSS

$custom: #2b5bb0;
$custom-light: #7788c8;
$custom-dark: #000000;

JSON

{
  "hex": "#2b5bb0",
  "rgb": {
    "r": 43,
    "g": 91,
    "b": 176
  },
  "hsl": {
    "h": 218.346,
    "s": 60.731,
    "l": 42.941
  },
  "oklch": {
    "l": 0.48565,
    "c": 0.14549,
    "h": 260.8
  },
  "luminance": 0.1113
}

Semantic roles & 50–950 ramp

primary

#2B5BB0

secondary

#C6A771

accent

#AA44E4

background

#F7F8FC

surface

#EEEFF8

border

#C9CAD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2B5BB0

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

Preview Lab → · Contrast checker → · Palette generator →