#2B5DAB#2B5DAB

#2B5DAB is a mid, vivid blue. Relative luminance 0.113; OKLCH L 48.7% C 0.136 H 259.1°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#2B5DAB
RGB	rgb(43, 93, 171)
HSL	hsl(217, 60%, 42%)
HSV	hsv(217, 75%, 67%)
CMYK	cmyk(74.9%, 45.6%, 0%, 32.9%)
CIE-LAB	lab(40.05, 11.03, -46.66)
CIE-LCH	lch(40.05, 47.95, 283.30°)
OKLab	oklab(48.66% -0.0257 -0.1337)
OKLCH	oklch(48.66% 0.136 259.1)
XYZ	xyz(12.2586, 11.2812, 40.0516)
Luminance	0.1128 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B5DAB #AB792B

analogous

#2B9DAB #2B5DAB #392BAB

triadic

#2B5DAB #AB2B5D #5DAB2B

tetradic

#2B5DAB #AB2B9D #AB792B #2BAB39

square

#2B5DAB #AB2B9D #AB792B #2BAB39

split-complementary

#2B5DAB #AB392B #9DAB2B

monochromatic

#122849 #1F427A #2B5DAB #437AD0 #749DDC

Accessibility & contrast

On white

6.45

#2B5DAB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.26

#2B5DAB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #2B5DAB

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B5DAB	#FFFFFF	#000000	##FFFFFF
##2B5DAB	1.00	6.45	3.26	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.26	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3565AE

Deuteranopia (green-blind)

#1A59A9

Tritanopia (blue-blind)

#006F7B

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #2b5dab;
/* rgb */ color: rgb(43, 93, 171);
/* oklch */ color: oklch(48.7% 0.136 259.1);

Tailwind

colors: {
  custom: {
    50: '#768ac4',
    500: '#2b5dab',
    950: '#000000',
  },
}

SCSS

$custom: #2b5dab;
$custom-light: #768ac4;
$custom-dark: #000000;

JSON

{
  "hex": "#2b5dab",
  "rgb": {
    "r": 43,
    "g": 93,
    "b": 171
  },
  "hsl": {
    "h": 216.563,
    "s": 59.813,
    "l": 41.961
  },
  "oklch": {
    "l": 0.48656,
    "c": 0.13616,
    "h": 259.1
  },
  "luminance": 0.11283
}

Semantic roles & 50–950 ramp

primary

#2B5DAB

secondary

#C4A26E

accent

#A545E3

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0B13

muted

#7C7C82

Preview Lab

Preview with #2B5DAB

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

Preview Lab → · Contrast checker → · Palette generator →