#2B4E9B#2B4E9B

#2B4E9B is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.2% C 0.132 H 263.5°. Best body text is #FFFFFF at 7.88:1 contrast (WCAG AA passes).

Color values

HEX	#2B4E9B
RGB	rgb(43, 78, 155)
HSL	hsl(221, 57%, 39%)
HSV	hsv(221, 72%, 61%)
CMYK	cmyk(72.3%, 49.7%, 0%, 39.2%)
CIE-LAB	lab(34.66, 14.79, -45.78)
CIE-LCH	lch(34.66, 48.11, 287.90°)
OKLab	oklab(44.18% -0.0149 -0.1314)
OKLCH	oklch(44.18% 0.132 263.5)
XYZ	xyz(9.6350, 8.3279, 32.1037)
Luminance	0.0833 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4E9B #9B782B

analogous

#2B869B #2B4E9B #402B9B

triadic

#2B4E9B #9B2B4E #4E9B2B

tetradic

#2B4E9B #9B2B86 #9B782B #2B9B40

square

#2B4E9B #9B2B86 #9B782B #2B9B40

split-complementary

#2B4E9B #9B402B #869B2B

monochromatic

#101E3B #1E366B #2B4E9B #3B67C9 #6B8CD6

Accessibility & contrast

On white

7.88

#2B4E9B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#2B4E9B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4E9B

7.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4E9B	#FFFFFF	#000000	##FFFFFF
##2B4E9B	1.00	7.88	2.67	7.88
#FFFFFF	7.88	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23579E

Deuteranopia (green-blind)

#004D99

Tritanopia (blue-blind)

#00606D

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #2b4e9b;
/* rgb */ color: rgb(43, 78, 155);
/* oklch */ color: oklch(44.2% 0.132 263.5);

Tailwind

colors: {
  custom: {
    50: '#737fb9',
    500: '#2b4e9b',
    950: '#000000',
  },
}

SCSS

$custom: #2b4e9b;
$custom-light: #737fb9;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4e9b",
  "rgb": {
    "r": 43,
    "g": 78,
    "b": 155
  },
  "hsl": {
    "h": 221.25,
    "s": 56.566,
    "l": 38.824
  },
  "oklch": {
    "l": 0.44177,
    "c": 0.13221,
    "h": 263.5
  },
  "luminance": 0.08329
}

Semantic roles & 50–950 ramp

primary

#2B4E9B

secondary

#BCA165

accent

#B048E0

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090A11

muted

#7B7C80

Preview Lab

Preview with #2B4E9B

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

Preview Lab → · Contrast checker → · Palette generator →